Tribological property of c-axis textured shell-like Ti3AlC2 ceramic was investigated using reciprocating sliding balls (SUS304) under loads of 1,5,and 9 N.It was found that the textured top surface (TTS),corresponding...Tribological property of c-axis textured shell-like Ti3AlC2 ceramic was investigated using reciprocating sliding balls (SUS304) under loads of 1,5,and 9 N.It was found that the textured top surface (TTS),corresponding to the (000l) plane,shows the lowest mean coefficient of friction in comparison with those measured on the textured side surface (TSS),where the sliding directions are parallel (TSS-1) and perpendicular (TSS-2) to c axis,under the same load.Among all the tested orientations,the TSS-2 exhibited the lowest wear rate of 1.51 × 10-3 mm3/(N·m) under the load of 9 N.The worn mechanisms on the TTS and TSS-1 were delamination,grain fracture,and grain spalling-off.On the TSS-2,plowing effect against balls was the dominating mechanism.This work suggests the criteria to maximize the wear resistance in the load range of 1-9 N.展开更多
基金'ChuYing' Program of Southwest Jiaotong University and Thousand Talents Program of Sichuan Province.Also,we thank for the supports of National Natural Science Foundation of China，Grant-in-Aid for Scientific Research B (No.23350104) from Japan Society for the Promotion Science,the Fundamental Research Program of Korean Institute of Materials Science，UK EPSRC Material Systems for Extreme Environments Programme Grant
文摘Tribological property of c-axis textured shell-like Ti3AlC2 ceramic was investigated using reciprocating sliding balls (SUS304) under loads of 1,5,and 9 N.It was found that the textured top surface (TTS),corresponding to the (000l) plane,shows the lowest mean coefficient of friction in comparison with those measured on the textured side surface (TSS),where the sliding directions are parallel (TSS-1) and perpendicular (TSS-2) to c axis,under the same load.Among all the tested orientations,the TSS-2 exhibited the lowest wear rate of 1.51 × 10-3 mm3/(N·m) under the load of 9 N.The worn mechanisms on the TTS and TSS-1 were delamination,grain fracture,and grain spalling-off.On the TSS-2,plowing effect against balls was the dominating mechanism.This work suggests the criteria to maximize the wear resistance in the load range of 1-9 N.
