Journal
SCRIPTA MATERIALIA
Volume 75, Issue -, Pages 26-29Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2013.11.009
Keywords
Ni-Mn-Sn-C; Martensitic transformation; Microstructure; Magnetic entropy change; Compressive strength
Categories
Funding
- Natural Science Foundation of Zhejiang Province Outstanding Youth Fund [LR12E01001]
- Natural Science Foundation of China Youth Fund [51101168]
- Natural Science Foundation of China [51371184]
- Natural Science Foundation of Ningbo City [2012A610102]
- Key Research Program of the Chinese Academy of Sciences [KGCX2-EW-215]
- Ningbo City Scientific and Technological Project [2012B81001, 2011B82004]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Human Resources and Social Security of the People's Republic of China
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The microstructure, magnetocaloric effect and mechanical properties of carbon-doped Ni43Mn46Sn11Cx (x = 0, 2, 4, 8) alloys have been investigated. The martensitic transformation temperatures increase remarkably, from 196 to 249 K, as the carbon doping content increases. A large magnetic entropy change, Delta S-M, from 27.4 J kg(-1) K-1 with x = 0 to 34.6 J kg(-1) K-1 with x = 2, was obtained for a field change of 5 T. A significant enhancement of compressive strength from 556 MPa with x = 0 up to 1016 MPa with x = 8 is ascribed to the appearance of high amount of carbides. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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