Title of article
Martensitic transformation and magnetic properties in ferromagnetic shape memory alloy Ni43Mn46Sn11−xSix
Author/Authors
Liu، نويسنده , , Zhuhong and Wu، نويسنده , , Zhigang and Yang، نويسنده , , Hong and Liu، نويسنده , , Yinong and Wang، نويسنده , , Wenhong and Ma، نويسنده , , Xingqiao and Wu، نويسنده , , Guangheng، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
7
From page
1605
To page
1611
Abstract
This study investigated the effects of Si addition and heat treatment on the martensitic transformation and magnetic properties of Ni43Mn46Sn11−xSix (x = 1, 2, 3) alloys. The martensitic transformation temperatures were found to increase with increasing Si content in the alloy. A magnetic field-induced martensite-to-austenite transformation was found in Ni43Mn46Sn10Si1. Ageing of the Ni43Mn46Sn10Si1 alloy at 673 K resulted in the formation of a (Mn,Ni)–SiSn precipitate. The precipitate contains very low Sn content, causing the increase of the Sn content in the matrix phase and a decrease of martensitic transformation temperature. Ageing at 573 K is found to increase the Curie temperature and the saturation magnetization. This is attributed to the increase of atomic ordering of the matrix. Solution treatment of the aged samples at 1073 K was effective to restore the original transformation behaviour and magnetic properties.
Keywords
B. Thermal stability , A. Magnetic intermetallics , C. Heat treatment , B. Magnetic properties , B. Martensitic transformations
Journal title
Intermetallics
Serial Year
2011
Journal title
Intermetallics
Record number
1505137
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