Effect of nickel addition on enhancing nano-structuring and suppressing TRIP effect in Fe40Mn40Co10Cr10 high entropy alloy during high-pressure torsion

• Published in: International journal of plasticity Vol. 150; p. 103193
• Main Authors: Chandan, Avanish Kumar, Kishore, Kaushal, Hung, Pham Tran, Ghosh, Mainak, Chowdhury, Sandip Ghosh, Kawasaki, Megumi, Gubicza, Jenő
• Format: Journal Article
• Language: English
• Published: New York Elsevier Ltd 01.03.2022; Elsevier BV
• Subjects: Deformation effects; Deformation mechanisms; Dislocation density; Dislocations (A); Entropy; Free energy; Grain size; High entropy alloys; High pressure; Microstructures (A); Nickel; Phase transformation (A); Phase transitions; Plastic properties; Strengthening mechanisms (A); Twinning (A); Microstructures (A); Phase transformation (A); Twinning (A); Dislocations (A); Strengthening mechanisms (A)

•Ni addition to Fe40Mn40Co10Cr10 HEA altered the HPT-induced plasticity mechanisms.•Ni added alloy showed greater tendency for nano-structuring.•Ni addition led to suppression of TRIP mechanism.•A four-fold increase in dislocation density was obtained in the Ni added alloy.•A greater peak hardness w...