Mechanical properties and microstructures of W & ndash;TiC and W & ndash;Y2O3 alloys fabricated by hot-pressing sintering

doi:10.1016/j.msea.2021.141496

HFCAS OpenIR

	Mechanical properties and microstructures of W & ndash;TiC and W & ndash;Y2O3 alloys fabricated by hot-pressing sintering
	Xie, X. F.1,2; Jing, K.1,2; Xie, Z. M.1; Liu, R.1 ; Yang, J. F.1; Fang, Q. F.1; Liu, C. S.1; Wu, Xuebang1
	2021-07-05
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
通讯作者	Xie, Z. M.(zmxie@issp.ac.cn) ; Wu, Xuebang(xbwu@issp.ac.cn)
摘要	Bulk pure tungsten (W), W-0.5 wt%TiC (WTC05) and W-1 wt%Y2O3 (WY10) materials were prepared by a developed two-step hot-pressing (HP) sintering method. Metallographic observation, SEM and TEM characterization were conducted to obtain the information of material microstructures. The results indicate that a small amount of TiC or Y2O3 addition could effectively improve the sinterability and reduce the grain size of the HP sintered WTC05 and WY10 alloys. The relative density of WTC05 and WY10 reaches as high as 99%, and the average grain size of WTC05 and WY10 are 2.61 mu m and 3.57 mu m, respectively, which are several times smaller than that of pure W. Among the three W materials, pure W has the poor tensile performance with insufficient strength and ductility, WTC05 has the highest tensile strength with the ultimate tensile strength of 1082 MPa at 300 degrees C, and WY10 has the best ductility and moderate strength. The relationship between the microstructures and the tensile properties has been investigated, and suggestions on microstructure parameters have been proposed for preparing high performance W-based materials.
关键词	Hot-pressing sintering W-TiC W-Y2O3 Mechanical property Microstructure
DOI	10.1016/j.msea.2021.141496
关键词[WOS]	PLASMA-FACING COMPONENTS ; TUNGSTEN ALLOYS ; TENSILE PROPERTIES ; IMPACT PROPERTIES ; COMPOSITES ; MOLYBDENUM ; DUCTILITY ; STRENGTH ; BEHAVIOR ; DIVERTOR
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFE0302400] ; National Key Research and Development Program of China[2019YFE03110200] ; National Key Research and Development Program of China[2017YFA0402800] ; National Natural Science Foundation of China[11735015] ; National Natural Science Foundation of China[51801203] ; National Natural Science Foundation of China[51671184] ; Anhui Provincial Natural Science Foundation[1908085J17] ; Science and Technology on Surface Physics and Chemistry Laboratory[JZX7Y201901SY00900103]
项目资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Science and Technology on Surface Physics and Chemistry Laboratory
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000668720400002
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/123395
专题	中国科学院合肥物质科学研究院
通讯作者	Xie, Z. M.; Wu, Xuebang
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Xie, X. F.,Jing, K.,Xie, Z. M.,et al. Mechanical properties and microstructures of W & ndash;TiC and W & ndash;Y2O3 alloys fabricated by hot-pressing sintering[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,819.
APA	Xie, X. F..,Jing, K..,Xie, Z. M..,Liu, R..,Yang, J. F..,...&Wu, Xuebang.(2021).Mechanical properties and microstructures of W & ndash;TiC and W & ndash;Y2O3 alloys fabricated by hot-pressing sintering.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,819.
MLA	Xie, X. F.,et al."Mechanical properties and microstructures of W & ndash;TiC and W & ndash;Y2O3 alloys fabricated by hot-pressing sintering".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 819(2021).