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Microstructure and mechanical properties of gas tungsten arc welded Cu-Al-Mn shape memory alloy rods
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Orientador(es)
Resumo(s)
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.
Descrição
JPO, BC and RMM acknowledge Fundacao para a Ciencia e a Tecnologia (FCT - MCTES) for the financial support of UNIDEMI via the project UID/EMS/00667/2019. FMBF acknowledges funding of CENIMAT by FEDER through the program COMPETE 2020 and National Funds through FCT-Portuguese Foundation for Science and Technology, under the project UID/CTM/50025/2013. ZZ acknowledges the National Natural Science Foundation of China (Grant No. 51775091) and the Science and Technology Planning Project of Sichuan Province (Grant No. 2018GZ0284).
Palavras-chave
Characterization Functional fatigue Phase transformations Shape memory alloys Superelasticity Welding Ceramics and Composites Computer Science Applications Metals and Alloys Industrial and Manufacturing Engineering