Torsional behavior of Ni-rich NiTi alloys obtained by powder metallurgy and hot deformation.

ABSTRACT: The effects of severe plastic deformation on NiTi alloys' structure and properties have been extensively studied over the past decades. However, there is a notable lack of systematic data regarding the impact of industrial hot deformation techniques on these alloys. This gap arises from challenges in manufacturing processes related to the unevenness of ingots produced by casting technologies. This study investigates the effects of hot rotary swaging, extrusion, and radial shear rolling on the martensitic transformation, shape memory effect, superelasticity, and damping capacity of NiTi Ni-rich alloys fabricated through powder metallurgy. The properties were investigated under torsional load on wires prepared by spark eroding from deformed rods. Our findings indicate that samples after roll

SUBMITTER: Volodko S 

PROVIDER: S-EPMC11574033 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature