| Microstructure and finite element analysis of hot continuous rolling of doped tungsten rod | |
| Shao, Zheng-jie1; Liu, Hai-po1; He, Xiao-chun1; Zhou, Bing1; Li, Yang1; Zhang, Shang-zhou1; Li, Meng-jin2; Li, Shu-jun3 | |
| Corresponding Author | Li, Yang(liyangytu@163.com) ; Zhang, Shang-zhou(szzhangyt@163.com) |
| 2019-03-01 | |
| Source Publication | INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
 |
| ISSN | 1674-4799 |
| Volume | 26Issue:3Pages:369-376 |
| Abstract | The microstructures of doped tungsten deformed by multi-pass hot continuous rolling were investigated, and the stress and strain fields were simulated by finite element (FE) method. After the continuous rolling, the grains of the tungsten rod were refined, and the microhardness was improved; however, a ring region of abnormal grain growth was present at a distance of about 3/5R (R is the radius of the rod) from the center of the cross section. FE modeling results showed that the equivalent residual strains were minimum around the region of abnormal grain growth; this was due to the release of strain energy by severe plastic deformation, leading a situation where the migration force of grain boundaries was higher than the pinning force of potassium bubbles. By decreasing the initial rolling temperature and rolling speeds, the inhomogeneity of the equivalent residual stain decreased, improving the microstructure uniformity of the doped tungsten. |
| Keyword | doped tungsten continuous rolling microstructure finite element analysis equivalent residual strain |
| Funding Organization | Shandong Provincial Key Research and Development Program, China ; Shandong Provincial Natural Science Foundation, China |
| DOI | 10.1007/s12613-019-1746-4 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Shandong Provincial Key Research and Development Program, China[2017GGX20140] ; Shandong Provincial Natural Science Foundation, China[ZR2014JL031] ; Shandong Provincial Natural Science Foundation, China[ZR2018MEE016] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| WOS ID | WOS:000460845000013 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/132426 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Yang; Zhang, Shang-zhou |
| Affiliation | 1.Yantai Univ, Sch Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China 2.Weihai Multicrystal Tungsten & Molybdenum Technol, Weihai 264202, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Shao, Zheng-jie,Liu, Hai-po,He, Xiao-chun,et al. Microstructure and finite element analysis of hot continuous rolling of doped tungsten rod[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2019,26(3):369-376. |
| APA | Shao, Zheng-jie.,Liu, Hai-po.,He, Xiao-chun.,Zhou, Bing.,Li, Yang.,...&Li, Shu-jun.(2019).Microstructure and finite element analysis of hot continuous rolling of doped tungsten rod.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,26(3),369-376. |
| MLA | Shao, Zheng-jie,et al."Microstructure and finite element analysis of hot continuous rolling of doped tungsten rod".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 26.3(2019):369-376. |
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