| An anisotropic mesoscale model of fatigue failure in a titanium alloy containing duplex microstructure and hard alpha inclusions | |
| Hu, Dianyin1,2; Pan, Jinchao3; Mao, Jianxing1,2; Guo, Xiaojun4; Ji, Haibin5; Wang, Rongqiao2,3 | |
| Corresponding Author | Mao, Jianxing(maojx@buaa.edu.cn) |
| 2020-08-01 | |
| Source Publication | MATERIALS & DESIGN
 |
| ISSN | 0264-1275 |
| Volume | 193Pages:10 |
| Abstract | 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/). |
| Keyword | Multiscale modeling Fatigue failure Titanium alloy Duplex microstructure Hard alpha inclusion |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000568761300004 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/140556 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Mao, Jianxing |
| Affiliation | 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 |
| Recommended Citation 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. |
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