Corrosion Resistance Of Substrate Research Articles

Effect of introduction of MXene on low energy plasma electrolytic oxidation

This article discusses the development of 2D MXene-containing coatings on magnesium alloy LA91, which are produced using low-energy plasma electrolytic oxidation (LePEO) processing. The coatings enhance substrate corrosion resistance and offer improved wear resistance. Notably, the coatings exhibit increased corrosion and wear resistance, as well as higher microhardness, while simultaneously reducing the voltage required for the PEO process. The addition of MXene to electrolyte enhances its conductivity, leading to the incorporation of MXene into the oxide coating. Despite a reduction in coating thickness, the resulting coatings demonstrate excellent corrosion resistance, wear resistance, and hardness. The MXene-enriched PEO coatings show impressive performance metrics compared to the MgLi alloy substrate. The corrosion current density of the MXene-enriched coatings is only 3.3 % of that of the MgLi alloy, while the average friction coefficient is reduced to 39.9 %, and the hardness is 6.6 times greater. Additionally, the coatings exhibit enduring corrosion resistance during prolonged immersion and neutral salt spraying tests. These performance improvements are attributed to MXene's ability to hinder the transmission of corrosive media, as well as its interlayer shear and self-lubrication properties, which enhance wear resistance.

Optimization of electrolytic plasma polishing process and surface performance analysis for 6061 aluminum alloy

Electrolytic Plasma Polishing (EPP), an innovative technology for polishing, has been utilized to improve the surface performance of 6061 aluminum alloys. An orthogonal experimental approach was carried out to investigate the multiple factors influencing the surface quality of aluminum alloys during the polishing process. The results indicated that peaks and scratches on the surface were successfully removed after polishing, with the average roughness reduced to 0.138 μm, approximately 1/8 of the original roughness. Additionally, the EPP process enhanced the substrate's corrosion resistance and hydrophobicity. Finally, it is proposed that the mechanism of surface smoothing effect of EPP is attributed to the combined action of plasma chemical dissolution and cavitation forces peeling. This research indicates EPP as a promising finishing technique with considerable potential for enhancing the surface performance of aluminum alloys in electronic component applications.

A non‐antibiotic organic coating on ZA6‐1 surface releasing different concentrations of sodium dodecyl sulphate/levulinic acid for orthopaedic application

AbstractBone implantation surgery is often accompanied by bacterial infection, resulting in infectious bone non‐union, pathological fracture and other serious consequences, which will aggravate the pain of patients. A non‐antibiotic coating consisting of sodium dodecyl sulphate (SDS) and levulinic acid (LA) with different concentrations was prepared by the authors on the zinc–aluminium alloy (ZA6‐1) using a wet chemistry treatment for orthopaedic application. The influence of SDS/LA concentrations on the surface morphology, composition and performance of the developed coating was investigated. The results showed that as‐prepared coating on a zinc alloy surface could improve the substrate's corrosion resistance and increase the degradation rate from 0.82 to 19.70 μm/year upon raising the SDS/LA concentration. Furthermore, higher hydrophilicity (<14°), better cell proliferation (>100%) and morphology, as well as good cell adhesion and differentiation (ALP >95% for 7 days) were observed on coated zinc alloys. The increased SDS/LA concentration slightly weakens the biocompatibility and enhances the antibacterial performance of coated zinc alloys due to the synergistic effect of SDS/LA. Overall, the coating comprising 6 wt.% SDS and 9 wt.% LA showed excellent antibacterial action with a high level of biocompatibility, confirming its potential application for orthopaedic implants.

Superior corrosion resistance of a slurry FeAl coating on 316LN stainless steel in 550 ℃ liquid lead-bismuth eutectic

An intermetallic Fe-Al coating was successfully produced on 316LN austenite stainless steel by slurry Aluminizing. The coating greatly enhanced the corrosion resistance of substrate in LBE (lead-bismuth eutectic) containing low (10−7 wt%) and high (1.8 ×10−3 wt%) oxygen concentrations at 550 ℃ and the coating was mostly intact after 1500 h exposure test. The high corrosion resistance results from the formation of a uniform layer of alumina oxide on the coating which can be achieved when the dissolved oxygen is above 10−18 wt%. This FeAl coating maybe a promising option for protecting structure material in the fourth LBE-cooled fast reactor.

