文献类型：期刊文献

英文题名：Investigation on the interfaces of M42/45 steel bimetal composites sintered by spark plasma sintering

作者：Xu, Jinfu[1,2]; You, Hang[2]; Jiang, Peng[2]; Lv, Yuting[2]; Cao, Youqing[2]

机构：[1] Institute of Materials Engineering, Ningbo University of Technology, Ningbo 315016, China; [2] Institute of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2012

起止页码：331

外文期刊名：TMS Annual Meeting

收录：EI(收录号：20122015023116)

语种：英文

外文关键词：Powder metallurgy - Steel metallurgy - Microhardness - Tool steel - Steel metallography

摘要：In present work, we reported the fabrication of composites consisted of M42 powder metallurgy high speed steel and 45 steel at one step via spark plasma sintering (SPS) technology. The interface microstructure, compositions and microhardness with the interface forming mechanism were investigated. The results show that the morphology and microhardness within the M42/45 steel interfaces exhibit a gradient distribution. The interfaces possessed a transition layer up to 10.2 μm with few distortions and microcracks. The formation of M42/45 steel interfaces were driven by both fusion and diffusion processes. The former one was primary at the early sintering process, while the later one becomes dominant over the followed sintering process.