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Journal of Materials Engineering and Performance
Published in: Journal of Materials Engineering and Performance 7/2014

01-07-2014

Improved Shape Memory Characteristics of Fe-14Mn-6Si-9Cr-5Ni Alloy Via Mechanical Alloying

Authors: A. Umut Söyler, Burak Özkal, Leandru G. Bujoreanu

Published in: Journal of Materials Engineering and Performance | Issue 7/2014

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Abstract

In this work, the aim was to investigate how the deformation by cold rolling affects the microstructure and transformation temperatures of Fe-14Mn-6Si-9Cr-5Ni alloy prepared by powder metallurgy route. The characteristic of the martensitic transformation in the given alloy composition was investigated in terms of the amount of deformation via cold rolling. Mechanical alloying was applied for reaching better chemical homogenization level in powder state and for this purpose the as-blended powder mixture having target composition was mechanical alloyed for 4 h under protective atmosphere. Compacted samples were sintered at 1150 °C for 2 h under Ar atmosphere. After applying different amounts of cold deformation to the sintered samples, the changes in microstructure of the shape memory alloys were characterized by x-ray diffraction and scanning electron microscopy. With increasing amount of cold deformation, shape memory recovery ratios increased remarkably and ε-martensite phase was simultaneously detected during phase analysis.
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Metadata
Title
Improved Shape Memory Characteristics of Fe-14Mn-6Si-9Cr-5Ni Alloy Via Mechanical Alloying
Authors
A. Umut Söyler
Burak Özkal
Leandru G. Bujoreanu
Publication date
01-07-2014
Publisher
Springer US
Published in
Journal of Materials Engineering and Performance / Issue 7/2014
Print ISSN: 1059-9495
Electronic ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-014-0998-4

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