LAPSE:2023.5056
Published Article
LAPSE:2023.5056
Interfacial Microstructure Analysis of AZ31 Magnesium Alloy during Plastic Deformation Bonding
February 23, 2023
Abstract
In this study, a plastic deformation process consisting of hot compression at 350 °C and heat treatment at 400 °C was performed to bond AZ31 magnesium alloy. Microstructural evolution around the bonding interface was systematically characterized to investigate the bonding process and clarify the bonding mechanism. When the plastic deformation strain reached 0.6, the bonding zone was full of fine dynamic recrystallized grains and the initial interface was eliminated. The post-heating treatments were conducted to achieve a sound interface bonding. The tensile tests and the corresponding fracture morphologies analysis indicated that the optimum holding time of heat treatment was 8 h. The interfacial bonding strength of the specimens holding for 8 h reached 164.7 MPa, an enhancement of about 9% compared with that of the specimens holding for 1 h. The microstructure analysis indicated that the bonding quality was affected by migration of the interfacial grain boundary (GB), the development of recrystallized grains and the evolution of interfacial oxides around the bonding area.
In this study, a plastic deformation process consisting of hot compression at 350 °C and heat treatment at 400 °C was performed to bond AZ31 magnesium alloy. Microstructural evolution around the bonding interface was systematically characterized to investigate the bonding process and clarify the bonding mechanism. When the plastic deformation strain reached 0.6, the bonding zone was full of fine dynamic recrystallized grains and the initial interface was eliminated. The post-heating treatments were conducted to achieve a sound interface bonding. The tensile tests and the corresponding fracture morphologies analysis indicated that the optimum holding time of heat treatment was 8 h. The interfacial bonding strength of the specimens holding for 8 h reached 164.7 MPa, an enhancement of about 9% compared with that of the specimens holding for 1 h. The microstructure analysis indicated that the bonding quality was affected by migration of the interfacial grain boundary (GB), the development of recrystallized grains and the evolution of interfacial oxides around the bonding area.
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Keywords
AZ31 magnesium alloy, bonding, grain boundary, interfacial microstructure, plastic deformation
Subject
Suggested Citation
Ren L, Li B, Chen Z, Gao S, Quan Y, Qian L. Interfacial Microstructure Analysis of AZ31 Magnesium Alloy during Plastic Deformation Bonding. (2023). LAPSE:2023.5056
Author Affiliations
Ren L: Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan University), Ministry of Education of China, Qinhuangdao 066004, China; School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Li B: Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan University), Ministry of Education of China, Qinhuangdao 066004, China; School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Chen Z: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China; Key Laboratory of Self-Lubricating Spherical Plain Bearing Technology of Hebei Province, Yanshan University, Qinhuangdao 066004, China
Gao S: Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan University), Ministry of Education of China, Qinhuangdao 066004, China; School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Quan Y: Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan University), Ministry of Education of China, Qinhuangdao 066004, China; School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Qian L: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
Li B: Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan University), Ministry of Education of China, Qinhuangdao 066004, China; School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Chen Z: School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China; Key Laboratory of Self-Lubricating Spherical Plain Bearing Technology of Hebei Province, Yanshan University, Qinhuangdao 066004, China
Gao S: Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan University), Ministry of Education of China, Qinhuangdao 066004, China; School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Quan Y: Key Laboratory of Advanced Forging & Stamping Technology and Science (Yanshan University), Ministry of Education of China, Qinhuangdao 066004, China; School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
Qian L: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
Journal Name
Processes
Volume
9
Issue
10
First Page
1857
Year
2021
Publication Date
2021-10-19
ISSN
2227-9717
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PII: pr9101857, Publication Type: Journal Article
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LAPSE:2023.5056
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https://doi.org/10.3390/pr9101857
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Feb 23, 2023
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