Journal
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
Volume 16, Issue -, Pages 442-450Publisher
ELSEVIER
DOI: 10.1016/j.jmrt.2021.12.007
Keywords
Thermo-mechanical processing; Powder plasma arc additive; manufacturing; Work hardening rate; Texture evolution; Recrystallization
Funding
- National Natural Science Foundation of China [51975419]
Ask authors/readers for more resources
The microstructure and texture evolution during thermo-mechanical processing and their relationship with the mechanical properties were investigated in the non-equiatomic CoCrFeNiAl0.4 high-entropy alloy. It was found that annealing twins play a significant role in the texture evolution, and the work hardening rate is relatively stable under 30%-45% plastic deformation.
The microstructure and texture evolution during thermo-mechanical processing (TMP) and their relationship with the mechanical properties in the non-equiatomic CoCrFeNiAl0.4 high-entropy alloy (HEA) were investigated. In this work, a combination of cold rolling and annealing technology was used to investigate the HEA which has been fabricated by powder plasma arc additive manufacturing (PPA-AM) in the deformed and recrystallized states. Microstructure and texture analysis were performed by electron backscatter diffraction. The mechanical properties were evaluated using static tensile testing. It was substantiated that annealing twins facilitates the transition from the cube texture to the shear texture and has a great influence on the evolution of texture after TMP. Based on the research of CoCrFeNiAl0.4 high-entropy alloy, thermo-mechanical processing under appropriate conditions can increase the work hardening rate, but the work hardening rate is relatively stable under 30%-45% plastic deformation. The correlation during TMP between mechanical properties and work hardening, texture evolution, and recrystallization was discussed. (c) 2021 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available