High Temperature Wear Behavior Research Articles

Green synthesis of ZrO2 nanoparticles by Phyllanthus niruri extract and its tensile and high temperature wear behaviour of Al2017A/hBN composites

Green synthesis of ZrO2 nanoparticles by Phyllanthus niruri extract and its tensile and high temperature wear behaviour of Al2017A/hBN composites

High-temperature wear and oxidation behavior of (CrNbTaMoVW)N high entropy films deposited by reactive magnetron sputtering

Rapid advancements in industrial technology necessitate mechanical parts capable of operating at high temperatures. High entropy alloy films have emerged as promising material for high-temperature resistant coatings, providing improved friction control and wear reduction. In this study, (CrNbTaMoVW)N high-entropy films were fabricated on YG6 cemented carbide substrates using reactive DC magnetron sputtering. The oxidation and tribological performance of the films were investigated across a temperature range from room temperature to 800 °C. Oxidation results revealed that (CrNbTaMoVW)N film maintained its simple Face-Centered Cubic (FCC) structure up to 600 °C for 3 h in the presence of air. At 800 °C, complete oxidation occurred, resulting in the formation of complex metal oxides and metal oxynitrides, and a structural transformation from FCC to these compounds. Following oxidation at 600 °C for 3 h, High-Entropy Alloy (HEA) film exhibited the maximum values of hardness (30.6 GPa) and modulus (301.7 GPa). Tribological results demonstrated an increase in both friction coefficient and wear rate with rising test temperature. However, (CrNbTaMoVW)N film showed a relatively low wear rate ranging from room temperature to 600 °C, approximately 10−15 m3/N•m, thus indicating excellent high-temperature tribological properties. Notably, the wear resistance of (CrNbTaMoVW)N film was significantly compromised at 800 °C due to the formation of loosely bonded metal oxides with reduced hardness, in contrast to the test temperature of 600 °C.

Microstructure and high temperature wear behavior of in-situ synthesized carbides reinforced Mo-based coating by laser cladding

To broaden the application fields of Mo coating as wear resistant coatings for hot-end components in jet engines, the in-situ synthesized carbides reinforced Mo-based coatings were prepared by laser cladding. The effect of nickel-coated graphite (carbon source) on the microstructure, hardness and elevated-temperature wear behavior of coatings was studied. The wear behavior of coatings was evaluated by using a tribotester with a ball-on-disc configuration from room temperature to 1000 °C against Si3N4 ball in air. The results showed that the carbides played a role of dispersion-strengthening. The coatings were composed of Mo, Cr1.12Ni2.88, Cr9Mo21Ni20, Mo2C, Cr7C3 and Mo6Ni6C. The wear resistance of the laser clad coatings was significantly enhanced by the addition of nickel-coated graphite, and the wear rates firstly decreased and then increased with increasing graphite content. The friction coefficients of laser clad coatings increased with an increase in nickel-coated graphite content. There existed a critical content of nickel-coated graphite that best strengthened the tribological behavior from room temperature to 1000 °C. The coating with 6.0 wt% nickel-coated graphite exhibited favorable tribological properties due to the moderate ductility, carbides, lubricating layer and in-situ synthesized solid lubricants.

Phase evolution and high-temperature wear behavior of non-equiatomic metastable CoCrNiTiMox HEA coatings fabricated by high-velocity oxy-fuel technique

The current research aims to enhance the tribological performance of maraging steels at high temperatures by surface modification techniques. CoCrNiTiMox (x; molar fraction, x = 0.5, 1.5) high-entropy alloy (HEA) coatings with dense lamellar microstructures were deposited onto maraging steels using high-velocity oxy-fuel spray (HVOF). In order to achieve a uniform distribution of constituent elements for thermal spray deposition, mechanical alloying was employed to synthesize the HEA feedstock. The phases and microstructure of the synthesized HEA powder, as-sprayed coatings, and worn surfaces were examined using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The as-sprayed HEA coatings exhibited metastability, with a BCC phase solid solution, NiTiO3 spinel, and an intermetallic MoNi phase for CoCrNiTiMo0.5 and Co2Mo3 phase for CoCrNiTiMo1.5. The average microhardness of CoCrNiTiMo0.5 and CoCrNiTiMo1.5 HEA coatings were 841 ± 62 HV0.3 and 952 ± 23 HV0.3, respectively. The specific wear rate and friction coefficients of CoCrNiTiMox HEA coatings exhibited a decreasing trend with an increase in temperature, owing to the formation of tribofilms on the worn surface. X-ray diffraction studies revealed the formation of NiMoO4 spinel for CoCrNiTiMo0.5 and MoO2, Co3O4 phases for CoCrNiTiMo1.5 HEA at a wear temperature of 600 °C. The investigation of worn surfaces showed a transformation in wear mechanisms from abrasive wear at room temperature to oxidative wear with mild fatigue at elevated temperatures.

