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Issue J. Phys. IV France
Volume 05, Number C8, Décembre 1995
International Conference on Martensitic Transformations
ICOMAT 95
Page(s) C8-427 - C8-432
DOI http://dx.doi.org/10.1051/jp4:1995864

International Conference on Martensitic Transformations
ICOMAT 95

J. Phys. IV France 05 (1995) C8-427-C8-432
DOI: 10.1051/jp4:1995864

Production and Characterization of Stainless Steel Based Fe-Cr-Ni-Mn-Si(-CO) Shape Memory Alloys

J. Otubo1, P.R. Mei1 and S. Koshimizu2

1  FEM/DEMA, State University of Campinas, CP 6122, CEP 13081-970, Campinas, SP, Brazil
2  CNEN/IPEN, CP 11049, CEP 05422-970, Sao Paulo, SP, Brazil


Abstract
It is well known that the Fe based alloys can exhibit shape memory effect due to the γ to ε martensitic transformation. The effect may not be as striking as observed in the NiTi alloy but it might become attractive from the practical point of view. In this work, two compositions of Fe-Cr-Ni-Mn-Si(-Co) stainless steel based shape memory alloy, prepared by the VIM technique, will be presented. The results are good with shape recovery of 95% for a pre-strain of 4% after some training cycles. In terms of workability the alloys produced are worse than the usual AISI304. However, adjusting the thermo-mechanical processing, it is perfectly possible to produce wire as thin as 1,20mm in dia. or down.



© EDP Sciences 1995


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