铸造技术2011，Vol.32Issue(11)：1602-1605,4.
塑性变形中晶粒变形与细化机制的影响因素
Influence Factors on Grain Deformation and Refinement Mechanisms during Plastic Deformation
黄丰 1钟飞 1李鹏云 1集永纯1
作者信息
- 1. 广东电网公司电力科学研究院,广东广州 510080
- 折叠
摘要
Abstract
With the development of techniques for preparing ultrafine-grained and nanostructured materials in the past decades, the microstructures of ultrafine-grained and nanostructured materials were widely investigated due to their unique microstructures and superior properties. The influences of stacking fault energy, stain rate and deformation temperature during plastic deformation were discussion. The results show: as the stacking fault energy reduces, the dominated plastic deformation mechanism changes from dislocation slipping to mechanical twinning. It is benefit to refine grain. Increasing strain rate and reducing deformation temperature are helpful to suppress dynamic recovery and enhance flow stress, which lead to form grains with smaller sizes.关键词
超细晶结构材料/纳米结构材料/塑性变形Key words
Ultrafine-grained/ Nanostructured materials/ Plastic deformation分类
矿业与冶金引用本文复制引用
黄丰,钟飞,李鹏云,集永纯..塑性变形中晶粒变形与细化机制的影响因素[J].铸造技术,2011,32(11):1602-1605,4.
