The Investigation of Internal Friction on Antiferromagnetic Transition and Martensitic Transformation in Mn-Fe(Cu) Alloys

被引：0
|
作者：
Guo, Z. H. [1 ]
Rong, Y. H. [1 ]
Gu, S. Y. [1 ]
Zhang, J. H. [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
来源：
INTERNAL FRICTION AND MECHANICAL SPECTROSCOPY | 2012年 / 184卷
关键词：
Antiferromagnetic alloys; internal friction; martensitic transformation; microtwins; MN-NI ALLOYS; FCC;
D O I：
10.4028/www.scientific.net/SSP.184.378
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The internal friction and elastic modulus variations caused by the structural rearrangement fcc <-> fct in Mn-Fe(Cu) antiferromagnetic alloys were studied in this paper. Antiferromagnetic transition exhibits weak first-order features due to the formation of microtwins by modulus softening mechanism. Antiferromagnetic transition also assists subsequent transformation to form twinned martensite. The small hysteresis between direct and reveres martensitic transformations indicates the thermoelastic feature. Both the martensitic and its reverse transformations also depend on the modulus softening mechanism.
引用
收藏
页码：378 / +
页数：3
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