Influence of Laser Power on Microstructure and Properties of Al-Si+Y2O3 Coating

Al-Si/7.5 wt.%Y2O3 coatings were prepared on Mg alloy with laser cladding to enhance the wear and corrosion resistance of substrate. The influence of laser power on the microstructure and properties of the coating were discussed. The results uncovered that the coatings consisted primarily of Mg2Si, Mg17Al12, Mg2Al3, Al4MgY, and α-Mg phases. Through calculating, it was observed that the crystal size decreased with the decrease in the laser power. Y2O3 gave the coating a better strengthening effect due to the fine-grain strengthening and hard-phase strengthening. The average hardness of the coating with laser power of 1100 W achieved 312 HV, which was approximately 4.2 times that of the substrate. The wear volume of the coating was 22.2% that of the substrate. Compared with Mg alloy, the self-corrosion potential of the coating increased by 1.09 V, and the self-corrosion current density decreased by three orders of magnitude.

Effect of modified MgAl-LDH coating on corrosion resistance and friction properties of aluminum alloy

The in-situ growing approach was utilized in this article to construct the magnesium–aluminum layered double hydroxide (MgAl-LDH) film on the surface of a 1060 aluminum anodized film. To improve the corrosion resistance and friction qualities of aluminum alloy, the MgAl-LDH coating was treated using stearic acid (SA) and thiourea (TU). The aluminum substrate and anodized aluminum film layer corroded to varying degrees after 24 h of immersion in 3.5% (mass) NaCl solution, while the modified hydrotalcite film layer continued to exhibit the same microscopic morphology even after being immersed for 7 d. The results show that the synergistic action of thiourea and stearic acid can effectively improve the corrosion resistance of the MgAl-LDH substrate. The tribological testing reveals that the hydrotalcite film layer and the modified film layer lowered the friction coefficient of the anodized aluminum surface substantially. The results of the simulations and experiments demonstrate that SA forms the dense LDH-TU interlayer film layer by exchanging NO3– ions between TU layers on the one hand and the LDH-SA film layer by adsorption on the surface of LDH on the other. Together, these two processes create LDH-TU-SA, which can significantly increase the substrate's corrosion resistance. This synergistically modified superhydrophobic and retardant hydrotalcite film layer offers a novel approach to the investigation of wear reduction and corrosion protection on the surface of aluminum and its alloys.

Degradation behavior of the as-extruded and ECAP-processed Mg–4Zn alloy by Ca addition and hydrothermal coating

Coating is an effective approach to address the high corrosion rate of biodegradable Mg alloys, as their main challenge toward their extensive use. In this regard, it was tried to control the degradation process of an Mg–4Zn alloy by Ca addition, equal channel angular pressing (ECAP), and hydrothermal coating. The obtained results indicated that excellent grain refinement induced by Ca incorporation and ECAP simultaneously, improved both mechanical strength and corrosion resistance of the Mg-based substrate. The achieved grain refinement resulted in a thicker, more compact and integrated coating, where the ECAP-processed Mg–4Zn–0.5Ca alloy exhibited the best coating quality with no penetrative cracks. The ECAP-coated Mg–4Zn–0.5Ca alloy benefits from both the improved coating quality and superior substrate corrosion resistance, leading to a noticeable improvement in corrosion resistance. This emphasizes the positive role of Ca addition and ECAP process in promoting the mechanical properties and degradation behavior of Mg–4Zn substrate, as well as the quality of hydrothermally-synthesized coating.

Anodic corrosion of heteroatom doped graphene oxide supports and its influence on the electrocatalytic oxygen evolution reaction

Transition metal-based electrocatalysts supported on carbon substrates face the challenges of anodic corrosion of carbon during oxygen evolution reaction at high oxidation potential. The role of electrophilic functional groups (carbonyl, pyridinic, thiol, etc.) incorporated in graphene oxide has been studied towards the anodic corrosion resistance. Heteroatom functionalized carbon supports possess modified electronic properties, surface oxygen content, and hydrophilicity, which are crucial in governing electrochemical corrosion in the alkaline oxidative environment. Evidently, electron-withdrawing groups in NGO support (pyridinic, cyano, nitro, etc) and its lower oxygen content impart maximum corrosion resistance and anodic stability in comparison to the other sulfur-doped and co-doped graphene oxide support. In this report, we establish the baseline evaluation of carbon-supported OER electrocatalysts by a systematic analysis of activity and substrate corrosion resistance. The result of this study establishes the role of surface composition of the doped supports while for designing a stable, corrosion-resistant OER electrocatalyst.

