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

J. P. Oliveira, B. Crispim, Z. Zeng, T. Omori, F. M. Braz Fernandes, R. M. Miranda

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)93-100
Number of pages8
JournalJournal of Materials Processing Technology
Volume271
DOIs
Publication statusPublished - 2019 Sep

Keywords

  • Characterization
  • Functional fatigue
  • Phase transformations
  • Shape memory alloys
  • Superelasticity
  • Welding

ASJC Scopus subject areas

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

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