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Microstructure-Dependent Local Fatigue Cracking Resistance of Bimodal Ti-6Al-4V Alloys
Zeng, LR; Lei, LM; Yang, J; Luo, XM; Zhang, GP; Zhang, GP (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd Shenyang, Shenyang 110016, Liaoning, Peoples R China.
2018-04-01
Source PublicationADVANCED ENGINEERING MATERIALS
ISSN1438-1656
Volume20Issue:4Pages:-
AbstractThe fatigue crack growth behavior of the bimodal Ti-6Al-4V alloys with two different volume fractions of the primary phase (alpha(p)) of 76 and 36% is investigated by the in situ testing technique. The experimental results show that the crack growth rate of the alpha(p) = 36% Ti-6Al-4V alloy is lower than that of the alpha(p) = 76% one. The local fatigue crack growth rate is evidently decreased by the various boundaries including alpha(p) grain boundaries, boundaries between the alpha(p) phase and basketweave microstructure, and alpha/beta lamellar interfaces. A criterion associated with the boundary characteristics is obtained to evaluate the grain boundary resistance to the fatigue crack growth in the engineering alloys.; The fatigue crack growth behavior of the bimodal Ti-6Al-4V alloys with two different volume fractions of the primary phase (alpha(p)) of 76 and 36% is investigated by the in situ testing technique. The experimental results show that the crack growth rate of the alpha(p) = 36% Ti-6Al-4V alloy is lower than that of the alpha(p) = 76% one. The local fatigue crack growth rate is evidently decreased by the various boundaries including alpha(p) grain boundaries, boundaries between the alpha(p) phase and basketweave microstructure, and alpha/beta lamellar interfaces. A criterion associated with the boundary characteristics is obtained to evaluate the grain boundary resistance to the fatigue crack growth in the engineering alloys.
description.department[zeng, ling-rong ; yang, jia ; luo, xue-mei ; zhang, guang-ping] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd shenyang, shenyang 110016, liaoning, peoples r china ; [zeng, ling-rong ; yang, jia] univ chinese acad sci, 19a yuquan rd, beijing 100049, peoples r china ; [lei, li-ming] aecc shanghai commercial aircraft engine mfg co l, 77 hongyin rd, shanghai 201306, peoples r china
KeywordAlpha/beta-titanium-alloy Growth-behavior Initiation Propagation Surfaces Geometry Texture Slip
Subject AreaMaterials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51571199, 51371180, 51771207]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79378
Collection中国科学院金属研究所
Corresponding AuthorZhang, GP (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd Shenyang, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Zeng, LR,Lei, LM,Yang, J,et al. Microstructure-Dependent Local Fatigue Cracking Resistance of Bimodal Ti-6Al-4V Alloys[J]. ADVANCED ENGINEERING MATERIALS,2018,20(4):-.
APA Zeng, LR,Lei, LM,Yang, J,Luo, XM,Zhang, GP,&Zhang, GP .(2018).Microstructure-Dependent Local Fatigue Cracking Resistance of Bimodal Ti-6Al-4V Alloys.ADVANCED ENGINEERING MATERIALS,20(4),-.
MLA Zeng, LR,et al."Microstructure-Dependent Local Fatigue Cracking Resistance of Bimodal Ti-6Al-4V Alloys".ADVANCED ENGINEERING MATERIALS 20.4(2018):-.
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