Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499373 | Scripta Materialia | 2012 | 4 Pages |
Abstract
We measure the temperature dependence of twinning stress in alloys with composition between Ni50Mn28Ga22Ni50Mn28Ga22 and Ni50Mn29Ga21Ni50Mn29Ga21 in the temperature range 288–334 K. For Type I twins, the twinning stress increases approximately linearly (0.04 MPa K−1) with decreasing temperature. For Type II twins, it is temperature independent and is about 0.2 MPa. The dependences are about the same in all alloys when presented as a function of the difference between the test temperature and the martensite transformation temperature.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
L. Straka, A. Soroka, H. Seiner, H. Hänninen, A. Sozinov,