Effects of homogenization temperature on cracking during cold-rolling of Al^sub 0.5^CoCrFeMnNi high-entropy alloy

In this work, the effects of homogenization annealing temperature of Al0.5CoCrFeMnNi HEA on cracking during cold-rolling were investigated. AlNi B2 phases were formed by low-temperature homogenization and affected the cracking phenomenon during cold-rolling. X-ray diffraction, microstructure, and co...

Full description

Saved in:
Bibliographic Details
Published inMaterials chemistry and physics Vol. 210; p. 187
Main Authors Moon, Jongun, Bae, Jae Wung, Jang, Min Ji, Baek, Seung Mi, Yim, Dami, Lee, Byeong-Joo, Kim, Hyoung Seop
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier BV 01.05.2018
Subjects
Alloys
Annealing
Cold rolling
Crystal structure
Diffraction
Entropy
High entropy alloys
Homogenization
Intermetallic phases
X-ray diffraction
X-rays
Online AccessGet full text

Cover

More Information
Summary:In this work, the effects of homogenization annealing temperature of Al0.5CoCrFeMnNi HEA on cracking during cold-rolling were investigated. AlNi B2 phases were formed by low-temperature homogenization and affected the cracking phenomenon during cold-rolling. X-ray diffraction, microstructure, and composition analyses and thermodynamic calculations were conducted to identify the crystal structure of the alloy after the homogenization annealing treatment. The phase fraction and hardness of the homogenized alloy confirmed that the formation of the AlNi B2 phase induces cracking during cold-rolling of the Al0.5CoCrFeMnNi alloy. High-temperature annealing for homogenization of the alloy is recommended to prevent cracking during cold-rolling.
ISSN:0254-0584
1879-3312