High-temperature wear behavior of a Zr-based metallic glass

Due to the fascinating application prospects of Zr-based bulk metallic glass (BMG), it is of practical engineering interest to study its wear behavior and mechanism under various temperature conditions. In this work, the wear behavior and mechanism of a commercially available Zr35Ti30Be26.75Cu8.25 BMG at room temperature (RT) to 500 °C were investigated. The results demonstrated that the wear rate increased from ∼24.7 × 10−5 mm3 N−1 m−1 to ∼196.8 × 10−5 mm3 N−1 m−1 as the temperature increased from RT to 500 °C. Accordingly, the coefficient of friction (COF) is reduced from an average of 0.45–0.18 due to the lubricating effect of the oxide layer. At low temperatures of RT and 200 °C, the predominant wear mechanisms are abrasive wear and adhesive wear. However, in the supercooled liquid region (SCLR) of at 350 °C, the dominant wear mechanism is a combination of superplasticity-dominated abrasive wear, severe fatigue wear, and slight oxidative wear. Above the crystallization temperature (Tx) at 500 °C, the primary wear mechanisms are severe abrasive wear and oxidative wear. Our results can provide important guidance for determining the applicable temperature, service life and failure mode of BMG components.

Effect of Molybdenum Contents on Microstructure and High-Temperature Wear Behavior of SiMo Ductile Iron

High-silicon and molybdenum (SiMo) ductile iron is a common heat-resistant alloy that may be exposed to high-temperature wear during service in many of its applications. The wear behavior of four SiMo ductile iron alloys was evaluated at different temperatures up to 750 °C. This research focuses on the influence of various Mo contents on the microstructure, structural stability, and hence, the wear performance of such alloys. Thermodynamic calculations proposed the phase diagrams, critical transformation temperatures, and phase volume fractions in all samples by means of Thermo-Calc software. The dilatometry measurements were carried for confirming the theoretical results of Thermo-Calc thermodynamic calculations. The results revealed that the microstructure of SiMo ductile cast iron consists of nodular graphite and a ferrite matrix with carbides embedded in the fine precipitates at the grain boundary regions. The type of carbides and the nature of these fine precipitates are discussed according to EDX and SEM results. Adding molybdenum enhanced the wear performance of SiMo by decreasing the weight loss by about 40–70% compared to a Mo-free alloy. This is due to the increased molybdenum carbides, which increase hardness and improve wear resistance in SiMo alloys. The high temperatures have a negative effect on reducing the wear resistance at 250 °C. On the other hand, the wear resistance unexpectedly started to increase at higher temperatures of 500 °C and 750 °C because of the contribution of oxidative wear with abrasive wear by forming a protective oxide layer. Furthermore, the obtained results supported the idea that adding molybdenum improves wear resistance at high temperatures. Hence, SiMo has the potential to be wear-resistant material in wider applications requiring high-temperature wear resistance.

High-temperature wear behavior of Tribaloy 400 deposited 17-4 PH stainless steel using spark plasma sintering

Surface modification techniques are extensively utilized to improve the performance of the engineering components in their service life when exposed to elevated temperatures. Herein, the Tribaloy 400 (T 400) particles were deposited on the 17-4 PH stainless steel through the spark plasma sintering (SPS) technique to improve the high-temperature wear resistance of exhaust valve components which are typically manufactured using 17-4 PH stainless steel. The identification of phases, microstructure and the morphology of phases in the coatings, elemental composition and distribution, interfacial behavior, and defects like porosities were investigated using advanced characterization techniques. The obtained results revealed the presence of FCC and HCP – Co along with 52 vol% of laves phases (CoMoSi). The presence of laves phases in the Co matrix, fine grained structure and superior interfacial bond strength were promoted the hardness of the coating (~885 HV) than the substrate (~363 HV). The ball-on-disc wear studies were carried out using alumina balls as counter material at room temperature and high temperature (650 °C). The T 400 coating specimen provided better wear properties than the substrate at both temperature. The specific wear rate obtained for the T 400 coated specimen and 17-4PH substrate at room temperature was found to be 1.29 × 10−5 mm3/Nm and 120 × 10−5 mm3/Nm, whereas at 650 °C, it was found to be 0.037 × 10−5 mm3/Nm and 10.26 × 10−5 mm3/Nm, respectively. In T 400 coating, the developed transparent oxide film at 650 °C decreased the possibilities for metal-to-metal contact between the specimen and the counterpart.

