Knowledge Management System of Hefei Institute of Physical Science，CAS
| Microstructures, Thermal and Mechanical Properties of Pure Tungsten-A Comparison Between Selective Laser Melting and Hot Rolling | |
Wang, Chong1; Chen, Daobing1; Zhou, Yan2; Xie, Zhuoming3 ; Fang, Qianfeng3; Wen, Shifeng1; Yan, Chunze1
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| 2022-12-01 | |
| Source Publication | CHINESE JOURNAL OF MECHANICAL ENGINEERING
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| ISSN | 1000-9345 |
| Corresponding Author | Zhou, Yan(zhouyan@cug.edu.cn) ; Wen, Shifeng(roya_wen@hust.edu.cn) |
| Abstract | A comparative study on the influence of different manufacturing methods (selective laser melting and hot rolling) on the microstructure, mechanical and thermal behaviours of tungsten (W) was presented for the first time. The results indicated that the selective laser melting (SLM) W exhibited a finer grain sizes, a lower strength ductility, hardness and thermal conductivity compared to hot-rolled W. The main reason for this result was that the laser underwent rapid heating and cooling when it was used to melt W powder with high energy density, resulting in large internal stress in the sample after manufacturing. Subsequently, the internal stress was released, leading to the generation of micro-cracks at the grain boundaries, thereby affecting the performance of SLM W samples. In addition, the higher fraction of high-angle grain boundaries (HAGBs) of SLM W was found to be the key factor for intrinsic brittleness. Because the HAGBs are the preferred crack paths, which could promote crack propagation and decrease fracture energy. |
| Keyword | Tungsten (W) Selective laser melting (SLM) Hot rolling Microstructure Thermal conductivity Mechanical property |
| DOI | 10.1186/s10033-022-00712-5 |
| WOS Keyword | TENSILE PROPERTIES ; SHOCK RESISTANCE ; BEHAVIOR ; PHASE ; DENSIFICATION ; DISLOCATION ; SUPPRESSION ; PERFORMANCE ; COMPOSITE ; EVOLUTION |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[U1808216] ; Hubei Provincial Natural Science Foundation of China[2020CFB667] ; Hubei Provincial Key Research and Development Program of China[2020BAB045] ; Wuhan Second Ship Design and Research Institute[YT19201903] |
| Funding Organization | National Natural Science Foundation of China ; Hubei Provincial Natural Science Foundation of China ; Hubei Provincial Key Research and Development Program of China ; Wuhan Second Ship Design and Research Institute |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Mechanical |
| WOS ID | WOS:000790790200004 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.hfcas.ac.cn:8080/handle/334002/131534 |
| Collection | 中国科学院合肥物质科学研究院 |
| Corresponding Author | Zhou, Yan; Wen, Shifeng |
| Affiliation | 1.Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mold Technol, Wuhan 430074, Peoples R China 2.China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Chong,Chen, Daobing,Zhou, Yan,et al. Microstructures, Thermal and Mechanical Properties of Pure Tungsten-A Comparison Between Selective Laser Melting and Hot Rolling[J]. CHINESE JOURNAL OF MECHANICAL ENGINEERING,2022,35. |
| APA | Wang, Chong.,Chen, Daobing.,Zhou, Yan.,Xie, Zhuoming.,Fang, Qianfeng.,...&Yan, Chunze.(2022).Microstructures, Thermal and Mechanical Properties of Pure Tungsten-A Comparison Between Selective Laser Melting and Hot Rolling.CHINESE JOURNAL OF MECHANICAL ENGINEERING,35. |
| MLA | Wang, Chong,et al."Microstructures, Thermal and Mechanical Properties of Pure Tungsten-A Comparison Between Selective Laser Melting and Hot Rolling".CHINESE JOURNAL OF MECHANICAL ENGINEERING 35(2022). |
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