FRICTION STIR PROCESSING OF SKD61 TOOL STEEL

摘要：

In this study, SKD61 tool steel was friction stir processed (FSP) using a polycrystalline cubic boron nitride (PCBN) tool. Microstructure evolution and mechanical property in FSP zone were investigated. Microstructural observation results showed that the microstructures in FSP zone surface were fine grains in the range of 1 - 4 μm due to large plastic deformation during FSP. Micro-hardness test results showed that the average hardness value in FSP zone was 773 HV, 3.7 times the hardness in base metal (210 HV). The wear test results showed that FSP surface showed a significantly lower wear rate than that of the base material at all loads. The relation between microstructural evolution and mechanical property in FSP zone was discussed.

关键词： Friction stir processing tool steel microstructure mechanical properties

作者: YINGCHUN CHEN KAZUHIRO NAKATA

作者单位: Joining and Welding Research Institute, Osaka University, II-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan

会议类型: 国际会议

会议名称: 第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)

会议地点: 哈尔滨

会议语种:英文

页码: 1116-1121

在线出版日期: 2008-09-03（万方平台首次上网日期，不代表论文的发表时间）