High temperature friction and wear of post-machined additively manufactured tool steel during sliding against AlSi-coated boron steel

In recent years, additive manufacturing (AM) of metallic materials has achieved the production of virtually fully dense parts, extending the range of potential applications. There is a growing interest in the use of AM to produce forming tools for hot stamping. The possibilities of locally tailoring the die material to tackle wear challenges and producing more complex geometries to improve die cooling are key-features driving that interest. However, there is a lack of knowledge concerning the tribological behavior of AM materials, particularly at high temperature, as well as the influence surface finishing processes after additive manufacturing. The aim of this study is to investigate the high temperature friction and wear behavior of a tool steel, produced by selective laser melting, within the context of hot forming of AlSi-coated boron steel. A high temperature strip drawing tribometer was used to perform sliding tests at 600 °C and 700 °C. Three different surface finishes were used for the AM samples: ground, milled and shot-blasted. A conventionally produced steel with the same chemical composition and a ground surface finish was used as a reference. At 600 °C, a similar stable coefficient of friction of 0.4 was observed for both materials and all surface topographies. At 700 °C, all tests resulted in a sudden increase in friction up to 0.9 due to local rupture of the AlSi-coating, severe material transfer and ploughing. The wear mechanisms observed for the ground surfaces, both AM and reference tool steel, were a combination of adhesive material transfer and abrasive material removal that promotes material pile-up, resulting in wedge formation on the tool steel surface. The characteristic wedge formation was not common in the milled surface. This is attributed to strain-hardening and topographical features from the finishing process. For the shot-blasted AM surface, deformation and flattening of the large asperities was observed, as well as material transfer. Subsurface deformation associated with high adhesion during sliding was observed, mainly for the ground surfaces. The milled surface resulted in the least amount of tool steel transfer onto the counter body, while the shot-blasted one resulted in the largest amount. AM and reference ground tool steel showed very similar friction and wear behavior in this tribosystem.

High temperature wear behavior of NiCoCrAlY-Cr2O3-AgMo coating on GH4169 superalloy

In order to determine the possible application of NiCoCrAlY-Cr2O3-AgMo (NCA) coating for the finger seal used in aeroengine, the microstructure and wear behavior against GH605 counterbody of NCA coating at 400 ℃, 500 ℃ and 600 ℃ were studied. The experimental results indicate that NCA coating exhibited low coefficient of friction (COF) and good wear resistance at high temperatures. The COF of NCA coating decreased with raising temperature and the average COF was 0.268 at 600 ℃. Wear rates of both GH605 pin and NCA coating at 600 ℃ were much lower compared to those at 400 ℃ and 500 ℃. It was found that NiMoO4 and MoO3 as effective lubricants formed a lubricant film on the worn surface of the coating at 600 ℃, which improved the tribological properties of NCA coating. In view of the excellent tribological properties of NCA coating at high temperatures, especially at 600 ℃ which is the most common operating temperature of the finger seal used in aeroengine, it is preliminarily determined that NCA coating has a possible application for the finger seal of aeroengine.

High-temperature wear behavior of HVOF sprayed, laser glazed, and laser cladded Stellite 6 coatings on stainless steel substrate

In this study, the Stellite 6 coating was applied on 316 stainless steel substrates through the high-velocity oxygen fuel method (ST-HVOF). Then, the laser-glazed sample (ST-Glazing) was deposited on the as-sprayed Stellite 6 coating using optimal conditions. Afterward, the Stellite 6 powder was optimized on the stainless-steel substrate by laser cladding process (ST-Clad) using 300 W and 5 mm/s of laser power and beam scanning speed, respectively. The microstructural characterization and phase analysis of ST-HVOF, ST-Clad, and ST-Glazing coatings were performed by field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD) techniques. The microscopic observation results revealed that laser glazing significantly decreased the porosity of ST-HVOF (from about 2.3% to about 0.3%) and formed a dense coating with a uniform microstructure and strong adhesion to the substrate. Also, ST-Clad coating showed a porosity of 0.2% and a compact and uniform microstructure with a high-strength bonding to the substrate. Tribological evaluation of the coatings indicated a 67% and 58% increase in wear resistance of ST-Clad and ST-Glazing coatings compared to ST-HVOF coating, respectively. The high-temperature wear results suggested the following mechanisms for the studied coatings: plastic deformation mechanisms, wear adhesion, brittle fracture, and delamination.

