期刊
SCRIPTA MATERIALIA
卷 171, 期 -, 页码 62-66出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2019.06.020
关键词
Heterogeneous nucleation; Interphase interface; Precipitation; Phase-field simulation; High resolution scanning transmission electron microscopy
类别
资金
- National Science Foundation, Division of Materials Research [DMR-1309270]
- DMREF [DMR-1435483]
- DOE by Lawrence Livermore National Laboratory (LLNL) [DE-AC52-07NA27344]
We investigate mechanisms of omega-assisted alpha nucleation for microstructure refinement in a metastable beta titanium alloy, Ti-20V (wt%). In particular, we analyze quantitatively the individual and combined effects of concentration and stress fields associated with a growing isothermal omega precipitate and the potency of the omega/beta interface on the activation energy barrier for alpha nucleation as a function of the omega precipitate size and coherency state. We find that the complex interplay among these three factors determines the most potent omega particle size for inducing alpha nucleation and the most favorable nucleation site. (C) 2019 Acta Materialia Inc Published by Elsevier Ltd. 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