The microstructure and texture effects on fatigue behavior of AZ31B magnesium induced by pre-strain along radial direction

In this study, compressional pre-strain was conducted on fatigue samples extracted from the AZ31B rod along the radial direction (RD), leading to the alteration of microstructure and texture, of which the impact on ratcheting behavior and fatigue life under stress-controlled cyclic loading were inve...

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Main Authors: Guosheng Duan, Jinze Du, Linghui Song, Wenhan Jin, Naifu Zou, Xinghao Du
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785425002704
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author Guosheng Duan
Jinze Du
Linghui Song
Wenhan Jin
Naifu Zou
Xinghao Du
author_facet Guosheng Duan
Jinze Du
Linghui Song
Wenhan Jin
Naifu Zou
Xinghao Du
author_sort Guosheng Duan
collection DOAJ
description In this study, compressional pre-strain was conducted on fatigue samples extracted from the AZ31B rod along the radial direction (RD), leading to the alteration of microstructure and texture, of which the impact on ratcheting behavior and fatigue life under stress-controlled cyclic loading were investigated and discussed. The results demonstrated that with increasing pre-compression strain, the fatigue life increased and then decreased. The fatigue life was the longest when subjected to 2% pre-compression strain. This was primarily attributed to strain hardening caused by accumulation of dislocations and an appropriate amount of residual extension twins in the deformed structure. When pre-strain exceeds 4%, fatigue life were shortened as compared with that free of compressional pre-strain. In this case, the residual twins with large volume accelerate fatigue failure, thus reducing fatigue life. These findings provide valuable insights for the processing and application of magnesium alloys.
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institution Kabale University
issn 2238-7854
language English
publishDate 2025-03-01
publisher Elsevier
record_format Article
series Journal of Materials Research and Technology
spelling doaj-art-ef07ac1f4cb94e6699b26eb8c9efc9682025-02-12T05:31:12ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013533713383The microstructure and texture effects on fatigue behavior of AZ31B magnesium induced by pre-strain along radial directionGuosheng Duan0Jinze Du1Linghui Song2Wenhan Jin3Naifu Zou4Xinghao Du5School of Safety Engineering, Shenyang Aerospace University, Shenyang, 110136, China; Corresponding author. School of Safety Engineering, Shenyang Aerospace University, South Avenue of Daoyi, 110136, Shenyang, China.School of Safety Engineering, Shenyang Aerospace University, Shenyang, 110136, ChinaQilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, ChinaSchool of Materials Science and Engineering, Shenyang Aerospace University, Shenyang, 110136, ChinaSchool of Materials Science and Engineering, Shenyang Aerospace University, Shenyang, 110136, ChinaSchool of Materials Science and Engineering, Shenyang Aerospace University, Shenyang, 110136, ChinaIn this study, compressional pre-strain was conducted on fatigue samples extracted from the AZ31B rod along the radial direction (RD), leading to the alteration of microstructure and texture, of which the impact on ratcheting behavior and fatigue life under stress-controlled cyclic loading were investigated and discussed. The results demonstrated that with increasing pre-compression strain, the fatigue life increased and then decreased. The fatigue life was the longest when subjected to 2% pre-compression strain. This was primarily attributed to strain hardening caused by accumulation of dislocations and an appropriate amount of residual extension twins in the deformed structure. When pre-strain exceeds 4%, fatigue life were shortened as compared with that free of compressional pre-strain. In this case, the residual twins with large volume accelerate fatigue failure, thus reducing fatigue life. These findings provide valuable insights for the processing and application of magnesium alloys.http://www.sciencedirect.com/science/article/pii/S2238785425002704Fatigue lifeMicrostructureTextureRatchetting strainPre-strain
spellingShingle Guosheng Duan
Jinze Du
Linghui Song
Wenhan Jin
Naifu Zou
Xinghao Du
The microstructure and texture effects on fatigue behavior of AZ31B magnesium induced by pre-strain along radial direction
Journal of Materials Research and Technology
Fatigue life
Microstructure
Texture
Ratchetting strain
Pre-strain
title The microstructure and texture effects on fatigue behavior of AZ31B magnesium induced by pre-strain along radial direction
title_full The microstructure and texture effects on fatigue behavior of AZ31B magnesium induced by pre-strain along radial direction
title_fullStr The microstructure and texture effects on fatigue behavior of AZ31B magnesium induced by pre-strain along radial direction
title_full_unstemmed The microstructure and texture effects on fatigue behavior of AZ31B magnesium induced by pre-strain along radial direction
title_short The microstructure and texture effects on fatigue behavior of AZ31B magnesium induced by pre-strain along radial direction
title_sort microstructure and texture effects on fatigue behavior of az31b magnesium induced by pre strain along radial direction
topic Fatigue life
Microstructure
Texture
Ratchetting strain
Pre-strain
url http://www.sciencedirect.com/science/article/pii/S2238785425002704
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