An anisotropic mesoscale model of fatigue failure in a titanium alloy containing duplex microstructure and hard alpha inclusions

doi:10.1016/j.matdes.2020.108844

IMR OpenIR

	An anisotropic mesoscale model of fatigue failure in a titanium alloy containing duplex microstructure and hard alpha inclusions
	Hu, Dianyin 1,2; Pan, Jinchao 3; Mao, Jianxing 1,2; Guo, Xiaojun 4; Ji, Haibin 5; Wang, Rongqiao 2,3
通讯作者	Mao, Jianxing(maojx@buaa.edu.cn)
	2020-08-01
发表期刊	MATERIALS & DESIGN
ISSN	0264-1275
卷号	193 页码:10
摘要	Fatigue life estimation on hard alpha inclusion induced failure in titanium alloy remains in long-term interest, due to the local stress distribution induced by the interaction between inclusion and surface as well as the scatter in randomly oriented grains. In this paper, an anisotropic mesoscale model is established to describe the fatigue failure of typical bi-phase titanium alloy with hard alpha inclusion. The stress-life criterion is formulated by dislocation stress field elaborated from anisotropic fracture mechanics, taking in random variables to represent the scatter in grain size and orientation. Parameters include microstructures characterized by microscope, dislocation slip properties evaluated by molecular dynamics (MD) simulation, and information of activated slip system via crystal plasticity finite element method (CPFEM) simulation. By using the data of specimens with and without inclusion, the proposed model exhibits excellent capability in fatigue life prediction for a wide range of stress ratio. This work draws insights on physics-based life prediction for inclusion induced fatigue failure. (c) 2020 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
关键词	Multiscale modeling Fatigue failure Titanium alloy Duplex microstructure Hard alpha inclusion
资助者	National Natural Science Foundation of China (NSFC) ; Aeronautics Power Foundation ; China Postdoctoral Science Foundation ; National Science and Technology Major Project
DOI	10.1016/j.matdes.2020.108844
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[51905020] ; Aeronautics Power Foundation[6141B09050378] ; China Postdoctoral Science Foundation[2019M650442] ; National Science and Technology Major Project[2017-IV-0004-0041]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000568761300004
出版者	ELSEVIER SCI LTD
引用统计	被引频次：13[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/321006/140556
专题	中国科学院金属研究所
通讯作者	Mao, Jianxing
作者单位	1.Beihang Univ, Aeroengine Res Inst, Beijing 100191, Peoples R China 2.Beijing Key Lab Aeroengine Struct & Strength, Beijing 100191, Peoples R China 3.Beihang Univ, Sch Energy & Power Engn, Beijing 100191, Peoples R China 4.China Aviat Powerplant Res Inst, Zhuzhou 412002, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Hu, Dianyin,Pan, Jinchao,Mao, Jianxing,et al. An anisotropic mesoscale model of fatigue failure in a titanium alloy containing duplex microstructure and hard alpha inclusions[J]. MATERIALS & DESIGN,2020,193:10.
APA	Hu, Dianyin,Pan, Jinchao,Mao, Jianxing,Guo, Xiaojun,Ji, Haibin,&Wang, Rongqiao.(2020).An anisotropic mesoscale model of fatigue failure in a titanium alloy containing duplex microstructure and hard alpha inclusions.MATERIALS & DESIGN,193,10.
MLA	Hu, Dianyin,et al."An anisotropic mesoscale model of fatigue failure in a titanium alloy containing duplex microstructure and hard alpha inclusions".MATERIALS & DESIGN 193(2020):10.