TiB2 Particles Research Articles

Effects of trace nano-TiB2 particles and multiple cooling rates on microstructure and properties of Al-4.5Cu alloy

Ceramic particles and cooling rates have important effect on the Strength and plasticity of aluminum-based materials. In this paper, the microstructure and mechanical properties of Al-4.5Cu alloy were controlled by adding ultra-trace amounts of in-situ synthesized TiB2 particles and multiple cooling rates. The results show, that the average size of TiB2 particles is about 86.35 nm. The lattice dis-registry between TiB2 and α-Al was calculated to be 4.5 %, the TiB2 particles can be used as α-Al heterogeneous nucleation cores. The average grain size and standard deviation of Al-4.5Cu alloy with the addition of 0.02 wt% TiB2 and high cooling rate are 30.5 μm and 15.9, respectively. Compared with the Al-4.5Cu alloy without adding TiB2 particles and at medium cooling rate, the average grain size and standard deviation decreased by 68.1 % and 44.2 %, respectively. It can be seen from the room temperature tensile properties of the alloy after T6 heat treatment, that the yield strength, tensile strength and elongation of the Al-4.5Cu alloys with the addition of 0.02 wt% TiB2 and high cooling rate are 468.3 MPa, 513.9 MPa, and 13.4 %, respectively. Compared with the Al-4.5Cu alloy without adding ceramic particles and at medium cooling rate, the yield strength, tensile strength and elongation increased by 15.6 %, 9.2 % and 25.2 %, respectively.

Electrophoretically Deposited TiB2 Coatings in NaF-AlF3 Melt for Corrosion Resistance in Liquid Zinc

Molten salt electrophoretic deposition is a novel method for preparing coatings of transition metal borides such as TiB2, which has emerged in recent years. To broaden the applications of transition metal boride coatings prepared by this method, this paper investigates the corrosion resistance of TiB2 coatings, produced through molten salt electrophoretic deposition, to liquid zinc. By applying a cell voltage of 1.2 V (corresponding to an electric field of 0.6 V/cm) for 1 h in molten NaF-AlF3, the nanoscale TiB2 particles migrated to the cathode and were deposited on the graphite substrate, forming a smooth and dense TiB2 coating with a thickness of 43 μm. Subsequently, after subjecting the TiB2-coated graphite to corrosion resistance tested in molten zinc for 120 h of continuous immersion, no cracks were observed on the surface or within the coating. The produced TiB2 coating demonstrated excellent corrosion resistance. These research results suggest that the fully dense TiB2 coating on the graphite substrate, produced through molten salt electrophoretic deposition, exhibits excellent corrosion resistance to liquid zinc.

Effects of TiB2 contents on the microstructure and oxidation behavior of Mo-Si-B composite coatings

A novel Mo-Si-B-TiB2 composite coating was prepared on Nb-Si based ultrahigh temperature alloy by slurry sintering. The effects of TiB2 contents (1, 3, 5 and 10 wt%) on the microstructure and oxidation behavior of Mo-Si-B composite coatings were revealed. The results show that TiB2 modified Mo-Si-B composite coatings display a bilayer structure, in which the outer layer is composed of MoSi2, Mo5Si3 and TiB2 phases, and the inner layer is composed of (Ti,Nb)5Si4, (Nb,X)5Si3 and (Nb,Ti)B2 phases. The added TiB2 particles are evenly distributed in the outer layer of the coatings. By introducing TiB2 into the coating, the service life of Mo-Si-B composite coatings is extended from 50 h to 100 h at 1250 ℃, the oxidation rate of the coating is reduced from 1.62 to 0.02 mg2 cm−4 h−1. This indicates that the addition of appropriate TiB2 effectively slows down the oxidation rate and significantly improves the oxidation resistance of Mo-Si-B composite coatings. The Mo-Si-B composite coating with 3 wt% TiB2 had the lowest mass gain (3.9 mg/cm2) after oxidation at 1250 ℃ for 100 h, and it exhibited the best oxidation resistance. This is attributed to the formation of composite oxide scale with crack-free, good healing ability, suitable levels of differential thermal expansion and low oxygen permeability.

