Effect of ultrasonic surface deep rolling combined with oxygen boost diffusion treatment on fatigue properties of pure titanium

Ultrasonic surface deep rolling (USDR), oxygen boost diffusion (OBD), and their combination (USDR-OBD) were all used to improve the surface hardening of pure titanium. The microstructure, microhardness, and fatigue life of pure titanium treated by USDR, OBD, and USDR-OBD methods were analyzed. USDR...

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Autores principales: Teng, Xue-Fei, Jia, Yun-Fei, Gong, Cong-Yang, Zhang, Cheng-Cheng, Zhang, Xian-Cheng, Tu, Shan-Tung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8426462/
https://www.ncbi.nlm.nih.gov/pubmed/34497308
http://dx.doi.org/10.1038/s41598-021-97255-x
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author Teng, Xue-Fei
Jia, Yun-Fei
Gong, Cong-Yang
Zhang, Cheng-Cheng
Zhang, Xian-Cheng
Tu, Shan-Tung
author_facet Teng, Xue-Fei
Jia, Yun-Fei
Gong, Cong-Yang
Zhang, Cheng-Cheng
Zhang, Xian-Cheng
Tu, Shan-Tung
author_sort Teng, Xue-Fei
collection PubMed
description Ultrasonic surface deep rolling (USDR), oxygen boost diffusion (OBD), and their combination (USDR-OBD) were all used to improve the surface hardening of pure titanium. The microstructure, microhardness, and fatigue life of pure titanium treated by USDR, OBD, and USDR-OBD methods were analyzed. USDR treatment induced a severe deformation area, while OBD treatment produced a brittle oxygen diffusion zone. The USDR-OBD treated samples approached the highest hardness in comparison with other treated samples. The fatigue lives of USDR treated samples were improved, which was due to the high compressive residual stress and refined grains. However, the fatigue lives of both OBD treated samples and USDR-OBD treated samples were decreased due to premature crack initiation and rapid propagation in the oxygen diffusion zone. Finally, the fatigue fracture mechanisms of different samples were proposed.
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spelling pubmed-84264622021-09-10 Effect of ultrasonic surface deep rolling combined with oxygen boost diffusion treatment on fatigue properties of pure titanium Teng, Xue-Fei Jia, Yun-Fei Gong, Cong-Yang Zhang, Cheng-Cheng Zhang, Xian-Cheng Tu, Shan-Tung Sci Rep Article Ultrasonic surface deep rolling (USDR), oxygen boost diffusion (OBD), and their combination (USDR-OBD) were all used to improve the surface hardening of pure titanium. The microstructure, microhardness, and fatigue life of pure titanium treated by USDR, OBD, and USDR-OBD methods were analyzed. USDR treatment induced a severe deformation area, while OBD treatment produced a brittle oxygen diffusion zone. The USDR-OBD treated samples approached the highest hardness in comparison with other treated samples. The fatigue lives of USDR treated samples were improved, which was due to the high compressive residual stress and refined grains. However, the fatigue lives of both OBD treated samples and USDR-OBD treated samples were decreased due to premature crack initiation and rapid propagation in the oxygen diffusion zone. Finally, the fatigue fracture mechanisms of different samples were proposed. Nature Publishing Group UK 2021-09-08 /pmc/articles/PMC8426462/ /pubmed/34497308 http://dx.doi.org/10.1038/s41598-021-97255-x Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Teng, Xue-Fei
Jia, Yun-Fei
Gong, Cong-Yang
Zhang, Cheng-Cheng
Zhang, Xian-Cheng
Tu, Shan-Tung
Effect of ultrasonic surface deep rolling combined with oxygen boost diffusion treatment on fatigue properties of pure titanium
title Effect of ultrasonic surface deep rolling combined with oxygen boost diffusion treatment on fatigue properties of pure titanium
title_full Effect of ultrasonic surface deep rolling combined with oxygen boost diffusion treatment on fatigue properties of pure titanium
title_fullStr Effect of ultrasonic surface deep rolling combined with oxygen boost diffusion treatment on fatigue properties of pure titanium
title_full_unstemmed Effect of ultrasonic surface deep rolling combined with oxygen boost diffusion treatment on fatigue properties of pure titanium
title_short Effect of ultrasonic surface deep rolling combined with oxygen boost diffusion treatment on fatigue properties of pure titanium
title_sort effect of ultrasonic surface deep rolling combined with oxygen boost diffusion treatment on fatigue properties of pure titanium
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8426462/
https://www.ncbi.nlm.nih.gov/pubmed/34497308
http://dx.doi.org/10.1038/s41598-021-97255-x
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