| Tailoring hierarchical microstructures to improve the strength and plasticity of a laser powder bed fusion additively manufactured Ti-6Al-4V alloy | |
| Lu, S. L.1,2; Zhang, Z. J.1,2; Liu, R.1; Qu, Z.1,2; Li, S. J.1,2; Zhou, X. H.1; Duan, Q. Q.1; Zhang, B. N.3; Zhao, X. M.3; Zhao, W.3; Ramasamy, P.4; Eckert, J.4,5; Zhang, Z. F.1,2 | |
| Corresponding Author | Zhang, Z. J.(zjzhang@imr.ac.cn) ; Zhang, Z. F.(zjzhang@imr.ac.cn) |
| 2023-06-05 | |
| Source Publication | ADDITIVE MANUFACTURING
 |
| ISSN | 2214-8604 |
| Volume | 71Pages:8 |
| Abstract | The coupling effect of hierarchical microstructural features at different length scales in a laser powder bed fusion (L-PBF) additively manufactured (AM) Ti-6Al-4 V alloy obfuscates the relation between microstructure and mechanical properties. In this study, the contributions of specific microstructures to the strength and plasticity are clarified by controlling hierarchical microstructures via two-stage heat treatments. It is interesting to find that the tensile strength is only determined by the content of fine alpha' martensites and the lath thickness, while the plasticity is influenced by the prior beta grain size and lath length. A synchronous improvement of strength and plasticity can be achieved by increasing the alpha' fraction and refining the prior beta grains and alpha laths. The present findings provide guidance for optimizing the overall mechanical properties of L-PBF AM fabricated titanium components. |
| Keyword | Laser powder bed fusion Titanium alloy Heat treatment Microstructure Mechanical properties |
| Funding Organization | Youth Innovation Promotion Association of CAS ; National Natural Science Foundation of China (NSFC) ; IMR Innovation Fund ; KC Wong Education Foundation ; Chinese Academy of Sciences ; Liaoning Unveiling and Commanding Science and Technology Plan ; National Key R & D Program of China ; National Research, Development, and Innovation Fund of Hungary |
| DOI | 10.1016/j.addma.2023.103603 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Youth Innovation Promotion Association of CAS[2021192] ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[52261135634] ; National Natural Science Foundation of China (NSFC)[U2241245] ; IMR Innovation Fund[2023-ZD01] ; IMR Innovation Fund[2021-PY05] ; KC Wong Education Foundation[GJTD-2020-09] ; Chinese Academy of Sciences[172GJHZ2022030MI] ; Liaoning Unveiling and Commanding Science and Technology Plan[2022-37] ; National Key R & D Program of China[2020YFA0710404] ; National Research, Development, and Innovation Fund of Hungary[2020-4.1.1-TKP2020] |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Manufacturing ; Materials Science, Multidisciplinary |
| WOS ID | WOS:001003339000001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/178277 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Z. J.; Zhang, Z. F. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Xian Bright Laser Technol Co Ltd, Xian 710000, Peoples R China 4.Austrian Acad Sci, Erich Schmid Inst Mat Sci, Jahnstr 12, A-8700 Leoben, Austria 5.Univ Leoben, Chair Mat Phys, Dept Mat Sci, Jahnstr 12, A-8700 Leoben, Austria |
| Recommended Citation GB/T 7714 | Lu, S. L.,Zhang, Z. J.,Liu, R.,et al. Tailoring hierarchical microstructures to improve the strength and plasticity of a laser powder bed fusion additively manufactured Ti-6Al-4V alloy[J]. ADDITIVE MANUFACTURING,2023,71:8. |
| APA | Lu, S. L..,Zhang, Z. J..,Liu, R..,Qu, Z..,Li, S. J..,...&Zhang, Z. F..(2023).Tailoring hierarchical microstructures to improve the strength and plasticity of a laser powder bed fusion additively manufactured Ti-6Al-4V alloy.ADDITIVE MANUFACTURING,71,8. |
| MLA | Lu, S. L.,et al."Tailoring hierarchical microstructures to improve the strength and plasticity of a laser powder bed fusion additively manufactured Ti-6Al-4V alloy".ADDITIVE MANUFACTURING 71(2023):8. |
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