Universal Trend in the dynamic relaxations of tilted metastable grain boundaries during ultrafast thermal cycle

Zhitong Bai; Amit Misra; Yue Fan

doi:10.1080/21663831.2022.2050957

Chinese

您当前的位置：

首页 >

文章列表页 >

Universal Trend in the dynamic relaxations of tilted metastable grain boundaries during ultrafast thermal cycle

Original Reports | 更新时间：2026-08-19

- Universal Trend in the dynamic relaxations of tilted metastable grain boundaries during ultrafast thermal cycle
- Universal Trend in the dynamic relaxations of tilted metastable grain boundaries during ultrafast thermal cycle
- 材料研究快报（英文） 2022年10卷第6期页码：343-351
- 作者机构：
  
  1. a Department of Mechanical Engineering University of Michigan Ann Arbor
  2. b Department of Materials Science and Engineering and Department of Mechanical Engineering University of Michigan Ann Arbor
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2050957
  中图分类号：
- 网络首发：2022-03-22，
  
  纸质出版：2022
- 稿件说明：
移动端阅览
Zhitong Bai, Amit Misra, Yue Fan. Universal Trend in the dynamic relaxations of tilted metastable grain boundaries during ultrafast thermal cycle[J]. 材料研究快报（英文）, 2022,10(6):343-351.

Zhitong Bai, Amit Misra, Yue Fan. Universal Trend in the dynamic relaxations of tilted metastable grain boundaries during ultrafast thermal cycle[J]. Materials Research Letters, 2022, 10(6): 343-351.
Zhitong Bai, Amit Misra, Yue Fan. Universal Trend in the dynamic relaxations of tilted metastable grain boundaries during ultrafast thermal cycle[J]. 材料研究快报（英文）, 2022,10(6):343-351. DOI： 10.1080/21663831.2022.2050957.

Zhitong Bai, Amit Misra, Yue Fan. Universal Trend in the dynamic relaxations of tilted metastable grain boundaries during ultrafast thermal cycle[J]. Materials Research Letters, 2022, 10(6): 343-351. DOI： 10.1080/21663831.2022.2050957.

摘要

Abstract

Nonequilibrium relaxations in a multiplicity of tilted grain boundaries (GBs) subjected to ultrafast thermal driving forces are investigated by atomistic modeling. By scrutinizing the intermediate metastable microstates and their assessable activation barriers in the underlying energy landscape

we demonstrate the energetics and atomic diffusions in tilted metastable GBs are disorder-driven rather than free volume-driven. A critical transition temperature is identified

separating the nonequilibrium GBs’ evolution into a fast-varying stage

and a tuning-ineffective stage

respectively. We further discover a universal correlation between such critical temperature and GBs’ inherent structure energy

which enables predicting the tunability of metastable GBs’ kinetic and mechanical properties.

关键词

Keywords

references

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

Suppressing Portevin-Le Chatelier effect and enhancing mechanical properties in nanoparticles-modified high-Mg aluminum crossover alloy

Microstructural specificity of optimal creep performance in Ni-based single crystal superalloys under 980°C-250 MPa and 1100°C-137 MPa conditions

Apathwaytoachievingstrength–ductilitysimultaneousimprovementviasolutesegregationingradient-structuredMg–Zn–Gdalloy

Combined first-principles calculation and machine learning for the strength of segregated grain boundaries in aluminum

Dislocation mechanism of the Re-W synergistic strengthening effect in nickel-based single crystal model superalloy