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Microstructure and mechanical properties of gas tungsten arc welded Cu-Al-Mn shape memory alloy rods

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Resumo:Large diameter rods of Cu-Al-Mn shape memory alloy were gas tungsten arc welded. The microstructural evolution was studied by electron microscopy techniques and its impact on the mechanical and functional response of the welded joints was assessed. The fusion zone exhibited a mixture of α and β phases, while the base material was composed only by the parent β phase. The refined grain structure of the fusion zone increased the material ductility and can improve the functional fatigue resistance of the welded joint when compared to the original base material.
Autores principais:Oliveira, J. P.
Outros Autores:Crispim, B.; Zeng, Z.; Omori, T.; Braz Fernandes, F. M.; Miranda, R. M.
Assunto:Characterization Functional fatigue Phase transformations Shape memory alloys Superelasticity Welding Ceramics and Composites Computer Science Applications Metals and Alloys Industrial and Manufacturing Engineering
Ano:2019
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Universidade Nova de Lisboa
Idioma:inglês
Origem:Repositório Institucional da UNL

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