Effects of oxygen on microstructure and mechanical properties of selective laser melted Ti-6Al-4V annealed at different temperatures
文献类型：期刊论文
| 作者 | Nurly, Hasfi F.1,2; Ren, Dechun2; Cai, Yusheng2; Ji, Haibin2; Wang, Hao3; Huang, Aijun4; Yang, Rui1,2,5 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 894页码:16 |
| 关键词 | Selective laser melting Ti-6Al-4V Annealing Oxygen content Mechanical properties |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2024.146170 |
| 通讯作者 | Ji, Haibin(hbji@imr.ac.cn) ; Yang, Rui(yangrui@shanghaitech.edu.cn) |
| 英文摘要 | For SLMed Ti-6Al-4V-xO (x = 0.11, 0.16, 0.21, and 0.25 wt%) alloys, both microstructure and mechanical properties are sensitive to oxygen content. The alpha ' martensites in as-built state transform to a 'bimodal' microstructure containing alpha lamellae interspersed with beta transformed regions after 2 h annealing at 800 degree celsius, 850 degree celsius, 900 degree celsius, and 950 degree celsius followed by air cooling. The alpha lamellar width decreases and the beta phase volume fraction increases with increasing oxygen content, due to reduced diffusivity of Al and V. The solid solution hardening effect of oxygen was quantified as: sigma(0) = 472MPa + 2159c(0.5), where sigma(0) is the lattice frictional stress and c is oxygen atomic fraction of the alloy. Increased oxygen content causes reduced fracture toughness and higher fatigue crack growth rate in the unstable growth regime, and the appearance of bilinear growth rate of the Paris regime at high annealing temperatures. The absence of the bilinear behaviour in the low oxygen content alloy and for annealing at low temperatures was interpreted in terms of changes in microstructural characteristics caused by oxygen impeding the diffusion of Al and V. |
| 资助项目 | National Key Research and Development Program of China[2023YFB4603300] ; National Key Research and Development Program of China[2023YFB4603303] ; National Natural Science Foundation of China[52205431] ; CAS Interdisciplinary Innovation Team Project[JCTD-2020-10] ; CAS- TWAS President 's Fellowship for International PhD Students |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001178737400001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; CAS Interdisciplinary Innovation Team Project ; CAS- TWAS President 's Fellowship for International PhD Students |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ji, Haibin; Yang, Rui |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, Shanghai 200093, Peoples R China 4.Monash Univ, Monash Ctr Addit Mfg MCAM, Clayton, Vic 3800, Australia 5.ShanghaiTech Univ, Ctr Adapt Syst Engn, Shanghai 201210, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nurly, Hasfi F.,Ren, Dechun,Cai, Yusheng,et al. Effects of oxygen on microstructure and mechanical properties of selective laser melted Ti-6Al-4V annealed at different temperatures[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,894:16. |
| APA | Nurly, Hasfi F..,Ren, Dechun.,Cai, Yusheng.,Ji, Haibin.,Wang, Hao.,...&Yang, Rui.(2024).Effects of oxygen on microstructure and mechanical properties of selective laser melted Ti-6Al-4V annealed at different temperatures.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,894,16. |
| MLA | Nurly, Hasfi F.,et al."Effects of oxygen on microstructure and mechanical properties of selective laser melted Ti-6Al-4V annealed at different temperatures".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 894(2024):16. |
入库方式： OAI收割
来源：金属研究所
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