Wear Behaviors of GH4169 Super Alloy and 3Cr2W8V Tool Steel Under Dry Rolling Condition
来源期刊：Acta Metallurgica Sinica2018年第9期
论文作者：Ge Bian Ming Cheng Yang Liu Shi-Hong Zhang
文章页码：983 - 996
摘 要：Wear behaviors of 3 Cr2 W8 V and GH4169 with H70,including surface property,wear performance and friction work,were investigated.3 Cr2 W8 V and H70 friction pair suffered severer wear and surface damage than GH4169 and H70 friction pair.The wear process had an impact on GH4169 subsurface hardening,but no effect on 3 Cr2 W8 V.Heat energy was a proportion of the total friction work,and 3 Cr2 W8 V consumed more energy than GH4169 during temperature rise.From the numerical calculations,3 Cr2 W8 V had a more concentrated heat distribution and produced more wear than GH4169.Ultimate tensile strength(rUTS) and uniform elongation(eUE) were considered to evaluate the wear resistance of two materials,and GH4169 had a higher rUTS9 eUEvalue and lower wear degree.In conclusion,the wear mechanism of GH4169 is adhesive wear,and 3 Cr2 W8 V is a combination of abrasive and adhesive wear.Cooling can reduce the wear volume for GH4169 due to good thermal conductivity.The results show that GH4169 is more reliable for the tool material,with a better wear resistance under dry rolling condition.
Ge Bian1,2，Ming Cheng1，Yang Liu1，Shi-Hong Zhang1
1. Institute of Metal Research,Chinese Academy of Sciences2. School of Materials Science and Engineering,University of Science and Technology of China
摘 要：Wear behaviors of 3 Cr2 W8 V and GH4169 with H70,including surface property,wear performance and friction work,were investigated.3 Cr2 W8 V and H70 friction pair suffered severer wear and surface damage than GH4169 and H70 friction pair.The wear process had an impact on GH4169 subsurface hardening,but no effect on 3 Cr2 W8 V.Heat energy was a proportion of the total friction work,and 3 Cr2 W8 V consumed more energy than GH4169 during temperature rise.From the numerical calculations,3 Cr2 W8 V had a more concentrated heat distribution and produced more wear than GH4169.Ultimate tensile strength(rUTS) and uniform elongation(eUE) were considered to evaluate the wear resistance of two materials,and GH4169 had a higher rUTS9 eUEvalue and lower wear degree.In conclusion,the wear mechanism of GH4169 is adhesive wear,and 3 Cr2 W8 V is a combination of abrasive and adhesive wear.Cooling can reduce the wear volume for GH4169 due to good thermal conductivity.The results show that GH4169 is more reliable for the tool material,with a better wear resistance under dry rolling condition.
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