Hot corrosion behaviour of constant and pulsed current welded Hastelloy X in Na2SO4, V2O5, and NaCl salt mixture at 900 °C

The high-temperature corrosion behavior of constant current gas tungsten arc (GTA) and pulsed current gas tungsten arc (PCGTA) welded Hastelloy X with different filler wires (C263 and ERNiCr-3) are studied for 50 cycles at 900 °C. Molten salt I (MS I) (75% Na2SO4 + 25% V2O5) and molten salt II (MS II) (75% Na2SO4 + 20% V2O5 + 5% NaCl) were coated on the welded specimens. MS II coated substrate shows the highest weight gain than MS I with a parabolic constant for GTA ERNiCr-3 as 21.440 × 10–6 mg2/(cm4.s). Whereas PCGTA C263 welded sample with MS I, revealed parabolic constant (lowest) of 0.008 × 10–6 mg2/ (cm4.s). Based on the results, an increasing pattern of hot corrosion resistance of substrates is arranged as GTA ERNiCr-3 < GTA C263 < PCGTA C263 < PCGTA ERNiCr-3. PCGTA shows more refined grains, higher grain boundary volume, better corrosion resistance, and more protective phases like Cr2O3, NiO, NiCr2O4, CoCr2O4, Al2O3, NiFe2O4, NbO than GTA weldment. But phases such as Fe2O3, MoO3, and Cr2S3 (non-protective phases) decrease corrosion resistance due to acid fluxing of alloying elements that promote the oxide scale exfoliation, spallation, chipping, and cracking. This study observed that PCGTA with C263 filler in MS I and MS II environment provides good corrosion resistance at high temperatures.

Facile preparation of superamphiphobic aluminum alloy surfaces and their corrosion resistance

Aluminum alloys (Al alloys) are susceptible to corrosion due to their high chemical activity, particularly in complicated marine surroundings. Liquid-repelling Al alloy surfaces with enhanced corrosion resistance were prepared via a facile one-step chemical etching and modification with 1H,1H,2H,2H-Perfluorodecyltriethoxysilane. Results indicated that the fabricated sample with step-like micro/nanostructures exhibited excellent superamphiphobicity, which the static contact angles achieved 162°, 158°, and 152° for water, ethylene glycol, and hexadecane, respectively. Furthermore, electrochemical tests shed light on that the superamphiphobic surface fabricated greatly improved the anti-corrosion performance and durability of the substrate in 3.5 wt% NaCl aqueous solution . The whole process requires no special equipment, providing a facile and environment-friendly method to fabricate superamphiphobic surfaces. • Superamphiphobic aluminum alloy surface is fabricated by a simple method. • The prepared superamphiphobic surface exhibited excellent superamphiphobicity. • The superamphiphobic surface greatly improves the corrosion resistance of substrate.

Corrosive-wear and Electrochemical Performance of Laser Thermal Sprayed Co30Cr8W1.6C3Ni1.4Si Coating on Ti6Al4V Alloy

Co30Cr8W1.6C3Ni1.4Si coatings were fabricated on Ti6Al4V alloy using a laser thermal spraying (LTS). The surface and cross-section morphologies, phases and bonding strength of obtained coatings were investigated using scanning electronic microscopy (SEM), X-ray diffraction (XRD), and scratch test, respectively. The effects of laser power on the coefficients of friction (COFs) and corrosive-wear behaviors of Co30Cr8W1.6C3Ni1.4Si coatings were investigated using a wear tester in 3.5% NaCl solution, and the electrochemical corrosion performance was analyzed using an electrochemical workstation. The experimental results show that the Co30Cr8W1.6C3Ni1.4Si coating is bonded with the substrate in the metallurgical form, and the bonding strengths of Co30Cr8W1.6C3Ni1.4Si coatings fabricated at the laser power of 1 000, 1 200, and 1 400 W are 76.5, 56.5, and 55.6 N, respectively. The average COFs of Co30Cr8W1.6C3Ni1.4Si coatings fabricated at the laser power of 1 000, 1 200, and 1 400 W are 0.769, 0.893, and 0.941, respectively; and the corresponding wear rates are 0.267 × 105, 0.3 1 78 × 105, and 0.325 × 105 µm /Nm, respectively, which increases with the increase of laser power, the wear mechanism is primarily abrasive wear. The corrosion potential of Co30Cr8W1.6C3Ni1.4Si coatings fabricated at the laser power of 1 000, 1 200, and 1 400 W is −0.05, −0.25, and −0.31 V, respectively, higher than −0.45 V of substrate which enhances the electrochemical corrosion resistance of substrate.

