Microstructure-Dependent Local Fatigue Cracking Resistance of Bimodal Ti-6Al-4V Alloys

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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
发表期刊	ADVANCED ENGINEERING MATERIALS
ISSN	1438-1656
卷号	20 期号:4 页码:-
摘要	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.; 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.
部门归属	[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
关键词	Alpha/beta-titanium-alloy Growth-behavior Initiation Propagation Surfaces Geometry Texture Slip
学科领域	Materials Science, Multidisciplinary
资助者	National Natural Science Foundation of China (NSFC) [51571199, 51371180, 51771207]
收录类别	SCI
语种	英语
WOS记录号	WOS:000432225500019
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79378
专题	中国科学院金属研究所
通讯作者	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.
推荐引用方式 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):-.