Austenite stability in Fe-Mn-Si-based shape memory alloys
Data(s) |
14/03/2007
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Resumo |
The stability of austenite in a number of Fe–Mn–Si-based shape memory alloys has been investigated. It was found that a grain boundary precipitate of BCC structure is formed over a wide range of alloy compositions and heat treatment temperatures. This grain boundary phase has been identified as the chi (χ) phase. Although up to 3 vol.% of the grain boundary precipitate was generated by isothermal aging in the range 500–800 °C, it was found not to markedly affect the mechanical properties or the shape memory effect. Nano-indentation indicated that the hardness and strength of the parent and precipitate phase are very similar, as are their compositions.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Elsevier BV |
Relação |
http://dx.doi.org/10.1016/j.jallcom.2006.04.054 |
Direitos |
2006, Published by Elsevier B.V. |
Palavras-Chave | #Shape memory #Phase transformation #Martensite #Austenite #Intermetallic |
Tipo |
Journal Article |