global-journal-of-research-in-engineering-j-general-engineering Global Journal of Research in Engineering - J: General Engineering 0975-5861 2249-4596 Global Journals Publishing Group Incorporated 55994 Friction Stir Welding of Austenitic NiTi Shape Memory Alloys MeloRaphael Henrique Falcao de SLima J. WNeto A. C. BRAZIL, Federal Institute of Education, Science and Technology 15 01 2017 17 J1 1 3

This prospective work aims to evaluate the weldability of thin sheets of NiTi shape memory alloy by friction stir welding process. The phase transformation temperature was determined by ERT, the mechanical properties were evaluated by Vickers microhardness and tensile test. The fracture surface was investigated by SEM. The welded joints remained in the austenitc state after welding, achieved ultimate tensile strength of 700 MPa and 13% strain the main fracture mode was ductile.

 NITI shape memory alloy friction stir welding process mechanical properties. Full Text

This prospective work aims to evaluate the weldability of thin sheets of NiTi shape memory alloy by friction stir welding process. The phase transformation temperature was determined by ERT, the mechanical properties were evaluated by Vickers microhardness and tensile test. The fracture surface was investigated by SEM. The welded joints remained in the austenitc state after welding, achieved ultimate tensile strength of 700 MPa and 13% strain the main fracture mode was ductile.