Sliding wear behaviors of the AlNiTi amorphous coatings: effect of temperatures

High-temperature wear behaviors are of prime importance for broadening the application guidelines of the Al-based amorphous coatings. For this objective, the effects of ambient temperatures on tribological behaviors of the AlNiTi amorphous coatings were investigated from room temperature (RT) to 450 °C. The results showed that the wear rate for the coating slid at 300 °C declines by two orders of magnitude in comparison to 2219-Al and 7075-Al alloys due to high hardness, strain tolerance, and elastic recovery capacity. With increasing temperatures, friction coefficients decrease steadily as a result of the oxide tribo-films formed on the wear track. However, there is an initial decrease in wear rate up to the temperature of 400 °C followed by a slight increase after the full devitrified temperature. The coating shows superior wear resistance at an elevated temperature of 400 °C because of the remained amorphous structure and intact protective oxide tribo-film. The wear mechanism of the coating transfers from brittle spalling coupled with oxidation wear to oxidative wear with increasing temperature up to 400 °C. After full devitrified temperature, the formation of deformed layers beneath oxide tribo-film aggravates marginally the wear of the coating. The synergistic effects of structure evolution, high-temperature hardness, and oxidization on tribological behaviors were discussed. These current findings provide insights into the real applications of the AlNiTi amorphous coating at evaluated temperatures.

The effect of ultrasonic power on high temperature wear and corrosion resistance for Ni based alloy composite coatings

TiO2-reinforced Ni-W co-depositions are successfully produced by ultrasonic-assisted pulse electrodeposition. The effect of ultrasonic powers and concentration of TiO2 on the surface morphology, surface roughness, nano-mechanical, anti-corrosion, high-temperature wear, and friction behavior of the Ni-W co-depositions were systematically investigated. The experimental results indicate that (1) there is an optimal incorporating amount (about 20 g L−1) of TiO2 in the plating bath and ultrasonic power (50 W) for achieving the highest high-temperature wear, corrosion resistance and excellent nanomechanical properties (hardness of ∼8 GPa and elastic modulus of ∼209 GPa), maximum TiO2 incorporation rate (24.4 wt% TiO2); (2) the composite coating refined the microstructure and reduced crystallite size of the coatings, and obtained dense microstructure. TiO2-reinforced Ni-W co-deposition produced by optimal conditions open up new avenues in alternative to hard chromium and is expected to be widely applied in defense industry, automobile and electronic systems.

High-temperature wear behaviour of plasma cladded WC/Ni60A composite coating on copper

With the aim of improving the surface properties of copper, WC/Ni60A composite coatings were successfully prepared by plasma cladding. A good metallurgical bonding was formed between composite coating and copper substrate. The large amount of dispersed WC and W2C phases in the coating significantly increased the microhardness (17 times that of the copper substrate). With the rise in temperature, the wear resistance of the coating first increased and then decreased. At 400°C, the coating had the best wear resistance due to the lubricating effect of the oxide layer. However, due to the simultaneous occurrence of various wear mechanisms, the wear resistance at 600°C was significantly reduced, so the service temperature must be controlled below 600°C.

High-temperature wear behaviour of ZrC/NbC-reinforced CrMnFeCoNi coatings

ABSTRACT Nowadays, studies of high entropy alloys (HEAs) have shown excellent properties. To improve the high-temperature wear resistance of CrMnFeCoNi alloy, refractory carbides (NbC and ZrC, respectively) reinforced CrMnFeCoNi composite coating were prepared by laser cladding (LC), and its wear performance was investigated. The composite coating showed no cracks or other defects that had metallurgical bonding with the substrate. Those coatings exhibited oxidative and adhesive wear mechanisms in reciprocating wear tests at 600°C. In contrast to the strengthening of NbC, the ZrC in the coating rapidly oxidized during high-temperature wear, forming a large amount of ZrO2. These oxides formed in wear promote the formation of a protective film, further improving the oxidation resistance and wear resistance of the coating.

