期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2015.04.088
关键词
Martensite; Yield stress; Work hardening; Microstructure; Precipitation; Steel
类别
资金
- ANR
- NSERC through the GRACOS project [ANR-09-BLAN-0412]
- Agence Nationale de la Recherche (ANR) [ANR-09-BLAN-0412] Funding Source: Agence Nationale de la Recherche (ANR)
The complex microstructure of ferrous martensite is reflected in its complex mechanical response. In an attempt to highlight how carbon redistribution during quenching and/or low temperature tempering can affect mechanical response, a set of controlled experiments were performed. By rapidly quenching samples it was possible to limit autotempering allowing the evolution of mechanical response and microstructure to be followed with low temperature tempering. This was compared to a situation where the material was more slowly quenched, leading to a highly autotempered state. The gradual transition from elastic to plastic deformation is interpreted based on possible sources of microstructural heterogeneity. Lath-to-lath variations of dislocation density are discussed as a contributor to the development of microstructural heterogeneity during tempering. These results shed light on the possible origins of the continuous-composite like mechanical response of lath martensite proposed in recent work. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据