Comparison of effect of SiC and MoS2 on wear behavior of Al matrix composites

Rouhi, Mohammad; Moazami-Goudarzi, Mohammad; Ardestani, Mohammad

doi:10.1016/s1003-6326(19)65025-9

Cited by 64 publications

(18 citation statements)

References 37 publications

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“…While under oil lubrication condition, it can be seen that the worn surfaces of the two materials are smooth, exhibiting shallow parallel grooves, indicating of the mild abrasive wear mechanism. 32,33 For further exploration of the friction and wear mechanism, three-dimensional laser scanning images of the worn surface with height difference of the Al7075 alloy and 15 wt% VN/7075 composite under different working conditions were tested by Color 3D Laser Microscope VK-9710K. The results show that surface roughness of Al7075 alloy is greater than 15 wt% VN/7075 composite under any working condition, which proves that the VN addition can improve the wear resistance of the material.…”

Section: Resultsmentioning

confidence: 99%

Tribofilm formation on the VN/7075 composite surface under sulfur-containing boundary lubrication

Bai

Liu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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In this paper, Al7075 alloy and 15 wt% VN/7075 composite were prepared by ball milling and hot-press sintering. The microstructure, hardness, and wear behavior under different working conditions (environmental condition: dry friction, sulfur-containing boundary lubrication, and oil lubrication) were studied. The results showed that the distribution of VN was dispersive and uniform in 15 wt% VN/7075 composite without obvious agglomeration. The hardness (119.5 Hv) of 15 wt% VN/7075 composite was 46.1% higher than the Al7075 alloy (81.8 Hv). Friction and wear behavior test results showed that under sulfur-containing boundary lubrication condition, according to the tribofilm layer on the worn surface of 15 wt% VN/7075 composite, the friction coefficient of 15 wt% VN/7075 composite decreased by 37.6% compared with the Al7075 alloy. The main wear mechanism of 15 wt% VN/7075 composite was delamination wear and abrasive wear under dry friction, while under sulfur-containing boundary lubrication and oil lubrication, it changed to mild abrasive wear.

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Section: Resultsmentioning

confidence: 99%

Tribofilm formation on the VN/7075 composite surface under sulfur-containing boundary lubrication

Bai

Liu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…The layered structure of molybdenum disulfide (MoS 2 ) determines its unique antifriction properties and enables its efficient application as a solid lubricant [ 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. Zalaznik et al [ 18 ] studied the effect of types, sizes, and contents of solid lubricant particles on the tribological properties of the PEEK-based composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of Various Type of Nanoparticles on Mechanical and Tribological Properties of Wear-Resistant PEEK + PTFE-Based Composites

et al. 2021

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The mechanical and tribological properties of polyetheretherketone (PEEK)- and PEEK + PTFE (polytetrafluoroethylene)-based composites loaded with and four types of nanoparticles (carbonaceous, metallic, bimetal oxide, and ceramic) under metal- and ceramic-polymer tribological contact conditions were investigated. It was found that loading with the nanofillers in a small content (0.3 wt.%) enabled improvement of the elastic modulus of the PEEK-based composites by 10–15%. In the metal–polymer tribological contact, wear resistance of all nanocomposites was increased by 1.5–2.3 times. In the ceramic-polymer tribological contact, loading PEEK with metal nanoparticles caused the intensification of oxidation processes, the microabrasive counterpart wear, and a multiple increase in the wear rate of the composites. The three component “PEEK/10PTFE/0.3 nanofillers” composites provided an increase in wear resistance, up to 22 times, for the metal–polymer tribological contact and up to 12 times for the ceramic-polymer one (with a slight decrease in the mechanical properties) compared to that of neat PEEK. In all cases, this was achieved by the polymer transfer film formation and adherence on the counterparts. The various effects of the four types of nanoparticles on wear resistance were determined by their ability to fix the PTFE-containing transfer film on the counterpart surfaces.

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“…Aluminum matrix composites reinforced with SiC particles (Al/SiCp) have high tribological properties [15][16][17][18][19][20][21][22]. However, it is known that from 667 to 1347 • C, Al and SiC react and form Al 4 C 3 and Si [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Additively Manufactured Al/SiC Cylindrical Structures by Laser Metal Deposition

et al. 2020

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Preliminary characterization of the microstructure of Al/SiCp composites prepared by Laser Metal Deposition (LMD) was analyzed, and the microhardness and wear behavior of the materials manufactured have been evaluated. It has been determined that the combined effect of the laser speed and power is decisive for the fabrication process. The microstructure characterization shows that the presence of hygroscopic Al4C3 can be avoided by adding Ti to the composite matrix. The wear behavior of the LMD samples and their microhardness have been compared with Powder Metallurgy samples with the same composition. The LMD samples showed higher hardness and wear resistance.

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Comparison of effect of SiC and MoS2 on wear behavior of Al matrix composites

Cited by 64 publications

References 37 publications

Tribofilm formation on the VN/7075 composite surface under sulfur-containing boundary lubrication

Tribofilm formation on the VN/7075 composite surface under sulfur-containing boundary lubrication

Effect of Various Type of Nanoparticles on Mechanical and Tribological Properties of Wear-Resistant PEEK + PTFE-Based Composites

Additively Manufactured Al/SiC Cylindrical Structures by Laser Metal Deposition

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