Study on martensitic transformation, magnetic and compressive properties of spray casting Ni-Mn-Ga alloys

DOI

10.2991/mebe-15.2015.146How to use a DOI?

Keywords

Ni-Mn-Ga ferromagnetic shape memory alloy; spray casting; martensitic transformation; magnetic property; compressive property.

Abstract

The influence of spray casting technique on martensitic transformation temperature, magnetic properties and compressive properties of Ni50Mn25+xGa25–x (x = 0, 1.25, 2.5, 3.75 and 5) alloys was investigated. With the increase in Mn content, martensitic transformation temperature of the spray casting samples is increased, but slightly lower than that of the corresponding as-cast ones. The saturation magnetization test shows the opposite tendency and proves the spray casting technique can effectively enhance the magnetic properties. Compression experiments showed that the spray casting process did not change the fracture strain, but lead to the greatly increase in the compressive strength and improve the brittleness of the Ni-Mn-Ga alloys. This study may offer a new processing technique for developing high performance ferromagnetic shape memory alloys.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - T.Y. Song
AU  - J. Bai
AU  - W.T. Wang
AU  - S. Lin
AU  - P. Xie
AU  - Y.C. Lv
AU  - S. Wang
AU  - K. H. Wu
AU  - S.P. Sun
AU  - L.J. Liu
PY  - 2015/04
DA  - 2015/04
TI  - Study on martensitic transformation, magnetic and compressive properties of spray casting Ni-Mn-Ga alloys
BT  - Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
PB  - Atlantis Press
SP  - 633
EP  - 636
SN  - 2352-5401
UR  - https://doi.org/10.2991/mebe-15.2015.146
DO  - 10.2991/mebe-15.2015.146
ID  - Song2015/04
ER  -