Elastoplastic and Electrochemical Characterization of xTiB2 Strengthened Ti Porous Composites for Their Potential Biomedical Applications

The microstructure, elastoplastic properties, and corrosive response of induced porous Ti-TiH2 materials reinforced with TiB2 particles were investigated. Samples were fabricated using CP-Ti Grade1, Titanium Hydride (TiH2), TiB2 powders (0, 3, 10, and 30 vol.%), and ammonium bicarbonate salt (40 vol.%) as a space holder. Composites were fabricated using the Powder Metallurgy technique under high-vacuum conditions (HVS) at 1100 °C. Scanning electron microscopy, X-ray diffraction, nanoindentation tests, and electrochemical assays were used to investigate the pore formation, pore distribution, phase formation, elastoplastic properties, and electrochemical behavior of the compounds, respectively. With a mean pore diameter of 50–900 µm and Young’s modulus of less than 100 GPa, which is close to the properties of human bone, the pore structures of the compounds processed here are shown to be a potential biomaterial for osseointegration. In addition, their H/Er and H3/Er2 ratios for the reinforced samples are higher than those of the unreinforced sample (1.5 and 4 times higher than the unreinforced sample, respectively), suggesting a better wear resistance of the Ti-TiH2/xTiB2 composites. Electrochemical experiments demonstrated that the Ti-TiH2/xTiB2 composites exhibited superior passivation properties compared to the Ti-TiH2 sample. Additionally, the corrosion rates exhibited by the 3 and 10 vol.% of TiB2 samples were found to be within an acceptable range for potential biomedical applications (29.26 and 185.82 E-3 mm·y−1). The elastoplastic properties combined with the electrochemical behavior place the Ti-TiH2/3-10TiB2 composites as potential candidates for the biomedical application of CP-Ti.

Microstructure and properties of multiple hybrid reinforced CNTs-TiB2-TiC/Cu laminated composites

Cu matrix laminated composites reinforced with CNTs exhibit excellent mechanical properties; however, the Cu matrix between the laminated structures suffers from insufficient strength. To improve the strength of the matrix and the laminated structure in CNTs/Cu laminated composites, TiH2 and B4C particles were introduced into the Cu matrix via mixing powder, adsorption, hot-pressed sintering and cold rolling, furnishing CNTs-TiB2-TiC/Cu laminated composites. The tensile strength of the CNTs-TiB2-TiC/Cu laminated composites (513 MPa) increased by 26.04 % and 81.27 % compared with those of CNTs/Cu-Ti laminated composites (407 MPa) and CNTs/Cu laminated composites (283 MPa), and the elongation was 18.47 %. The in situ generated TiB2 and TiC reinforcement particles dispersed in the matrix materials induce particle strengthening, enhancing the dislocation density and load-bearing effect. Meanwhile, the CNTs with a laminated structure transfer and share the load. This multiply hybrid reinforcement structure of dispersed TiB2 and TiC particles along with CNTs lamination improves the mechanical properties of the resulting CNTs-TiB2-TiC/Cu laminated composites.

Effect of Al-Ti-B-Er on the Microstructure and Properties of Ultrahigh-Strength Aluminum Alloy

To refine the grain size and improve the mechanical properties of ultrahigh-strength aluminum alloy (Al-10Zn-1.9Mg-1.6Cu-0.12Zr), the Al-Ti-B-Er grain refiner was prepared by the melt reaction method using the aluminum melt and Al + Ti + B precursor. The results exhibit that the Al-Ti-B-Er grain refiner is mainly composed of a block TiAl3 phase, and loose agglomerated nano-sized TiB2 and Al3Er phases. The microstructure of ultrahigh-strength aluminum is significantly affected by the Al-Ti-B-Er refiner, which changes from dendrite to equiaxial grain with increasing Al-Ti-B-Er content, and the size of the eutectic phase is significantly refined. The high-efficiency refinement of Al-Ti-B-Er is due to Er promoting the uniform distribution of TiAl3 particles and the formation of loose agglomerated nano-sized TiB2 particles. The optimal addition content of Al-Ti-B-Er into ultrahigh-strength aluminum alloys is 1 wt%, whose grain size is approximately 40 µm. Additionally, the strength and ductility of ultrahigh-strength aluminum alloys are simultaneously improved by adding 1wt% Al-Ti-B-Er after the T6 treatment, reaching 756 MPa and 20%, respectively. This enhancement in strength and ductility is mainly attributed to grain refinement and the eutectic phase refinement.