Electrophoretic Deposition and Characterization of Chitosan/Eudragit E 100 Coatings on Titanium Substrate

Currently, a significant problem is the production of coatings for titanium implants, which will be characterized by mechanical properties comparable to those of a human bone, high corrosion resistance, and low degradation rate in the body fluids. This paper aims to describe the properties of novel chitosan/Eudragit E 100 (chit/EE100) coatings deposited on titanium grade 2 substrate by the electrophoretic technique (EPD). The deposition was carried out for different parameters like the content of EE100, time of deposition, and applied voltage. The microstructure, surface roughness, chemical and phase composition, wettability, mechanical and electrochemical properties, and degradation rate at different pH were examined in comparison to chitosan coating without the addition of Eudragit E 100. The applied deposition parameters significantly influenced the morphology of the coatings. The chit/EE100 coating with the highest homogeneity was obtained for Eudragit content of 0.25 g, at 10 V, and for 1 min. Young’s modulus of this sample (24.77 ± 5.50 GPa) was most comparable to that of human cortical bone. The introduction of Eudragit E 100 into chitosan coatings significantly reduced their degradation rate in artificial saliva at neutral pH while maintaining high sensitivity to pH changes. The chit/EE100 coatings showed a slightly lower corrosion resistance compared to the chitosan coating, however, significantly exceeding the substrate corrosion resistance. All prepared coatings were characterized by hydrophilicity.

Preparation of WC Reinforced Co-Based Alloy Gradient Coatings on a H13 Mold Steel Substrate by Laser Cladding

H13 die steel often fails as a result of physical and chemical effects such as wear, erosion and cyclic stress. Accordingly, the study evaluates Co-based gradient coating on an H13 steel featuring a stress-relieving effect. Scanning electron microscope and X-ray diffraction were used to analyze the microstructure and phase of the coatings. A microhardness tester and friction and wear tester were used to compare the hardness and wear resistance of the coatings and the substrate, and the wear morphology was observed. A pendulum impact test was used to compare the impact resistance of the coatings and the substrate, and the fracture morphology was observed. Finally, a corrosion test was used to compare the corrosion resistance of coatings and substrate. The results show that the Co-based gradient coatings have good combinations with the substrate, the hard phase content gradually increases from the bottom to the top of the coating, and the crystal microstructure generally maintains a distribution trend from coarse to fine. The hardness of the gradient coatings is significantly higher than the substrate, and from the coating surface to the substrate, the hardness decreases slowly. The wear loss of the coatings is much lower than that of the substrate, the main wear mechanism of the substrate is abrasive wear, and the main wear mechanism of the coatings is brittle spalling. While the gradient coatings increase the surface hardness, the brittleness also increases, the impact resistance of the coatings is lower than that of the substrate, the fracture form of the substrate is a ductile fracture, and the fracture form of the coating is a brittle fracture. The gradient coatings effectively improve the corrosion resistance of the substrate surface, and the higher the content of the reinforcing phase, the better the corrosion resistance of the coatings.

Phosphate conversion coatings on 35CrMnSi steels subjected to different heat treatments

Phosphate chemical conversion (PCC) coatings are widely used to improve the corrosion resistance of steels. However, the effects of different substrate heat treatments on the preparation and properties of PCC coatings have rarely been investigated. This research focuses on the influence of rolled (R), normalizing (N), quenching (Q), low-temperature tempering (L-T) and tempering (T) treatments of 35CrMnSi steels on subsequent PCC coating onto these steels. The results showed that the heat treatments played a vital role in coating formation rate, phosphate crystal size and coating anti-corrosion properties. The coating formation rate for heat-treated substrates was as follows: Q>T>L-T>N>R. The order of corrosion resistance of substrates was: R>N>L-T>T>Q. The anti-corrosion resistance of PCC-coated steels after different heat treatments was as follows: T>L-T>Q. The PCC-coated tempered sample offered the best corrosion resistance due to the homogeneous and fine-crystal microstructure of the coating.

