Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/106665
Type: Artigo de periódico
Title: The Influence Of Carbon And Oxygen Content On The Martensitic Transformation Temperatures And Enthalpies Of Niti Shape Memory Alloy
Author: Otubo J.
Rigo O.D.
Coelho A.A.
Neto C.M.
Mei P.R.
Abstract: The martensitic transformation temperatures and enthalpies of NiTi shape memory alloy strongly depend on the content of nickel and on carbon and oxygen impurities. Nickel stabilizes the high-temperature phase while carbon and oxygen enrich the surrounding matrix with nickel. In this work it is shown that, as a consequence, the martensitic transformation temperatures and enthalpy changes are lower than specially prepared low-contamination reference samples. Furthermore, the enthalpy changes increase linearly with increasing peak martensitic transformation temperature. This means that the lower the enthalpies, the lower is the peak martensitic transformation temperature suggesting that at some lower temperature no phase change should occur. © 2007 Elsevier B.V. All rights reserved.
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Rights: fechado
Identifier DOI: 10.1016/j.msea.2007.02.137
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-41849124578&partnerID=40&md5=79ba6cf39faeaa7282065c9e20a7a35a
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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