| Microstructure, mechanical properties and multiphase synergistic strengthening mechanisms of a novel laser additive manufactured AlNi6TiZr alloy | |
Bi, Jiang1; Wu, Liukun1; Liu, Zeqi1; Wang, Haixiang1; Li, Shide2; Wang, Ji2; Yang, Zhuoyun1; Lu, Nannan3 ; Chen, Xi4; Starostenkov, Mikhail Dmitrievich5; Dong, Guojiang1
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| Corresponding Author | Lu, Nannan(nnlu@imr.ac.cn) ; Chen, Xi(chenxi_hit2016@163.com) ; Dong, Guojiang(dgj@ysu.edu.cn) |
| 2024-04-10 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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| ISSN | 1005-0302 |
| Volume | 178Pages:59-69 |
| Abstract | In this work, selective laser melting (SLM) process is used to prepare the AlNi6TiZr alloy. By analyzing the printing quality and mechanical properties of the printed specimens with different process parameters, the SLM forming window of AlNi6TiZr is obtained. The relative density of the sample printed with 270 W-1100 mm/s (laser energy density: 82 J/mm3) reaches 99.7%, exhibiting excellent mechanical properties (yield strength (YS): 421.7 MPa; ultimate tensile strength (UTS): 480.4 MPa). After an aging treatment of 325 degrees C-12 h, the YS and UTS of the sample increased to 494 MPa and 550.7 MPa, respectively. Adding Ni, Ti, and Zr components promoted the generation of multi-phase precipitates in the Al alloy and improved the synergistic strengthening effect of multi-phases. The hard-shell structure (HSS) formed by the Al3Ni phase at the grain boundary significantly strengthened the grain boundary strength. The precipitated Al3(Ti, Zr) phases at the grain boundaries prevent grain growth and dislocation movement. The Al3Ni and Al3(Ti, Zr) phases have good thermal stability that can still maintain excellent enhancement effects at high temperature. AlNi6TiZr alloy has great application prospects in medium and high-temperature environments.(c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Selective laser melting Al6NiTiZr alloy Microstructure Mechanical properties Thermal stability Strengthening mechanism |
| Funding Organization | Hebei Natural Science Foundation of China ; Special Project for Local Science and Technology Development Guided by the Central Government of Hebei Province |
| DOI | 10.1016/j.jmst.2023.08.033 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Hebei Natural Science Foundation of China[E2021203138] ; Special Project for Local Science and Technology Development Guided by the Central Government of Hebei Province[236Z1805G] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:001113100500001 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/177103 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Lu, Nannan; Chen, Xi; Dong, Guojiang |
| Affiliation | 1.Yanshan Univ, Key Lab Adv Forging & Stamping Technol & Sci, Minist Educ, Qinhuangdao 066004, Peoples R China 2.CIT Dicastal Co Ltd, Qinhuangdao 066004, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China 5.Altai State Tech Univ, Gen Phys Dept, Leninist 46, Barnaul 656099, Russia |
| Recommended Citation GB/T 7714 | Bi, Jiang,Wu, Liukun,Liu, Zeqi,et al. Microstructure, mechanical properties and multiphase synergistic strengthening mechanisms of a novel laser additive manufactured AlNi6TiZr alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,178:59-69. |
| APA | Bi, Jiang.,Wu, Liukun.,Liu, Zeqi.,Wang, Haixiang.,Li, Shide.,...&Dong, Guojiang.(2024).Microstructure, mechanical properties and multiphase synergistic strengthening mechanisms of a novel laser additive manufactured AlNi6TiZr alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,178,59-69. |
| MLA | Bi, Jiang,et al."Microstructure, mechanical properties and multiphase synergistic strengthening mechanisms of a novel laser additive manufactured AlNi6TiZr alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 178(2024):59-69. |
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