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Crystals
Volume 12
Issue 2
10.3390/cryst12020208
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Communication

Microstructural Effects on Thermal-Mechanical Alleviation of Cold Dwell Fatigue in Titanium Alloys

by
Songlin Shen
1,
Mei Zhan
1,
Pengfei Gao
1,
Wenshuo Hao
1,
Fionn P. E. Dunne
2 and
Zebang Zheng
1,*
1
State Key Laboratory of Solidification Processing, Shaanxi Key Laboratory of High-Performance Precision Forming Technology and Equipment, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
2
Department of Materials, Imperial College London, London SW7 2AZ, UK
*
Author to whom correspondence should be addressed.
Crystals 2022, 12(2), 208; https://doi.org/10.3390/cryst12020208
Submission received: 6 January 2022 / Revised: 26 January 2022 / Accepted: 28 January 2022 / Published: 30 January 2022
(This article belongs to the Special Issue Mechanical Properties of Advanced Metallic Materials)
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Abstract

Cold dwell fatigue is a well-known problem in the titanium components of aircraft engines. The high temperature and low dwell stress of in-service conditions have been reported to give rise to dwell fatigue resistance through a thermal-mechanical alleviation process. Here, dwell fatigue tests at room temperature and the component operating temperature were performed on IMI834 titanium alloy to assess the microstructural effects on thermal-mechanical alleviation of cold dwell fatigue while eliminating the effect of chemical composition. The ratcheting strain rates under different loading conditions were quantitatively investigated to aid the understanding of thermal-mechanical alleviation.
Keywords: low cycle fatigue; microstructure; titanium alloys; thermal-mechanical alleviation low cycle fatigue; microstructure; titanium alloys; thermal-mechanical alleviation

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MDPI and ACS Style

Shen, S.; Zhan, M.; Gao, P.; Hao, W.; Dunne, F.P.E.; Zheng, Z. Microstructural Effects on Thermal-Mechanical Alleviation of Cold Dwell Fatigue in Titanium Alloys. Crystals 2022, 12, 208. https://doi.org/10.3390/cryst12020208

AMA Style

Shen S, Zhan M, Gao P, Hao W, Dunne FPE, Zheng Z. Microstructural Effects on Thermal-Mechanical Alleviation of Cold Dwell Fatigue in Titanium Alloys. Crystals. 2022; 12(2):208. https://doi.org/10.3390/cryst12020208

Chicago/Turabian Style

Shen, Songlin, Mei Zhan, Pengfei Gao, Wenshuo Hao, Fionn P. E. Dunne, and Zebang Zheng. 2022. "Microstructural Effects on Thermal-Mechanical Alleviation of Cold Dwell Fatigue in Titanium Alloys" Crystals 12, no. 2: 208. https://doi.org/10.3390/cryst12020208

APA Style

Shen, S., Zhan, M., Gao, P., Hao, W., Dunne, F. P. E., & Zheng, Z. (2022). Microstructural Effects on Thermal-Mechanical Alleviation of Cold Dwell Fatigue in Titanium Alloys. Crystals, 12(2), 208. https://doi.org/10.3390/cryst12020208

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