Effect of boronizing on microstructure, high-temperature wear and corrosion behavior of additive manufactured Inconel 718

In this study, Ni-based Inconel 718 coatings were additively manufactured on the surface of AISI H13 work tool steel by electro-spark deposition (ESD). Some of the electro-spark deposited samples were boronized at 1000 °C for 5 h to evaluate the effects of boronizing on microstructure, high-temperature wear, and corrosion resistance. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), 2D profilometry, wear and electrochemical corrosion testing was used to characterize the surfaces, microstructures, microhardness, some mechanical properties, high-temperature wear, and corrosion resistance of the applied coatings. Wear tests were performed at room temperature and 650 °C, and corrosion tests were performed in 3.5% NaCl at room temperature, considering the applications of AISI H13 and Inconel 718 alloys. The characterization studies showed evidence of microcracking and oxidation in the as-deposited Inconel 178 coatings. In the boronized Inconel 718 coatings, the oxides and microcracks were slightly reduced. The hardness of the boronized Inconel 718 coating was increased to about four times the hardness of the as-deposited Inconel 718 coating, and this significantly improved its wear resistance. The highest wear resistance was achieved with the boronized coating, while the best corrosion resistance was obtained with the as-deposited coating. The improvements in wear resistance provided by boronizing have the potential for expanding the applications of Inconel 718 coatings in machine components. • AISI H13 tool-work steel exposed to combined electro-spark deposition and boronizing processes. • The microstructure, friction, wear and corrosion behaviors of different surfaces were compared and analyzed. • The irregularly shaped oxides and cracks in the ESD coatings were healed and the microstructure was refined by boronizing. • Electrospark deposition and boronizing improved corrosion and high-temperature wear resistance of AISI H13 steel. • Boronizing offers an alternative to laser surface modifications in improving the mechanical properties of ESD coatings.

High temperature wear behavior of Ni-rich NiTi-based alloys

Ni-rich NiTi-based alloys have been regarded as promising candidates for tribological applications because of their high hardness and excellent corrosion resistance. In this work, the effects of aging and Hf addition on microstructure and unlubricated wear properties of Ni-rich NiTi alloys, Ni55Ti45 and Ni55Ti40Hf5 alloys, were investigated. Both the aging and addition of Hf increase the microhardness of Ni55Ti45 alloy. The aged Ni55Ti40Hf5 alloy shows the largest value of microhardness resulting from the combination of the precipitation strengthening of Ti3Ni4 and H phases, and the solid-solution strengthening of Hf atom. The wear resistance of the studied alloys can be improved by the aging and Hf addition. The coefficient of friction values obtained at 400 °C are lower than that obtained at room temperature. Among the studied alloys, the aged Ni55Ti40Hf5 alloy shows the lowest coefficient of friction. The studied alloys show the same wear mechanisms, i.e. abrasive and oxidative wear at 400 °C.

High-temperature wear mechanisms of TiNbWN films: Role of nanocrystalline oxides formation

Refractory high/medium entropy nitrides (HENs/MENs) exhibit comprehensive application prospects as protective films on mechanical parts, particularly those subjected to sliding contacts at elevated temperatures. In this study, a new MEN system TiNbWN, forming a single fcc solution, is designed and its wear performance at temperatures ranging from 25 to 750 °C is explored. The wear mechanisms can be rationalized by examining the subsurface microstructural evolutions using the transmission electron microscopy as well as calculating the phase diagrams and interfacial adhesion behavior employing calculation of phase diagram (CALPHAD) and density functional theory (DFT). To be specific, increased wear losses occur in a temperature range of 25–600 °C, being predominantly caused by the thermally-induced hardness degradation; whereas at the ultimate temperature (750 °C), the wear loss is refrained due to the formation of nanocrystalline oxides (WnO3n−2, TiO2, and γTiOx), as synergistically revealed by microscopy and CALPHAD, which not only enhance the mechanical properties of the pristine nitride film, but also act as solid lubricants, reducing the interfacial adhesion. Thus, our work delineates the role of the in situ formed nanocrystalline oxides in the wear mechanism transition of TiNbWN thin films, which could shed light on the high-temperature wear behavior of refractory HEN/MEN films.

