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Influence of Normal Load,Sliding Speed and Ambient Temperature on Wear Resistance of ZG42CrMo 被引量:4

Influence of Normal Load,Sliding Speed and Ambient Temperature on Wear Resistance of ZG42CrMo
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摘要 To investigate the wear resistance of ZG42CrMo in industrial application,the wear behaviors under different normal loads,sliding speeds and ambient temperatures were simulated by an MMU-5G abrasion tester to acquire the friction coefficients and wear rates,with the morphology of worn surface observed by scanning electron microscopy(SEM) and chemical composition of worn surface and debris analyzed by X-ray energy dispersive spectroscopy(EDS).Combine with the theory of tribology,finally the regular of environmental factors’ influence on material wear behaviors is determined.The results show that the increase of load decreases wear resistance significantly,when the pressure reaches a certain extent,severe spalling occurs on the worn surface;the changes of speed result in the changes of size of abrasive debris,and then effect the wear behaviors,in the increasing process of speed,the wear rate increases firstly and then decreases;the rise of temperature causes changes in wear mechanism,bring forth oxidation film on the worn surface,which leads to significant improvement of the wear resistance of materials under high temperature compared to that under low temperature To investigate the wear resistance of ZG42CrMo in industrial application,the wear behaviors under different normal loads,sliding speeds and ambient temperatures were simulated by an MMU-5G abrasion tester to acquire the friction coefficients and wear rates,with the morphology of worn surface observed by scanning electron microscopy(SEM) and chemical composition of worn surface and debris analyzed by X-ray energy dispersive spectroscopy(EDS).Combine with the theory of tribology,finally the regular of environmental factors’ influence on material wear behaviors is determined.The results show that the increase of load decreases wear resistance significantly,when the pressure reaches a certain extent,severe spalling occurs on the worn surface;the changes of speed result in the changes of size of abrasive debris,and then effect the wear behaviors,in the increasing process of speed,the wear rate increases firstly and then decreases;the rise of temperature causes changes in wear mechanism,bring forth oxidation film on the worn surface,which leads to significant improvement of the wear resistance of materials under high temperature compared to that under low temperature
出处 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2012年第4期69-74,共6页
基金 Sponsored by High Technology Research and Development Program of China(2009AA04Z143) New Century Excellent Talents in University of China(NCET-09-0117)
关键词 ZG42CrMo wear resistance normal load sliding speed ambient temperature ZG42CrMo wear resistance normal load sliding speed ambient temperature
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