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of temperature change on the dry sliding friction and wear characteristics of as-cast SiCp/A356 composite was investigated on UMT-2 tribometer by using Al2O3 ceramic ball as dual material. The high...(6): 1259-1264. [8] LENG L F, JIANG L T, WU G H, TIAN Shou-fu, CHEN Guo-qin. Effect of graphite particle reinforcement on dry sliding wear of SiC/Gr/Al composites[J]. Rare Metal Materials......
) with energy dis-persive spectrometer (EDS). 2.3 Friction and wear test Sliding friction tests were conducted with substrate and W-C duplex-treated samples using HT-500 ball-on- disk tribometer in air at high temperature of (500±4) ℃ and relative humidity of (45±5)% under dry sliding condition. Silicon nitride (Si3N4) balls with the average hardness of HRC77 and a diameter of 3 mm were used......
-bearing capacity and wear resistance of the intermetallics, as evidenced by an increase of scuffing load up to 4 times and a wear rate reduction of two orders of magnitude. The coefficient of friction has also been reduced from 0.5-0.7 for the untreated to an average of 0.22 for the CC-treated alloy under dry sliding contact conditions. 关键词:titanium aluminides; wear resistance; sliding wear......
Influence of graphite content on sliding wear characteristics of CNTs-Ag-G electrical contact materials WANG Juan(王 娟), FENG Yi(凤 仪), LI Shu (李 庶), LIN Shen(林 森) Department of Materials Science... much softer. During wear process, the hard protruding point of the ring presses into the brush, and the plastic deformation along the sliding direction occurs on the worn surfaces so that the naked......
Dry Sliding Tribological Properties of a Dendrite-reinforced Zr-based Bulk Metallic Glass Matrix CompositeHuijun Yang1,2,Yong Liu1,Teng Zhang1,Hengpeng Wang1,Bin Tang1,Junwei Qiao21. Research..., the friction coefficient and wear rate of composites initially decreased with the increase in the sliding velocity and reached a minimum of 0.330 and 2.389 10 4mm3/(N m) at0.4 m/s and 0.3 m/s......
of the obtained coatings were examined by SEM and XRD, and the corrosion and dry sliding wear properties of the coatings were also evaluated. The results show that the main spectral lines detected during the PEO... coefficient of about 0.2 for the inner layer, demonstrating its potential application values. Key words: Ti-6Al-4V alloy; plasma electrolytic oxidation; corrosion; dry sliding wear 钛及钛合金具有优良的综合性能,在航空航天,航海......
Trans. Nonferrous Met. Soc. China 26(2016) 1801-1808 Effect of SiC content on dry sliding wear, corrosion and corrosive wear of Al/SiC nanocomposites Sareh MOSLEH-SHIRAZI1, Farshad AKHLAGHI1, Dong..., University of Alberta, Edmonton, Alberta T6G 2V4, Canada Received 8 April 2015; accepted 2 February 2016 Abstract: The corrosion, corrosive wear and dry sliding wear of nanocomposites, are extremely......
under different dry reciprocating sliding conditions at room temperature. A wide range of normal loads and sliding speeds were chosen to investigate the relationship between the wear mechanisms of MZA... to 0.1m/s. 4 CONCLUSIONS The friction and wear behavior of MZA composites sliding against GCr15 steels in a ball-on-disc contact under dry reciprocal sliding mode was studied as a function......
, tungstates and sulfides residue on the worn surface. Key words: Ni-based alloys; powder metallurgy; wear mechanism; tribological behavior; dry friction behaviors of the alloys as well as the wear mechanism at room temperature, 200 ℃ and 600 ℃ were studied. 2 Experimental 2.1 Material......
detected by Vickers hardness tester, profilometer, scanning electric microscope (SEM), energy dispersive X-ray spectrometer (EDX) and X-ray diffractometer (XRD). Fretting wear behaviors of the coating... been studied by some scholars under dry and solid lubrication sliding condition[13-15]. However, almost all researches focused on the conditions of reciprocating and pin-on-disk sliding and discussions......