The role of temperature and H2S (thiosulfate) on the corrosion products of API X65 carbon steel exposed to sweet environment

Oil and gas industry is constantly facing challenges in prospecting and transport, dealing with the corrosion and degradation of the pipelines. This work presents an electrochemical evaluation of API X65 steel exposed to CO2/thiosulfate (10−3mol/l) aqueous deaerated medium. Sweet and sour corrosion were studied simultaneously. Electrochemical Impedance Spectroscopy (EIS) and Linear Polarization Resistance (LPR) tests were performed using an autoclave, 5 bar of CO2 partial pressure at 25, 90 and 120 °C with and without H2S. Corrosion products were characterized by Weight loss, Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD). Protective corrosion conditions were achieved at 120 °C with and without H2S. Without H2S, a stable and denser FeCO3 film was formed. With H2S, FeS film reduced the CO2 corrosive effect and retarded FeCO3 precipitation. Both cases demonstrated an improvement of the substrate corrosion resistance at 120 °C. At this temperature occurred a competitive films formation, reflecting in a corrosion rate decrease.

Development of an in-situ chitosan‑copper nanoparticle coating by electrophoretic deposition

The aim of this study was to develop a chitosan‑copper nanocomposite coating on stainless steel 316L to improve the antibacterial properties and corrosion resistance of the substrate. After in-situ synthesizing of chitosan-modified Cu nanoparticles, electrophoretic deposition was utilized to deposit chitosan‑copper nanocomposite coatings consisting of various amounts of Cu nanoparticles. Moreover, the role of various deposition parameters such as time and voltage on the coating properties was investigated. Physical and chemical properties of the synthesized Cu nanoparticles and the nanocomposite coatings were analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM), coupled with the Energy-Dispersive Spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM). The corrosion resistance of coatings was measured by electrochemical measurements such as tafel and electrochemical impedance spectroscopy (EIS) tests. The antibacterial properties of nanocomposite coatings were analyzed using several Gram-positive and Gram-negative microorganisms, including methicillin-resistant Staphylococcus aureus and Escherichia coli. Results confirmed that Cu nanoparticles were synthesized with an average size of 11 ± 6 nm. Moreover, the incorporation of 0.5 wt% copper nanoparticle in the chitosan coating under 20 V and 5 min conditions resulted in the formation of uniform and crack-free nanocomposite coating with a thickness of about 17 μm. Results confirmed a significant improvement in the antibacterial activity and corrosion resistance of 316L stainless steel substrates. In conclusion, chitosan‑copper nanocomposites could be considered as a good candidate for increasing the antibacterial properties and corrosion resistance to prevent infections in biomaterials applications.

Development of a novel biodegradable and anti-bacterial polyurethane coating for biomedical magnesium rods

Surface modification of biomedical Mg with functional polymers coatings is an effective and simple strategy to improve the corrosion resistance and anti-bacterial property. Herein, we develop a novel biodegradable and anti-bacterial polymer coating for Mg rods. A key feature of our approach is to treat the Mg rods with polyurethane, a widely used coating material with strong structural controllability and good film-formation property. Polyurethanes (PU) functionalized by polyethylene glycol (PEG) chains (GPU) and zwitterions (ZPU) were firstly synthesized and subsequently applied to fabricate coatings on Mg-based rods. Scanning electron microscopy (SEM) result demonstrates that a homogeneous and dense layer with a thickness of ~4–15 μm is readily formed on the substrates by dip-coating method. We first investigated how PU coatings would affect their resulting corrosion behaviors by the electrochemical corrosion test, surface morphology examining and element analysis of the immersed samples. Then, we evaluated their protection capabilities and the relationship to Mg2+ ion release and pH value alteration under the physiological conditions. Results show that the corrosion resistance of Mg rods is improved appreciably after coating with the synthesized PU polymers. More importantly, the functionalized PU exhibit enhanced antibacterial performance and excellent blood compatibility. In particular, ZPU-12 not only successfully improves the corrosion resistance of substrates, but also produces an antimicrobial coating for preventing bacterial attachment. The application of these functionalized PU coatings for the surface modification of biomedical Mg-based alloys can provide a practical and potential strategy to expedite their clinical acceptance.