Improving TiB2 dispersion in Al-Si composites by interfacial projection: High-throughput first-principles calculations and experimental verification

The dispersion of reinforced particles is crucial in improving the mechanical properties of ceramic particles reinforced Al matrix composites. In this work, a novel interfacial projection strategy was proposed to improve the dispersion of TiB2 particles in Al-Si composites through high-throughput first-principles calculations with the experimental verification. Firstly, the Al(111)/TiB2(0001) interface model was constructed. Then, the pre-substitution of Si at 2 at. % concentration was employed to simulate the solutionized Al matrix. Secondly, alloying behaviors of 55 elements (10 substitution sites per element) in the Si-Al(111)/TiB2(0001) interface were studied by high-throughput first-principles calculations in terms of the relative interface formation energy and the relative work of adhesion. With these values, a theoretical alloying map for evaluating the dispersion ability of these alloying elements was plotted. Accordingly, the copper mold experiments were conducted to validate the theoretical alloying map. Based on the electron analysis, the enhanced interface bonds by alloying primarily attributed to electron accumulations around Si atom, indicating that the pre-substitution Si atom was vital for a reliable simulation result. Generally, this interfacial projection strategy provides a precise and potent approach in designing high-performance Al matrix composites, and should be applicable to other reinforced particles.

Analyzing the synergistic effects of hard ceramic TiB2 and rare earth oxide La2O3 on mechanical behaviour, wear resistance, and residual stress of AA6061-T6 hybrid composite fabricated via ultrasonic-assisted stir casting

This investigation involves the fabrication of an aluminium metal matrix composite using AA6061-T6 alloy as the matrix, incorporating 2 wt% of hard ceramic (TiB2, 14 μm particle size) and 0.5 wt% of rare earth oxide (La2O3, 40–50 nm particle size) reinforcement powders through ultrasonic assisted stir casting. The study examines the microstructure, residual stress, and mechanical properties alongside performing pin-on-disk wear tests. Taguchi's optimization and ANOVA are used to optimize the wear rate of the composite using three control parameters: Load, Sliding Distance, and Sliding Speed. Results from optical micrography and field emission scanning electron microscopy (FESEM) with energy-dispersive spectrometer (EDS) analysis confirm the uniform distribution of TiB2 and La2O3 particles within the AA6061-T6 volume when ultrasonic stirring is employed. The composite's microhardness is found to increase by 25.15 %, and its tensile strength by 31.32 % compared to the base alloy due to a higher dislocation density. ANOVA highlights Load as the primary influencer, contributing 69.54 %, followed by Sliding Distance (17.45 %) and Sliding Speed (12.56 %). The optimal parameters for minimizing wear rate are found to be Load (20 N), Sliding Distance (1500 m), and Sliding Speed (2.5 m/s). Scanning Electron Microscope (SEM) images of worn surfaces reveal various mechanisms such as abrasion, delamination, and adhesion, with abrasion being the dominant mechanism. Residual stress increases with the addition of TiB2 and La2O3 particles in the matrix, showing transitions from tensile to compressive stress from the inner to the outer surface of the composite casting.

In-situ synthesis and characterization of lightweight steel matrix composites reinforced by TiB2

This study aimed to synthesize lightweight steels in situ reinforced with 5 % and 10 vol% of TiB2 and evaluate the microstructural, physical, and mechanical properties. The Fe-(15;20 wt%)Mn-3 wt%Al-0.1 wt%C with 5 and 10 vol% of TiB2 were produced by spray forming followed by hot rolling and annealing. The concept of varying the manganese content was to assess the influence of the matrix constitution on the composite properties. The findings pointed to a direct correlation between the manganese content and the size and morphology of the TiB2 particles. The presence of the ceramic particles re-established the modulus of elasticity above 200 GPa only for composites with a predominantly ferritic matrix. The composites with a matrix composed mostly of austenite showed no gains in ductility during the tensile tests despite the activation of the TWIP effect. However, their wear behavior stands out positively.

