Microstructure and finite element analysis of hot continuous rolling of doped tungsten rod

doi:10.1007/s12613-019-1746-4

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	Microstructure and finite element analysis of hot continuous rolling of doped tungsten rod
	Shao, Zheng-jie 1; Liu, Hai-po 1; He, Xiao-chun 1; Zhou, Bing 1; Li, Yang 1; Zhang, Shang-zhou 1; Li, Meng-jin 2; Li, Shu-jun 3
刊名	INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
	2019-03-01
卷号	26 期号:3 页码:369-376
关键词	doped tungsten continuous rolling microstructure finite element analysis equivalent residual strain
ISSN号	1674-4799
DOI	10.1007/s12613-019-1746-4
通讯作者	Li, Yang(liyangytu@163.com) ; Zhang, Shang-zhou(szzhangyt@163.com)
英文摘要	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.
资助项目	Shandong Provincial Key Research and Development Program, China[2017GGX20140] ; Shandong Provincial Natural Science Foundation, China[ZR2014JL031] ; Shandong Provincial Natural Science Foundation, China[ZR2018MEE016]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000460845000013
资助机构	Shandong Provincial Key Research and Development Program, China ; Shandong Provincial Natural Science Foundation, China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132425]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Yang; Zhang, Shang-zhou
作者单位	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
推荐引用方式 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.