Transverse mechanical properties and microstructure of 1500 mm wide AZ31 magnesium alloy plate and its evolution during industrial rolling

The 1500 mm-wide AZ31 magnesium alloy plate is an important material for the molding of large shell components.In the industrial rolling process, the wider the plate, the more uneven the temperature and stress distribution are in the width direction during the industrial rolling process, which resul...

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Main Authors: Weitao Jia, Xinyan Liu, Chao Xin, Cheng Zhao, Lifeng Ma, Zhiquan Huang, Fangkun Ning, Junyi Lei, Rui Zhao
Format: Article
Language:English
Published: Elsevier 2023-11-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785423028077
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author Weitao Jia
Xinyan Liu
Chao Xin
Cheng Zhao
Lifeng Ma
Zhiquan Huang
Fangkun Ning
Junyi Lei
Rui Zhao
author_facet Weitao Jia
Xinyan Liu
Chao Xin
Cheng Zhao
Lifeng Ma
Zhiquan Huang
Fangkun Ning
Junyi Lei
Rui Zhao
author_sort Weitao Jia
collection DOAJ
description The 1500 mm-wide AZ31 magnesium alloy plate is an important material for the molding of large shell components.In the industrial rolling process, the wider the plate, the more uneven the temperature and stress distribution are in the width direction during the industrial rolling process, which results in poor mechanical properties and an uneven microstructure. In this paper, the mechanical properties and microstructure evolution along the width direction during a single-pass rolling process (6–3 mm) of this plate were qualitatively and quantitatively investigated. Additionally, a cellular automaton (CA) model was used to reproduce the grain distribution along the width direction. The result shows that there is a significant difference in the elongation of different parts of the plates along the wide direction, and the elongation of the center part is significantly higher than the edge, which is related to the uneven microstructure distribution. The average grain size from the edge to the center shows a tendency of increase and then decrease, and the degree of grain refinement has increased. The number of twins increased in the edge part, showing a typical mixed grain state with poor unevenness. Further CA shows that the average grain size and percentage of dynamic recrystallization increase and then decrease from the center to the edge. The parts 0–250 mm and 625–700 mm from the edge are fine-grained (average grain size less than 1 μm) and account for about 46 % of the plate. These parts are preferred for the subsequent further processing of rolled plates.
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spelling doaj.art-d8280ec5697b40389b3146a8b65408de2024-02-21T05:27:33ZengElsevierJournal of Materials Research and Technology2238-78542023-11-012772717279Transverse mechanical properties and microstructure of 1500 mm wide AZ31 magnesium alloy plate and its evolution during industrial rollingWeitao Jia0Xinyan Liu1Chao Xin2Cheng Zhao3Lifeng Ma4Zhiquan Huang5Fangkun Ning6Junyi Lei7Rui Zhao8College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China; Heavy Machinery Engineering Research Center of the Ministry of Education, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of ChinaCollege of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China; Corresponding author. College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China.College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of ChinaCollege of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of ChinaCollege of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China; Heavy Machinery Engineering Research Center of the Ministry of Education, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China; Corresponding author. College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China.College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China; Heavy Machinery Engineering Research Center of the Ministry of Education, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China; Corresponding author. College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China.College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China; Heavy Machinery Engineering Research Center of the Ministry of Education, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of ChinaCollege of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of ChinaCollege of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of ChinaThe 1500 mm-wide AZ31 magnesium alloy plate is an important material for the molding of large shell components.In the industrial rolling process, the wider the plate, the more uneven the temperature and stress distribution are in the width direction during the industrial rolling process, which results in poor mechanical properties and an uneven microstructure. In this paper, the mechanical properties and microstructure evolution along the width direction during a single-pass rolling process (6–3 mm) of this plate were qualitatively and quantitatively investigated. Additionally, a cellular automaton (CA) model was used to reproduce the grain distribution along the width direction. The result shows that there is a significant difference in the elongation of different parts of the plates along the wide direction, and the elongation of the center part is significantly higher than the edge, which is related to the uneven microstructure distribution. The average grain size from the edge to the center shows a tendency of increase and then decrease, and the degree of grain refinement has increased. The number of twins increased in the edge part, showing a typical mixed grain state with poor unevenness. Further CA shows that the average grain size and percentage of dynamic recrystallization increase and then decrease from the center to the edge. The parts 0–250 mm and 625–700 mm from the edge are fine-grained (average grain size less than 1 μm) and account for about 46 % of the plate. These parts are preferred for the subsequent further processing of rolled plates.http://www.sciencedirect.com/science/article/pii/S22387854230280771500 mm wide AZ31 magnesium alloy plateIndustrial rollingProperties and microstructureCellular automaton
spellingShingle Weitao Jia
Xinyan Liu
Chao Xin
Cheng Zhao
Lifeng Ma
Zhiquan Huang
Fangkun Ning
Junyi Lei
Rui Zhao
Transverse mechanical properties and microstructure of 1500 mm wide AZ31 magnesium alloy plate and its evolution during industrial rolling
Journal of Materials Research and Technology
1500 mm wide AZ31 magnesium alloy plate
Industrial rolling
Properties and microstructure
Cellular automaton
title Transverse mechanical properties and microstructure of 1500 mm wide AZ31 magnesium alloy plate and its evolution during industrial rolling
title_full Transverse mechanical properties and microstructure of 1500 mm wide AZ31 magnesium alloy plate and its evolution during industrial rolling
title_fullStr Transverse mechanical properties and microstructure of 1500 mm wide AZ31 magnesium alloy plate and its evolution during industrial rolling
title_full_unstemmed Transverse mechanical properties and microstructure of 1500 mm wide AZ31 magnesium alloy plate and its evolution during industrial rolling
title_short Transverse mechanical properties and microstructure of 1500 mm wide AZ31 magnesium alloy plate and its evolution during industrial rolling
title_sort transverse mechanical properties and microstructure of 1500 mm wide az31 magnesium alloy plate and its evolution during industrial rolling
topic 1500 mm wide AZ31 magnesium alloy plate
Industrial rolling
Properties and microstructure
Cellular automaton
url http://www.sciencedirect.com/science/article/pii/S2238785423028077
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