Magnetostriction of martensite
A general strategy is described for inducing magnetostriction in ferromagnetic martensitic materials. An analysis of domain redistribution caused by a magnetic field is given, and certain relations between material constants that promote this effect are described. These relations suggest a 'con...
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| Published in | Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties Vol. 77; no. 5; pp. 1273 - 1299 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
London
Taylor & Francis Group
01.05.1998
Taylor and Francis |
| Online Access | Get full text |
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| Summary: | A general strategy is described for inducing magnetostriction in ferromagnetic martensitic materials. An analysis of domain redistribution caused by a magnetic field is given, and certain relations between material constants that promote this effect are described. These relations suggest a 'constrained theory of magnetostriction' which is used to predict strain against field in a tetragonal martensite subject to an orthogonal biaxial magnetic field and uniaxial stress. These predictions are compared with the corresponding experiments in Fe
70
Pd
30
. Reversible field-induced strains of 0.6% are exhibited in this system. Microstructural observations confirm that these strains are caused by a field-induced redistribution of martensitic twins. |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 |
| ISSN: | 0141-8610 1460-6992 |
| DOI: | 10.1080/01418619808214252 |