期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2015.08.031
关键词
Compressive deformation; Flow softening; Grain size effects; Strain rate sensitivity; Titanium
类别
资金
- National Natural Science Foundation of China, China [11221202]
- European Research Council, Belgium under ERC [267464-SPDMETALS]
- Russian Scientific Foundation [14-29-00199]
- National Key Laboratory of Science and Technology on Materials under Shock and Impact
- State Key Laboratory of Explosion Science and Technology
- Russian Science Foundation [14-29-00199] Funding Source: Russian Science Foundation
An investigation was conducted to evaluate the dependence on grain size of the compressive deformation of commercial purity (CP) Ti. Tests were performed at room temperature using grain sizes from coarse-grained CG (20 mu m) to ultrafine-grained UFG (500 nm) and nanocrystalline NC (90 nm) with testing strain rates in the range from 0.01 to 10 s(-1). The results show the flow stress and the strain rate sensitivity of CP Ti increase with decreasing grain size. Work hardening dominates at all strain rates in CG Ti but it balances with flow softening at 0.01 and 0.1 s(-1) in UFG and NC Ti and there is obvious flow softening in these two materials at 10 s(-1). (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