Deformation mechanism diagram and deformation instability of a Mo–Re alloy during the hot compression

Jun Wu; Congqing Liu; Yong He; Junsong Zhang; Xing Yin; Ke Huang; Baifeng Luan; Jingjing Liao

Journal of Materials Research and Technology (Sep 2024)

Deformation mechanism diagram and deformation instability of a Mo–Re alloy during the hot compression

Jun Wu,
Congqing Liu,
Yong He,
Junsong Zhang,
Xing Yin,
Ke Huang,
Baifeng Luan,
Jingjing Liao

Affiliations

Jun Wu: National Key Laboratory of Nuclear Reactor Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China; State Key Laboratory of Advanced Nuclear Energy Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China; Corresponding author. National Key Laboratory of Nuclear Reactor Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China.
Congqing Liu: School of Materials Science and Engineering, Chong Qing University, Chongqing, 404100, PR China
Yong He: National Key Laboratory of Nuclear Reactor Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China; State Key Laboratory of Advanced Nuclear Energy Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China
Junsong Zhang: National Key Laboratory of Nuclear Reactor Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China; State Key Laboratory of Advanced Nuclear Energy Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China
Xing Yin: National Key Laboratory of Nuclear Reactor Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China; State Key Laboratory of Advanced Nuclear Energy Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China
Ke Huang: School of Materials Science and Engineering, Si Chuan University, Chengdu, 610000, PR China
Baifeng Luan: School of Materials Science and Engineering, Chong Qing University, Chongqing, 404100, PR China
Jingjing Liao: National Key Laboratory of Nuclear Reactor Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China; State Key Laboratory of Advanced Nuclear Energy Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China; Corresponding author. National Key Laboratory of Nuclear Reactor Technology, Nuclear Power Institute of China, Chengdu, 610213, PR China.

Journal volume & issue: Vol. 32
pp. 2224 – 2233

Abstract

Read online

This study investigates the hot compression behavior of a molybdenum- Rhenium (Mo–Re) alloy, focusing on deformation mechanisms and instability. Utilizing electron backscattered diffraction (EBSD) and transmission electron microscope (TEM), we characterized the microstructure, grain orientation, and deformation behavior across temperatures (650, 750, 850, and 950 °C) and strain rates (0.01, 0.1, 1, and 10s-1). The study reveals that Mo–Re alloys exhibit high hot deformation resistance, necessitating optimal processing conditions for effective plastic deformation. Key findings by EBSD and TEM include the formation of dislocation networks and substructures enhancing grain plasticity. We established a constitutive equation and processing maps, providing valuable insights for industrial applications and future alloy development.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

About the journal

Abstract

Keywords