Salt spray corrosion and electrochemical corrosion characteristics of CAIP and LTPN fabricated AlCrN/NL composite coating

An AlCrN/nitrided layer (NL) composite coating was fabricated on H13 hot work mould steel using a cathodic arc ion plating (CAIP) and low temperature plasma nitriding (LTPN). The surface and cross–section morphologies, chemical composition and phases of obtained coating were characterized using a scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) and x-ray diffractometer (XRD), respectively. The salt spray corrosion (SSC) and electrochemical corrosion properties of AlCrN/NL coating in 3.5 wt% NaCl solution were analyzed using a salt spray corrosion chamber and electrochemical workstation. The results show that the AlCrN/NL composite coating consists of AlN, Cr1.75V0.25N2, AlCrFe2 and SiC phases, the formation of ceramic phases increases its corrosion resistance. The aggressive Cl– is adhered on the corrosion products after the SSC test, the corrosive micro–cells and pitting corrosion are formed due to the differences of structure and relative potentials. The corrosion current densities of AlCrN/NL coating, NL and substrate are 3.255 × 10–6, 9.848 × 10–6, and 1.522 × 10−5 A · cm–2, respectively, indicating that the corrosion resistance of AlCrN/NL coating is higher than that of NL and substrate. The polarization resistance of 11 798 Ω · cm2 on the AlCrN/NL coating is 1.68 and 3.67 times higher than that of NL and substrate, respectively, which shows that the AlCrN/NL coating increases the corrosion resistance of substrate.

Development of a high-performance corrosion protective functional nano-film based on poly acrylic acid-neodymium nitrate on mild steel surface

This study aims at development of a high-performance nano-film based on poly acrylic acid and neodymium cation. The microstructure, chemical composition, topography and surface chemistry of deposited film were studied by field emission scanning electron microscope (FE-SEM), electron dispersive spectroscopy (EDS), attenuated total reflection (ATR) and X-ray photoelectron spectroscopy (XPS), atomic force microscope (AFM) and contact angle evaluation. The corrosion resistance of the samples treated by Nd-PAA (Neodymium-Poly acrylic acid) composite was studied by electrochemical impedance spectroscopy (EIS) and polarization tests, respectively. Also for further examination, the film formation and active adsorption sites were surveyed by computational studies. The result showed the precipitation of a dense and crack free and ultrafine Nd-PAA film on the steel surface. It was found that the PAA retarded the precipitation of Nd on the surface. Neodymium was present in both trivalent and tetravalent state. Due to the anionic nature of the PAA, high volume of Nd-PAA complexes deposited in the surface. Also, the positive role of PAA addition on the steel substrate corrosion resistance enlargement was proved by electrochemical tests results. The molecular simulation outcomes clarified the adsorption of neodymium-poly acrylic acid complex on the iron substrate.

Effects of laser remelting speeds on microstructure, immersion corrosion, and electrochemical corrosion of arc–sprayed amorphous Al–Ti–Ni coatings

An arc–sprayed amorphous Al–Ti–Ni coating on S355 structural steel was processed using a laser remelting (LR). The surface and cross–section morphologies, chemical compositions, phases and residual stresses of obtained Al–Ti–Ni coatings at the LR speeds of 5, 10, and 15 mm/s were analyzed using a field emission scanning electron microscope (FESEM), energy dispersive spectrometer (EDS), X–ray diffractometer (XRD), and X–ray diffraction stress tester, respectively, and the effects of LR speeds on their immersion corrosion and potentiodynamic polarization curves of Al–Ti–Ni coatings in 3.5% NaCl solution were also investigated to analyze the mechanism of corrosion resistance. The results show that the metallurgical bonding is formed at the Al–Ti–Ni coating interface due to the interdiffusions and recombinations of Al, Ti, Ni, Fe, Cr and Mn. The Al–Ti–Ni coatings at the different LR speeds obtain a certain amount of amorphous phases, which are detected as AlFe, AlFe3, AlCrFe2, Ni2MnAl, and AlNi phases. The residual stresses of as–obtained Al–Ti–Ni coatings at the LR speeds of 5, 10, and 15 mm/s are −12 ± 8, 43.9 ± 3, and −34.4 ± 8 MPa, respectively, of which the tensile residual stress exacerbates the immersion corrosion and the compressive stress restrains the crack expansion. The corrosion potentials of Al–Ti–Ni coatings at the LR speeds of 5, 10, and 15 mm/s are −1.046, −1.106, and −0.986 V, respectively, which shift positively than S355 steel and effectively increase the corrosion resistance of substrate, the electrochemical corrosion resistance of Al–Ti–Ni coating at the LR speed of 15 mm/s is the best among the three kinds of coating.