High isothermal internal friction over a large temperature range for dual-phase Ni-Mn-In magnetic shape memory alloy

被引：6
|
作者：
Huang, Y. J. [1 ]
Hu, Q. D. [1 ]
Hou, J. W. [2 ]
Li, J. G. [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Instrumental Anal Ctr, Shanghai 200240, Peoples R China
来源：
SCRIPTA MATERIALIA | 2014年 / 87卷
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
Magnetic shape memory alloys (MSMAs); Internal friction; Ni-Mn-In; Martensitic transformation; Dynamic mechanical analysis; MARTENSITIC-TRANSFORMATION; DAMPING PROPERTIES; BEHAVIOR;
D O I：
10.1016/j.scriptamat.2014.05.018
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The isothermal internal friction (IF) behavior of dual-phase Ni52Mn32In16 magnetic shape memory alloy was investigated by dynamic mechanical analysis. The contribution of the isothermal IF to the overall IF peak is close to 90%. This high isothermal IF is obtained over a large working temperature range of 88 degrees C, which is broadened by the concurrence of the martensitic transformation and the intermartensitic transformation. An strong hindering effect on structural transformations is identified by microstructural observations. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：21 / 24
页数：4
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