Effects of grain refinement on the structure and properties of a CuAlMn shape memory alloy

被引：57

作者：

Yang, J. ^{[1
]}

Wang, Q. Z. ^{[1
]}

Yin, F. X. ^{[2
]}

Cui, C. X. ^{[1
]}

Ji, P. G. ^{[2
]}

Li, B. ^{[1
]}

机构：

[1] Hebei Univ Technol, Sch Mat Sci & Engn, Key Lab New Type Funct Mat Hebei Prov, Tianjin 300130, Peoples R China

[2] Hebei Univ Technol, Tianjin Key Lab Mat Laminating Fabricat & Interfa, Tianjin 300130, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2016年 / 664卷

基金：

中国博士后科学基金;

关键词：

Shape memory alloys; Grain refinement; Damping; Mechanical characterization; DAMPING BEHAVIOR; MECHANICAL-PROPERTIES; MICROSTRUCTURE; TRANSFORMATION; TEMPERATURE; TEXTURE; SIZE;

D O I：

10.1016/j.msea.2016.04.009

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To further enhance the performances of Cu-based shape memory alloys (SMAs), grains of a CuAlMn SMA were efficiently refined by using Cu51Zr14 as the inoculant. The effects of grain size on the microstructure, tensile mechanical properties as well as low frequency damping behaviors of the CuAlMn SMA were studied. It was found that the mean grain size of the CuAlMn SMA could be reduced from around 1050 mu m to around 37 mu m. And it was very interesting that both the tensile mechanical property and the damping capacity at relatively low temperatures increased with the decrease of the mean grain size of the CuAlMn SMA. The associated mechanisms were discussed. (C) 2016 Published by Elsevier B.V.

引用

页码：215 / 220

页数：6

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