The experimental study on friction and wear characteristics of 25Cr12Ni5Mo hot work die steels at high temperature

摘要：

High temperature pin-on-disk tester heated by middle frequency induction was designed. Friction test of hot work die steels with the same composition treated under three different heat treatment conditions was carried out by the pin-on-disk tester at high temperature. The experimental temperature were 200 ℃, 300 ℃, 400 ℃, 500 ℃, applied loads were lkg, 1.5kg, 2kg, 2.5kg, respectively, pin-on-disk circumrotating speed was 1 OOOr/min for all the experiments. Morphology of worn surface and subsurface structure were observed by optical microscope. Experimental results indicat that wear loss decrease with temperature increasing. Meanwhile, there are various growing rule under different loads, wear loss increase slightly under low load, but increase rapidly with load increasing, especially increment become larger at low temperature. Morphology of worn surface show that the two-body abrasive wear are mainly mechanism under low temperature and low load condition, oxidation wear and adherence abrasive wear are mainly mechanism under high temperature and high load condition.

关键词： Hot work die steels High temperature wear Wear loss Load

作者: WANG Xingguo XU Jiujun

作者单位: School of Mechanical and Electronic Engineering, Jingdezhen Ceramic Institute,Jingdezhen 333403, Chi Dalian Maritime University Dalian 116026 China

会议类型: 国际会议

会议名称: 2011 International Conference on Mechatronics and Applied Mechanics(2011年机电一体化与应用力学国际会议 ICMAM 2011)

会议地点: 香港

会议语种:英文

页码: 286-290

在线出版日期: 2011-12-27（万方平台首次上网日期，不代表论文的发表时间）