DocumentCode :
1791023
Title :
Microstructure Evolution of Co38Ni34Al28-Xsix (x=1, 3, 5, 7, 9) Magnetic Shape Memory Alloys
Author :
Jia-Jia Su
Author_Institution :
Guangdong Eng. Polytech., Guangzhou, China
fYear :
2014
fDate :
25-26 Oct. 2014
Firstpage :
373
Lastpage :
377
Abstract :
The effects of adding Si to Co38Ni34Al28 alloys on microstructure is investigated using optical microscopy (OM). Results show that the substitution Si for Al helps to reduce the volume fraction of γ precipitation and increase the martensitic transformation temperature. The increase of heat treatment temperature enhances solid solubility of γ phase in β phase matrix. The appropriate heat treatment results in homogenizing microstructure and enhancing the shape memory effect.
Keywords :
aluminium alloys; cobalt alloys; heat treatment; martensitic transformations; nickel alloys; optical microscopy; precipitation; shape memory effects; silicon alloys; solid solubility; ß phase matrix; γ precipitation; Co38Ni34Al28-xSix; heat treatment; homogenizing microstructure; magnetic shape memory alloys; martensitic transformation temperature; microstructural property; optical microscopy; solid solubility; volume fraction; Heat treatment; Microstructure; Shape; Shape memory alloys; Silicon; Temperature; ferromagnetic shape memory alloys; martensitic transformation; microstructure;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2014 7th International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4799-6635-6
Type :
conf
DOI :
10.1109/ICICTA.2014.97
Filename :
7003560
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1791023
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