Effect of nano-TiC/TiB2 and final thermo-mechanical treatment on microstructure and properties of 7185 alloy

In this study, a new generation of ultra-high strength 7185 aluminum alloy and nano-sized TiC+TiB2 particles reinforced 7185 alloy matrix composites (PRAMCs) were prepared, and its thermos-mechanical treatment (TMT) was studied. The electron probe microanalyzer, electron back scattered diffraction, and transmission electron microscope are used to study microstructure evolution. Tensile tests are used to investigate the mechanical properties of composite materials. The results showed that the grain can be refined significantly by adding particles. The grain size of the quenched state is very fine. The strength and plasticity of the alloy are significantly improved. After the final TMT, many dislocations were introduced, and the precipitation phase and dislocation intertwined with each other during the aging process. This increased the dislocation density and promoted the precipitation process. Thus, the strength and corrosion resistance are improved, but the plasticity is reduced. The yield strength, tensile strength, and elongation of the PRAMCs designed in this study after final TMT are 483.6 MPa, 520.4 MPa, and 9.1 %, respectively. The inter-granular corrosion layer depth is 47.2 μm. The grade of exfoliation corrosion for 6 h and 24 h is PC, and EA, respectively. This study can provide strategies for the performance optimization of PRAMCs.

Investigation on mechanical properties of aluminum hybrid matrix composites reinforced with fly ash and titanium diboride using stir casting technique

Aluminium hybrid matrix composites (AHMCs) is employed in the automotive and aerospace industries because to their high strength-to-weight ratio, corrosion resistance, and tribological properties. The objective of this research is to examine the metallurgical, mechanical, and corrosion characteristics of Aluminum hybrid matrix composites (AHMCs) produced by reinforcing LM25 alloy with 5% fly ash and varying percentages (4%, 8%, 12%) of TiB2 using the stir casting technique. The uniform distribution of reinforcing particles was verified by capturing images via SEM and EDAX. Density, Tensile strength, microhardness was conducted for the prepared AHMCs. The outcome reported there was an enhancement by adding reinforcement particles of fly ash and TiB2 comparing to the pure LM25 alloy. This improvement was attributed to the presence of fly ash and TiB2 particles, resulting in a higher dislocation density, with increasing TiB2 content demonstrating improved strength and ductility compared to conventional LM25 alloy.

Effect of the TiB2 content on the mechanical and tribological properties of TiB2/AZ91 composites fabricated by vacuum hot-press sintering process incorporating vacuum ball milling

Magnesium alloys have poor strength and wear resistance, restricting their application greatly, while Mg matrix composites can improve these deficiencies. TiB2/AZ91 composites with high TiB2 content were prepared by vacuum hot-press sintering process incorporating vacuum ball milling. The effects of TiB2 content on the microstructure, mechanical properties and tribological properties of the composites were investigated in detail. The results suggested that the TiB2 particle exhibited good bonding with the Mg matrix. With the increasing TiB2 content, the ultimate tensile strength, yield strength and elongation of TiB2/AZ91 composites firstly increased and then decreased, while the wear rate and wear surface roughness presented an opposite trend, and the hardness and coefficient of friction gradually increased. The composites with 5 wt% TiB2 obtained the maximum tensile properties (UTS: 234 MPa YS: 91 MPa EL: 7.3 %). This improvement in mechanical properties was attributed to the uniform distribution of TiB2 particles and the well bonding at the interface. The strengthening mechanisms were found to be the load transfer strengthening and the thermal mismatch strengthening. Furthermore, the composites with 15 wt% TiB2 demonstrated the lowest wear rate of 1.06×10−6 mm3/Nm and lowest wear surface roughness of 2.971 μm. This wear resistance was enhanced because of the significant increasing in hardness. The dominant wear mechanisms observed in TiB2/AZ91 composites were abrasive wear and oxidation wear.

Revealing the phase-interface properties of the TiB2/TiAl composite from a first principles calculations

Revealing the interfacial properties of TiB2/TiAl composites is essential for understanding the mechanism for TiAl alloys reinforced by ceramic particles of TiB2. In this work, the interfacial properties of TiB2/TiAl composites are comprehensively investigated from an atomic point of view. Two different surface terminations of TiB2, and six different atomic stacks of TiAl were considered, resulting in the modeling of twelve different TiB2(0001)/TiAl(111) interfaces. The adhesion, fracture toughness, electronic properties of TiB2(0001)/TiAl(111) interfaces were calculated using first principles based on the density functional theory. The results of work of adhesion calculation showed that the Ti-fcc-hollow-cba interfacial model had the highest interfacial bond strength. Interfacial fracture toughness results indicated that mechanical failure generally occurred in TiAl, but not at the interface and in TiB2. The electronic structure of the interfacial model was analyzed to show that the Ti-terminated interface model was mainly combined through covalent bonds, ionic bonds and metallic bonds; the B-terminated interface model was mainly combined through ionic bonds and covalent bonds.

