Effects of annealing on the structure and mechanical properties of FeCoCrNi high-entropy alloy fabricated via selective laser melting

• Published in: Additive manufacturing Vol. 32; p. 101058
• Main Authors: Lin, Danyang, Xu, Lianyong, Jing, Hongyang, Han, Yongdian, Zhao, Lei, Minami, Fumiyoshi
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.2020
• Subjects: Annealing; Dislocation network; Mechanical properties; Powder bed fusion; Twinning; Dislocation network; Annealing; Powder bed fusion; HEA; SSD; FCC; Mechanical properties; Twinning; AM; SLM; KAMM; SEM; GND; EBSDD; TEM; GD; ICP-OES; OM; AGD

[Display omitted] •Shrinkage stress occur perpendicular to boundaries of primary columnar grains.•This stress forms immobile dislocation networks that hinder dislocation movement.•Recrystallization during annealing at ≥1373 K eliminates the dislocation network.•Networks of connected deformation and...