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Phase Change Behavior of Nitinol Shape Memory Alloys
Author(s) -
Gallardo Fuentes J.M.,
Gümpel P.,
Strittmatter J.
Publication year - 2002
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/1527-2648(20020717)4:7<437::aid-adem437>3.0.co;2-8
Subject(s) - materials science , shape memory alloy , phase change , pseudoelasticity , metallurgy , engineering physics , microstructure , martensite , engineering
Among other special characteristics Shape Memory Alloys (SMAs) have the ability to return to a predetermined shape when heated. In fact, the phase change of an existing element can strongly be influenced by thermal and thermo‐mechanical treatments. Up to now, SMEs have been discovered in various materials, which can generally be classified into noble‐metal based, Cu‐based, Fe‐based, Ni‐Ti‐based alloy systems and non‐metallic SMAs. In this paper a general overview of the Ni‐Ti system and a detailed review over the Ni‐Ti‐Cu system will be given with special regard to the influence of heat treatments upon the phase change behavior.