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Fatigue crack growth behavior of beta-annealed Ti-6Al-2Sn-4Zr-xMo (x=2, 4 and 6) alloys: Influence of microstructure and stress ratio
Qiu, Jianke; Feng, Xin; Ma, Yingjie; Lei, Jiafeng; Liu, Yuyin; Huang, Aijun; Rugg, David; Yang, Rui; ryang@imr.ac.cn
2016
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
ISSN0142-1123
Volume83Pages:150-160
AbstractThe influence of microstructures (beta grain size, alpha/beta colony size and width of a lath) and stress ratios (R = 0.1, 0.7) on fatigue crack growth (FCG) behavior of beta-annealed Ti624x (x = 2, 4 and 6) alloys was investigated. The FCG rate curves, crack paths, and the plastic zone ahead of the crack tip were compared. The reducing FCG resistance from Ti6242 to Ti6246 was found to stem from decreasing alpha/beta colony size. Increasing stress ratio also reduced crack deflection and crack closure, and thus decreased the FCG resistance. The relevant mechanisms were discussed in terms of Kma and crack closure effect. (C) 2015 Elsevier Ltd. All rights reserved.
description.department[qiu, jianke ; feng, xin ; ma, yingjie ; lei, jiafeng ; liu, yuyin ; yang, rui] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [huang, aijun] baosteel co ltd, shanghai 200940, peoples r china ; [rugg, david] rolls royce plc, derby de24 8bj, england
KeywordTi624x Microstructure Fatigue Crack Growth Stress Ratio Crack Closure
Funding OrganizationNational Science Foundation of China [51171195]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74849
Collection中国科学院金属研究所
Corresponding Authorryang@imr.ac.cn
Recommended Citation
GB/T 7714
Qiu, Jianke,Feng, Xin,Ma, Yingjie,et al. Fatigue crack growth behavior of beta-annealed Ti-6Al-2Sn-4Zr-xMo (x=2, 4 and 6) alloys: Influence of microstructure and stress ratio[J]. INTERNATIONAL JOURNAL OF FATIGUE,2016,83:150-160.
APA Qiu, Jianke.,Feng, Xin.,Ma, Yingjie.,Lei, Jiafeng.,Liu, Yuyin.,...&ryang@imr.ac.cn.(2016).Fatigue crack growth behavior of beta-annealed Ti-6Al-2Sn-4Zr-xMo (x=2, 4 and 6) alloys: Influence of microstructure and stress ratio.INTERNATIONAL JOURNAL OF FATIGUE,83,150-160.
MLA Qiu, Jianke,et al."Fatigue crack growth behavior of beta-annealed Ti-6Al-2Sn-4Zr-xMo (x=2, 4 and 6) alloys: Influence of microstructure and stress ratio".INTERNATIONAL JOURNAL OF FATIGUE 83(2016):150-160.
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