Investigation of the Effect of Rolling Speed on High Temperature Wear Behavior of Mg-2.5Al-1.0Sn-0.3Mn-0.4La-1.33Gd Mg Alloy

Bu çalışmanın amacı otomotiv ve uzay taşıtlarında kullanım potansiyeli yüksek olan hafif magnezyum (Mg) alaşımların yüksek sıcaklık aşınma davranışına farklı haddeleme hızlarının etkisini incelemektir. Sürtünme nedeniyle oluşan veya kullanım çevresine bağlı artan sıcaklığın aşınmaya maruz kalan fren balataları gibi uygulamalarda Mg alaşımın nasıl tepki verdiğini anlamak önem arz etmektedir. Yapısal olarak geliştirilmiş nadir toprak elementi içeren Mg alaşımları buna çözüm olarak düşünülmüştür. Burada yüksek sıcaklığa dayanımı zayıf olan ikincil fazlar yerine yapıda daha kararlı ikincil fazlar oluşturmak esas alınmıştır. Bu amaçla sıcak haddelenmiş Mg-2.5Al-1.0Sn-0.3Mn-0.4La-1.33Gd Mg alaşımına 225°C de aşınma testleri uygulanmıştır. 1.5, 4.7 ve 10 m/dk olmak üzere üç farklı hadde hızıyla elde edilen sac malzemelerin mikroyapısal karakterizasyonu ışık optik mikroskop (LOM) ve taramalı elektron mikroskobu (SEM) vasıtasıyla incelenmiştir. Hadde hızına bağlı ikizlenmeler ve yeniden kristalleşen taneler elde edilmiştir. Sıcak aşınma davranışının mikroyapıya bağlı olarak değiştiği ve oluşan sert ikincil fazların daha yumuşak olan matrisle birleşerek aşınma direncine katkı sağladığı anlaşılmıştır. Artan hadde hızına bağlı aşınma hızında düşüş meydana gelmiştir. 10m/dk ve 1.5m/dk hadde hızlarının aşınma hızları karşılaştırıldığında iki kattan daha fazla fark olduğu görülmüştür. Aşınma mekanizmaları incelenen aşınmış yüzeylerin plastik akma, adhezif ve plastik deformasyon türünde mekanizmalara sahip olduğu görülmüştür.

Influence of Temperature and Applied Load on Adhesion and Abrasion Wear Characteristics of Ti6Al4V Alloy

Over the last decade, research on high-temperature tribological characteristics of Ti6Al4V alloy has been gathered significant interest due to their sustainable properties in high-temperature applications. Adhesion and abrasion have been identified as the most prevalent wear mechanism in the tribological system operated under high temperatures. Hence, the present study aimed to investigate the high-temperature wear behavior of titanium alloys under a vacuum environment and various operating conditions in order to explore the formation of no-oxide tribo layers and the governing wear mechanisms. The transition of materials from both the worn surfaces (Pin and Disc) has been demonstrated. The microstructural characteristics of the worn surfaces and cross-sections revealed the formation of no-oxide tribo-layers which significantly influenced the wear rates as well as governed wear mechanisms. Due to the formation of no-oxide layers, the coefficient of friction was observed to increase with increasing the temperature and load.

Influences of Ag+LiAlO2 on mechanical and high temperature wear behavior of magnesium hybrid composites

The objective of this research is to analyze the mechanical such as porosity; hardness and high temperature wear behavior of Magnesium (MgZE41A) hybrid composites reinforced with Silver (Ag) and Lithium Aluminate (LiAlO2). The various wt. % such as Ag (1.0 & 1.5) and LiAlO2 (1.0 & 1.5) was reinforced in MgZE41A using Powder Metallurgy (P/M) technique. The sintered composites were characterized using Scanning Electron Microscope (SEM) coupled with Energy Dispersive Spectroscopy (EDS) line mapping Technique. The porosity and Vicker’s hardness of the samples were assessed. Further, the high temperature wear behavior of the composites was evaluated using tribometer with heater setup by varying the heat inputs such as 30°C, 50°C, 100°C, 150°C and 200°C. The results revealed that increasing the wt. % of Ag and LiAlO2 led to decrease the porosity from 0.11 % to 0.09 % due to high compacting pressure and sintering temperature. High temperature Wear rate of the composites was reduced from 2.15 * 10-4 to 0.83 * 10-4 because of wt. % of reinforcement, high compacting pressure and better sintering temperature.