Exceptional cryogenic strength-ductility synergy in Al0.3CoCrNi medium-entropy alloy through heterogeneous grain structure and nano-scale precipitates

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: A Pub Date : 2019-10-24 DOI:10.1016/j.msea.2019.138372

Praveen Sathiyamoorthi , Peyman Asghari-Rad , Jeong Min Park , Jongun Moon , Jae Wung Bae , Alireza Zargaran , Hyoung Seop Kim

引用次数: 43

Abstract

We engineered an Al_0.3CoCrNi medium-entropy alloy with heterogeneous grain structure and nanoscale precipitation through thermo-mechanical processing route, with an aim to achieve a remarkable combination of cryogenic yield strength and ductility. The alloy exhibited an exceptional combination of high cryogenic yield strength of ∼1.1 GPa and high uniform elongation of ∼37%.

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Al0.3CoCrNi中熵合金通过非均匀晶粒结构和纳米级析出物实现了超常的低温强度-塑性协同作用

通过热机械加工的方法，设计了一种具有非均匀晶粒组织和纳米级析出的Al0.3CoCrNi中熵合金，旨在实现低温屈服强度和延展性的显著结合。该合金具有优异的低温屈服强度(~ 1.1 GPa)和均匀伸长率(~ 37%)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Science and Engineering: A 工程技术-材料科学：综合

CiteScore

11.50

自引率

15.60%

发文量

1811

审稿时长

31 days

期刊介绍： Materials Science and Engineering A provides an international medium for the publication of theoretical and experimental studies related to the load-bearing capacity of materials as influenced by their basic properties, processing history, microstructure and operating environment. Appropriate submissions to Materials Science and Engineering A should include scientific and/or engineering factors which affect the microstructure - strength relationships of materials and report the changes to mechanical behavior.