Significant Microstructure Refinement and Improved Mechanical Properties of Mg2Si/Al Composites Induced by Nanoscale TiB2 Particles

Significant Microstructure Refinement and Improved Mechanical Properties of Mg2Si/Al Composites Induced by Nanoscale TiB2 Particles

Defects, organization, and properties of TiB2–TiC Bi-ceramic phase by laser cladding in situ synthesis

An enhanced Ni50A composite coating was formed on the AISI 1045 steel surface using Ti, B4C, and Ni50A powders. The work meticulously examined the effects of various process parameters, including laser power (800, 1200, and 1600 W) and scanning speed (4, 6, and 8 mm/s), as well as different Ti/B4C powder ratios (2:1, 3:1, and 4:1, mol.%) on the defect, hardness, wear resistance, and corrosion resistance of the coating. The microstructure of the coating showed that TiB2 and TiC synthesized in situ were the key phases for coating enhancement, and there were a variety of solid solutions (FeNi3 and Cr2Ni3). TiB2 particles showed dark gray hexagons and long rectangular blocks. The TiC particles mainly appeared in light gray dendritic shapes, occasionally petal-shaped and equiaxial forms, and grew around TiB2. The research results showed that increased laser power and the Ti/B4C ratio decreased coating hardness and wear resistance. When the scanning speed increased, the hardness and wear resistance of the coating were significantly improved. The main wear mechanisms of the TiB2–TiC ceramic phase coating were oxidative wear and abrasive particle wear. Besides, the higher laser power and Ti/B4C ratio reduced the defect rate of the coating and enhanced the corrosion resistance. However, as the scanning speed increased, the defect rate increased, which decreased the corrosion resistance of the coating. The comprehensive performance evaluation showed that under the conditions of the laser power of 1200 W, a scanning speed of 8 mm/s, and a Ti/B4C ratio of 4:1, the coating exhibited optimal performance (dilution rate = 10.928±0.090%, defect rate = 8.657±0.128%, hardness = 63.300±1.159 HRC, wear volume = 0.0149±0.000100 mm3, Ecorr = −0.565±0.001 V, Icorr = 1.058E−06±1.528E−09A⋅cm2). The results provide an important basis for research on the high-quality and efficient strengthening technology and performance of refractory alloys.

Characterization of Cr-TiB2 composite coating on AISI 1045 steel using hybrid deep neural network-based sandpiper optimization algorithm

The scope of this study is to enhance the performance of AISI 1045 steel for demanding marine applications like connecting rods, axles, and wear-resistant components. Traditional heat treatment methods, including boriding, surface induction hardening, and tempering, improve the steel’s surface hardness. Additionally, the Tungsten Inert Gas (TIG) coating process develops a novel Cr- TiB2 composite coating on the heat-treated AISI 1045 stainless steel. The investigation explores the influence of varying TiB2 content (10%, 20%, and 30%) on the mechanical properties of AISI 1045 steel. Microhardness and tensile characteristics are analyzed, considering the impact of TiB2 percentage. Surface morphology and interfacial bonding are examined using Scanning Electron Microscope (SEM) and Energy Dispersive X-Ray Analysis (EDAX). Results reveal notable improvements, including a 2.65 times increase in microhardness compared to untreated AISI 1045 steel, uniform TiB2 distribution, and a crack-free coating. The addition of TiB2 particles in the Cr- TiB2 composite coating enhances microhardness. Improved mechanical properties are attributed to surface treatments, incorporation of hard and wear-resistant materials (Cr and TiB2) in the composite coating, microstructure modifications, and crack prevention, collectively resulting in increased hardness, wear resistance, and durability. Furthermore, this study introduces a novel hybrid Deep Neural Network-based Sandpiper Optimization Algorithm (DNN-SOA) for predicting experimental outcomes with superior accuracy. This research not only enhances the understanding of the coated steel’s mechanical properties but also presents an innovative predictive model for future material engineering applications, demonstrating the significance of advanced heat treatment and a novel composite coating in improving AISI 1045 steel performance.

