Ultrafine-Grained AlCoCrFeNi2.1 Eutectic High-Entropy Alloy
Journal article, 2016

The development of microstructure and mechanical properties was investigated in a heavily cold-rolled and annealed AlCoCrFeNi2.1 high-entropy alloy. The as-cast alloy having a eutectic morphology consisting of alternate bands of ordered L1(2) and B2 phases was 90% cold-rolled. The deformed microstructure showed profuse shear banding and disordering of the L12, but no transformation of the B2 phase. A duplex microstructure consisting of ultrafine equiaxed grains (similar to 0.60 mu m) of disordered face centered cubic and B2 was observed after annealing at 800 degrees C. The annealed material showed remarkable strength-ductility combination having ultimate tensile strength similar to 1.2 GPa and elongation to failure similar to 12%.

recrystallization

deformation

Cold-Rolling

behavior

ductility

Annealing

texture evolution

Ordered Phases

Properties

phase-stability

High-Entropy Alloys

microstructure

Materials Science

Author

I. S. Wani

IIT Hyderabad

T. Bhattacharjee

Kyoto University

Saad Ahmed Sheikh

Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering

Y. P. Lu

Dalian University of Technology

S. Chatterjee

IIT Hyderabad

P. P. Bhattacharjee

IIT Hyderabad

Sheng Guo

Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering

N. Tsuji

Kyoto University

Materials Research Letters

2166-3831 (eISSN)

Vol. 4 3 174-179

Subject Categories

Behavioral Sciences Biology

Materials Chemistry

DOI

10.1080/21663831.2016.1160451

More information

Latest update

1/5/2023 1