Effect of laser power on the microstructure and mechanical properties of laser-assisted cold sprayed 7075 aluminum alloy deposits
文献类型：期刊论文
| 作者 | Wang, Kang1,2; Zhao, Lijia1,2; Mao, Tianliang1; Cui, Xinyu1; Wang, Jiqiang1; Xiong, Tianying1 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2023-07-10 |
| 卷号 | 879页码:15 |
| 关键词 | Laser-assisted cold spray 7075 alloy Microstructure evolution Mechanical properties Strengthening mechanisms |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2023.145224 |
| 通讯作者 | Wang, Jiqiang(jqwang11s@imr.ac.cn) |
| 英文摘要 | 7075 aluminum alloy deposits were fabricated using a solid-state additive manufacturing (AM) technology called laser-assisted cold spray (LACS). The effect of laser power on the microstructure evolution and mechanical property in the LACSed 7075 deposits was investigated. The microstructure of all deposits was analyzed by optical microscopy (OM), X-ray diffraction (XRD), and scanning electron microscopy (SEM) attached with energy dispersive spectroscopy (EDS) and electron backscatter diffraction (EBSD) systems. Pull-off adhesion, microhardness, and tensile tests were performed to assess their mechanical behaviors. The deposits showed a virtually linear increase in thickness with increased laser power and a minimum porosity of about 0.2%. With the accelerated diffusion of solute elements in deposits, lamellar & eta; phase - Mg(Zn, Cu, Al)2 and Al7Cu2Fe precipitated along grain boundaries at 2.6 kW eventually. Meanwhile, significant grain growth and recrystallization were initiated at the severely deformed prior-particle interfaces. All the LACSed deposits exhibited a noticeable increase in adhesion strength and a slight decrease in microhardness compared to the CSed one. The ultimate tensile strength (UTS) and elongation to fracture (EL) were improved by up to -46% and -35% in LACSed 7075 deposits. The relationship between mechanical properties and microstructure and the contribution of underlying strengthening mechanisms involved in the LACS process were then thoroughly discussed. |
| 资助项目 | Natural Science Foundation of Liaoning Province, China ; [2021-MS-002] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001058241000001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Natural Science Foundation of Liaoning Province, China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/179044]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Jiqiang |
| 作者单位 | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Kang,Zhao, Lijia,Mao, Tianliang,et al. Effect of laser power on the microstructure and mechanical properties of laser-assisted cold sprayed 7075 aluminum alloy deposits[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2023,879:15. |
| APA | Wang, Kang,Zhao, Lijia,Mao, Tianliang,Cui, Xinyu,Wang, Jiqiang,&Xiong, Tianying.(2023).Effect of laser power on the microstructure and mechanical properties of laser-assisted cold sprayed 7075 aluminum alloy deposits.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,879,15. |
| MLA | Wang, Kang,et al."Effect of laser power on the microstructure and mechanical properties of laser-assisted cold sprayed 7075 aluminum alloy deposits".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 879(2023):15. |
入库方式： OAI收割
来源：金属研究所
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