Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys

A. Jagetia; M.S.K.K.Y. Nartu; S. Dasari; A. Sharma; B. Gwalani; R. Banerjee

doi:10.1080/21663831.2020.1871440

Chinese

您当前的位置：

首页 >

文章列表页 >

Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys

Original Reports | 更新时间：2026-08-19

- Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys
- Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys
- 材料研究快报（英文） 2021年9卷第5期页码：213-222
- 作者机构：
  
  1. a Department of Materials Science and Engineering University of North Texas Denton
  2. a Department of Materials Science and Engineering University of North Texas Denton TX USA
  3. b Currently at Physical and Computational Sciences Directorate Pacific Northwest National Laboratory Richland
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2020.1871440
  中图分类号：
- 网络首发：2021-01-23，
  
  纸质出版：2021
- 稿件说明：
移动端阅览
A. Jagetia, M.S.K.K.Y. Nartu, S. Dasari, 等. Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys[J]. 材料研究快报（英文）, 2021,9(5):213-222.

A. Jagetia, M.S.K.K.Y. Nartu, S. Dasari, et al. Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys[J]. Materials Research Letters, 2021, 9(5): 213-222.
A. Jagetia, M.S.K.K.Y. Nartu, S. Dasari, 等. Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys[J]. 材料研究快报（英文）, 2021,9(5):213-222. DOI： 10.1080/21663831.2020.1871440.

A. Jagetia, M.S.K.K.Y. Nartu, S. Dasari, et al. Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys[J]. Materials Research Letters, 2021, 9(5): 213-222. DOI： 10.1080/21663831.2020.1871440.

摘要

Abstract

This paper reports a dramatic increase in the grain boundary strengthening or Hall-Petch coefficient

by systematically investigating the effect of Al addition on tensile yield strength in CoFeNi and CoCrFeNi high entropy alloys (HEAs) or complex concentrated alloys (CCAs). Additionally

detailed atom probe tomography (APT) revealed a high number density of Ni-Al rich nano-clusters in the Al

0.3

CoFeNi and Al

0.3

CoCrFeNi HEAs/CCAs

which can be rationalized based on the strong chemical ordering tendency between these elements. Consequently

the huge increase in K value can be attributed to the additional stress required for overcoming coherency strain fields arising from these nano-clusters.

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

Engineering transformation pathways in an Al0.3CoFeNi complex concentrated alloy leads to excellent strength–ductility combination

Formation mechanism of cellular structure of Ni32.5Co15Cr10Fe23Al17.5Mo1.5W0.5 eutectic high-entropy alloys by selective laser melting

Decoding deformation-induced phase transformation in a high entropy alloy via nanoindentation pop-in phenomenon

Exceptionally low thermal conductivity in distorted high entropy alloy

A molecular dynamics study on the Mie-Grüneisen equation-of-state and high strain-rate behavior of equiatomic CoCrFeMnNi

相关机构

b CNRS Univ. Bordeaux Bordeaux INP ICMCB UMR

c Collaborative Innovation Center Northwestern Polytechnical University

b Research & Development Institute Northwestern Polytechnical University in Shenzhen Shenzhen People’s Republic of China

a State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi’an People’s Republic of China

a State Key Laboratory of Solidification Processing Northwestern Polytechnical University

AI问答

地址：北京市丰台区顺八条1号院2号楼北阳晨光大厦2层邮编：100079
联系电话：（010）53879206 Email：tmw@bjxintong.com.cn
技术支持由北京北大方正电子有限公司提供京ICP备09082226号-64 京公网安备11010602201714号
本系统建议在Chrome、 IE9+ 以上版本浏览器阅读本站内容，360浏览器请切换至极速模式
Cookies帮助我们提供服务并提供个性化体验。使用本网站，即表示您同意我们使用Cookies

⁰