On the effect of gamma phase formation on the pseudoelastic performance of polycrystalline FeMnAlNi shape memory alloys
Academic Article
Overview
Research
Identity
Additional Document Info
View All
Overview
abstract
2015 Acta Materialia Inc. In recent years, iron-based shape-memory-alloys such as Fe-Mn-Al-Ni came into focus, due to superior pseudoelastic performance and concomitantly low costs of the alloying elements. The formation of the ductile -phase in polycrystalline Fe-Mn-Al-Ni and its impact on the pseudoelastic performance have not been addressed, yet. Based on modification of quenching conditions this study shows that controlled -phase precipitation at grain boundaries can suppress intergranular cracking without affecting pseudoelasticity. In situ incremental strain tests revealed good recoverability up to about 8% strain.