Effect of TiB2 particles on dynamic recrystallization in TiB2-reinforced Al–Zn–Mg–Cu–Zr during hot compression

We investigated the microstructure evolution of a 6 wt% TiB2-reinforced Al–Zn–Mg–Cu–Zr composite subjected to hot compression at temperatures within the range 370 °C–490 °C, at strain rates between 0.001 s−1 and 10 s−1. The microstructure evolution was characterized by electron backscatter diffraction and transmission electron microscopy. Dynamic recovery and dynamic recrystallization mechanisms were analyzed, with a focus on nucleation at original grain boundaries and TiB2 particles. The results show that recovery is the main dynamic softening mechanism due to the high dislocation mobility in the Al matrix. However, low temperature and high strain rate results in a large number of small recrystallized grains, whereas high temperature and low strain rate results in a few large recrystallized grains. Dynamic recrystallization is mainly attributed to particle-stimulated nucleation occurring near TiB2 particles/clusters, especially TiB2 particles/clusters at grain boundaries. Relations between the observed dynamic recrystallization and the Zener-Hollomon parameter are discussed.

Microstructure and properties of TiB2/Cu composite coating with multi-layer structure prepared by electrodeposition

In order to improve the hardness of the copper surface, reduce its friction coefficient, and adjust the overall performance of the coating, a TiB2/Cu composite coating with multilayer structure was prepared by electrodeposition. The microstructure of the composite coating was analyzed by SEM and XRD. The microhardness and friction characteristics of the coating were tested, and the differences in the microstructures and properties of different coating structures were analyzed. Microstructure coatings with two layers (Cu + TiB2/Cu) and three layers (Cu + TiB2/Cu + Cu) were prepared on the copper substrate by electrodeposition. The TiB2 particles reduced the deposition rate of the TiB2/Cu composite coating by electrodeposition, by up to 29%. The TiB2 particles in the electrolyte increased the discharge voltage of the electrodeposition process. The content of TiB2 affected the microhardness, friction, and wear properties of the TiB2/Cu composite coating. The TiB2 particles increased the microhardness of the TiB2/Cu composite coating by 61%. The multilayer-structured coating prepared by electrodeposition could control the overall properties of the coating. The microhardness and friction coefficient of the TiB2/Cu + Cu coating were between those of the Cu and TiB2/Cu composite coatings.

Corrosion and erosion behaviour of TiC-TiB2 reinforced epoxy coatings

ABSTRACT This research investigates the impact of incorporating titanium carbide (TiC) and titanium diboride (TiB2) particles into epoxy coatings to enhance corrosion and erosion resistance. The targeted particles were synthesised by subjecting boron and titanium carbide powders to mechanical alloying for a duration of 20 hours. X-ray diffraction (XRD) analysis confirmed the successful formation of titanium diboride and titanium carbide particles. Subsequently, ceramic particles were integrated into the epoxy at concentrations of 0, 5, 10, and 15 wt.%, and the resultant coatings were applied to steel samples through an immersion method. Electrochemical impedance spectroscopy tests on the samples demonstrated a positive influence of TiC + TiB2 particles on enhancing the corrosion resistance of the coatings, with the 15 wt.% concentration exhibiting superior corrosion resistance compared to other formulations. Employing the Box–Behnken method, 13 samples were designed and subjected to erosion testing. The findings revealed that the coating containing 15 wt.% TiC + TiB2 particles exhibited the lowest erosion rate. Moreover, an increase in the speed and angle during the erosion test correlated with a rise in the erosion rate.

Influence of Borides on microstructure and mechanical properties of a Ni alloy

Abstract Ni alloys are known to exhibit superior creep strength, chemical stability, and thermal resistance behavior at elevated temperatures. However, they also exhibit inadequate mechanical performance. Hence, the microstructures and, in relation to that, mechanical properties need to be improved. In this study, the effect of reinforcement of TiB2 on microstructural and mechanical properties was evaluated. The Ni matrix is reinforced with TiB2 particles. TiB2–Ni composites were successfully produced by the hot pressing method. Homogenously distributed TiB2 particles were observed in the microstructure using the energy dispersive spectrometry (EDS) mapping technique. The hardness of the reinforced samples was considerably improved by 2.65–8.12 times compared to pure Ni and between the different content of borides. A three-point bending test was performed to examine the mechanical behaviors of the reinforced composites. The bending stress properties of metal matrix composite (MMC) were significantly influenced by TiB2 content both positively and adversely. The optimum chemical content was determined based on bending tests and fractography. As a result, the 15 wt.% TiB2-reinforced sample exhibited superior microstructural (density), hardness, and bending properties compared to pure Ni and other reinforced samples with different ratios.