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

CORC > 金属研究所 > 中国科学院金属研究所

	An anisotropic mesoscale model of fatigue failure in a titanium alloy containing duplex microstructure and hard alpha inclusions
	Hu, Dianyin 4,5; Pan, Jinchao 1; Mao, Jianxing 4,5; Guo, Xiaojun 2; Ji, Haibin 3; Wang, Rongqiao 1,5
刊名	MATERIALS & DESIGN
	2020-08-01
卷号	193 页码:10
关键词	Multiscale modeling Fatigue failure Titanium alloy Duplex microstructure Hard alpha inclusion
ISSN号	0264-1275
DOI	10.1016/j.matdes.2020.108844
通讯作者	Mao, Jianxing(maojx@buaa.edu.cn)
英文摘要	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/).
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
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000568761300004
资助机构	National Natural Science Foundation of China (NSFC) ; Aeronautics Power Foundation ; China Postdoctoral Science Foundation ; National Science and Technology Major Project
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140555]
专题	金属研究所_中国科学院金属研究所
通讯作者	Mao, Jianxing
作者单位	1.Beihang Univ, Sch Energy & Power Engn, Beijing 100191, Peoples R China 2.China Aviat Powerplant Res Inst, Zhuzhou 412002, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Beihang Univ, Aeroengine Res Inst, Beijing 100191, Peoples R China 5.Beijing Key Lab Aeroengine Struct & Strength, Beijing 100191, 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.