Ultrafine-Grained AlCoCrFeNi2.1 Eutectic High-Entropy Alloy
Artikel i vetenskaplig tidskrift, 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%.

deformation

phase-stability

texture evolution

microstructure

behavior

Properties

High-Entropy Alloys

Cold-Rolling

Ordered Phases

recrystallization

Materials Science

Annealing

ductility

Författare

I. S. Wani

IIT Hyderabad

T. Bhattacharjee

Kyoto University

Saad Ahmed Sheikh

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Y. P. Lu

Dalian University of Technology

S. Chatterjee

IIT Hyderabad

P. P. Bhattacharjee

IIT Hyderabad

Sheng Guo

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

N. Tsuji

Kyoto University

Materials Research Letters

2166-3831 (eISSN)

Vol. 4 3 174-179

Ämneskategorier

Etologi

Materialkemi

DOI

10.1080/21663831.2016.1160451

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Senast uppdaterat

2018-09-06