Effect of texture on the fatigue crack initiation of a Dual-Phase Titanium alloy

Fatigue indicator parameters (FIPs) can serve as a measure of fatigue crack initiation (FCI) in metals and alloys. FIPs are volume averaged over grains, bands, and sub bands in crystal plasticity (CP) simulation to investigate the influence of texture on FCI under low cycle fatigue. The equiaxed mic...

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Main Authors: Adam Ismaeel, Xuexiong Li, Dongsheng Xu, Jinhu Zhang, Rui Yang
Format: Article
Language:English
Published: Elsevier 2024-11-01
Series:Journal of Materials Research and Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2238785424024499
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author Adam Ismaeel
Xuexiong Li
Dongsheng Xu
Jinhu Zhang
Rui Yang
author_facet Adam Ismaeel
Xuexiong Li
Dongsheng Xu
Jinhu Zhang
Rui Yang
author_sort Adam Ismaeel
collection DOAJ
description Fatigue indicator parameters (FIPs) can serve as a measure of fatigue crack initiation (FCI) in metals and alloys. FIPs are volume averaged over grains, bands, and sub bands in crystal plasticity (CP) simulation to investigate the influence of texture on FCI under low cycle fatigue. The equiaxed microstructure of Ti–6Al–4V was generated with three different textures: basal, basal/transverse and transverse. FIPs analysis shows that basal texture has the highest FCI resistance, basal/transverse texture has intermediate resistance, and transverse texture has the lowest resistance when tested along plate direction. All textures exhibit a lower FIP when deformed along rolling direction (RD) than that along transverse direction (TD). The interior of the alloys has a larger FCI resistance than the free surface. Further analysis shows a strong relationship between FIP distribution features and damage nucleation characteristics, with basal texture exhibiting the lowest and wider FIP distributions as a result of high resistance to damage and fatigue cracking; in contrast, the transverse texture exhibits intense and narrow FIP and damage nucleation along the grain boundaries (GBs), basal/transverse texture exhibits FIP and damage nucleation with mixed characteristics. The results can be used as a theatrical reference for the fatigue performance design of Ti alloy.
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institution Kabale University
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publishDate 2024-11-01
publisher Elsevier
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series Journal of Materials Research and Technology
spelling doaj-art-0188a87176b047dfb2aad3a51b4384b82024-12-26T08:54:53ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013363196327Effect of texture on the fatigue crack initiation of a Dual-Phase Titanium alloyAdam Ismaeel0Xuexiong Li1Dongsheng Xu2Jinhu Zhang3Rui Yang4Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China; School of Mechanical and Electrical Engineering, Quanzhou University of Information Engineering, Quanzhou, 362000, ChinaInstitute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaInstitute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China; Corresponding author. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, ChinaInstitute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, ChinaFatigue indicator parameters (FIPs) can serve as a measure of fatigue crack initiation (FCI) in metals and alloys. FIPs are volume averaged over grains, bands, and sub bands in crystal plasticity (CP) simulation to investigate the influence of texture on FCI under low cycle fatigue. The equiaxed microstructure of Ti–6Al–4V was generated with three different textures: basal, basal/transverse and transverse. FIPs analysis shows that basal texture has the highest FCI resistance, basal/transverse texture has intermediate resistance, and transverse texture has the lowest resistance when tested along plate direction. All textures exhibit a lower FIP when deformed along rolling direction (RD) than that along transverse direction (TD). The interior of the alloys has a larger FCI resistance than the free surface. Further analysis shows a strong relationship between FIP distribution features and damage nucleation characteristics, with basal texture exhibiting the lowest and wider FIP distributions as a result of high resistance to damage and fatigue cracking; in contrast, the transverse texture exhibits intense and narrow FIP and damage nucleation along the grain boundaries (GBs), basal/transverse texture exhibits FIP and damage nucleation with mixed characteristics. The results can be used as a theatrical reference for the fatigue performance design of Ti alloy.http://www.sciencedirect.com/science/article/pii/S2238785424024499Ti-6Al–4V alloyCrystal plasticity: textureCyclic fatigueDamage nucleation
spellingShingle Adam Ismaeel
Xuexiong Li
Dongsheng Xu
Jinhu Zhang
Rui Yang
Effect of texture on the fatigue crack initiation of a Dual-Phase Titanium alloy
Journal of Materials Research and Technology
Ti-6Al–4V alloy
Crystal plasticity: texture
Cyclic fatigue
Damage nucleation
title Effect of texture on the fatigue crack initiation of a Dual-Phase Titanium alloy
title_full Effect of texture on the fatigue crack initiation of a Dual-Phase Titanium alloy
title_fullStr Effect of texture on the fatigue crack initiation of a Dual-Phase Titanium alloy
title_full_unstemmed Effect of texture on the fatigue crack initiation of a Dual-Phase Titanium alloy
title_short Effect of texture on the fatigue crack initiation of a Dual-Phase Titanium alloy
title_sort effect of texture on the fatigue crack initiation of a dual phase titanium alloy
topic Ti-6Al–4V alloy
Crystal plasticity: texture
Cyclic fatigue
Damage nucleation
url http://www.sciencedirect.com/science/article/pii/S2238785424024499
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