Evolution of microstructure and crystallographic texture in severely cold rolled high entropy equiatomic CoCrFeMnNi alloy during annealing. Issue 1 (April 2015)

• Record Type: Journal Article
• Authors: Sathiaraj, G D; Lee, C; Tsai, C W; Yeh, J W; Bhattacharjee, P P
• Is Part Of: IOP conference series. Volume 82:Issue 1(2015)
• Publication Date: 2015-04
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/82/1/012068
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: An equiatomic FCC CoCrFeMnNi high entropy alloy (HEA) was heavily cold rolled up to 90% reduction in thickness followed by isochronal annealing for 1 hour at temperatures ranging between 700°C to 1100°C. A strong brass texture was observed in the cold-rolled condition indicating the low stacking fault energy of the material. A fine stable microstructure was observed during annealing at low temperatures. The recrystallization texture was characterized by the presence of deformation texture components, in particular, the α-fiber (ND//<110>), S ({123} <634>) and the typical brass recrystallization texture component ({236} <385>). Annealing twins were shown to have important effect on the formation of annealing texture.