Structure and Phase Transformation in Ni-Co-Mn-In Ferromagnetic Shape Memory Alloys

被引：1
|
作者：
Reclik, Katarzyna [1 ]
Prusik, Krystian [1 ]
Goryczka, Tomasz [1 ]
Kubisztal, Marian [1 ]
Stroz, Danuta [1 ]
机构：
[1] Univ Silesia, Inst Mat Sci, Chorzow, Poland
来源：
APPLIED CRYSTALLOGRAPHY XXII | 2013年 / 203-204卷
关键词：
Ni-Co-Mn-In; ferromagnetic shape memory alloys; phase transformation; gamma phase; modulated martensite; GA;
D O I：
10.4028/www.scientific.net/SSP.203-204.240
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the present study the series of the Ni46.2Co5.0Mn36.1In12.6, Ni48.7CO5.2Mn34.4In11.6 and Ni45.6Co4.8Mn36.4In13.2 alloys (at. %) were studied. The influence of the indium addition on structure and phase transitions was studied. All alloys were annealed at 900 C for 24 hours and then slowly cooled in the furnace. After annealing all of the studied alloys showed the macrostructure of radially oriented columnar grains, which lied in the direction perpendicular to the casting axis. For the alloy containing about 13 at. % of indium the monoclinic 14M modulated martensite was stated at room temperature. Apart from the modulated martensite in al_133 alloy the gamma phase was also observed. For alloy with higher indium content the mixture of cubic L2(1) parent phase and cubic gamma phase was identified. All studied alloys showed one-step martensitic transformation.
引用
收藏
页码：240 / 245
页数：6
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