Effect of Chromium Alloying on Tribological Properties of Molybdenum Disulfide/Copper Composites and Its Mechanism
Based on the strategy of chromium alloying of copper matrix,the effect of chromium content on the tribological properties of molybdenum disulfide/copper composites in nitrogen atmosphere was studied.The results indicate that,1.5wt%chromium is added to the composite,with a friction coefficient as low as 0.07 and the specific wear rate is 2.4×10-4 mm3·N-1·m-1,which is only 64%and 20%of the composite without chromium,respectively.The interface structure,the friction layer composition and the grinding subsurface morphology are analyzed by TEM,X-ray optoelectronic energy spectrum and SEM respectively,and the mechanism of action of molybdenum/copper composite is revealed.
NETL
NSTL
万方数据
