Novel Ultralight-Weight Complex Concentrated Alloys with High Strength

被引：53

作者：

Jia, Yuefei ^{[1
]}

Jia, Yandong ^{[1
]}

Wu, Shiwei ^{[1
]}

Ma, Xindi ^{[1
]}

Wang, Gang ^{[1
]}

机构：

[1] Shanghai Univ, Inst Mat, Lab Microstruct, Shanghai 200444, Peoples R China

来源：

MATERIALS | 2019年 / 12卷 / 07期

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

ultralight-weight complex concentrated alloys; high specific strength; low Young's modulus; HIGH-ENTROPY ALLOYS; PRINCIPAL ELEMENT ALLOYS; SOLID-SOLUTION PHASE; MECHANICAL-PROPERTIES; LOW-DENSITY; FATIGUE BEHAVIOR; DESIGN; MICROSTRUCTURE; EXPLORATION; RESISTANCE;

D O I：

10.3390/ma12071136

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To explore a novel high strength and low modulus ultralight-weight complex concentrated alloys (ULW-CCAs), a series of light alloys are designed and explored based on some low-density and low modulus elements, such as Al, Li, Mg, Ca, Si, and Y. An Al19.9Li30Mg35Si10Ca5Y0.1 (at %) CCA with a high specific strength of 327 KPam(-3) is successfully developed. After adjusting the composition, the Al15Li35Mg48Ca1Si1 CCA with the good compressive plasticity is successfully developed. The Al15Li38Mg45Ca0.5Si1.5 and Al15Li39Mg45Ca0.5Si0.5 CCAs exhibit good plasticity of >45%, and >60%, respectively. These ULW-CCAs show the high specific strength, good ductility, and low Young's modulus, as compared with the previously reported CCAs.

引用

页数：15

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