Effects of Ta on the solidification behavior and microstructure of a rhenium-containing hot corrosion resistant single crystal

doi:10.1007/s12613-019-1817-6

IMR OpenIR

	Effects of Ta on the solidification behavior and microstructure of a rhenium-containing hot corrosion resistant single crystal
	Ma, Shi-hua 1,2; Hao, Hong-quan 3; Wang, Dong 1; Lou, Lang-hong 1; Zhang, Jian 1
通讯作者	Wang, Dong(dwang@imr.ac.cn)
	2019-07-01
发表期刊	INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN	1674-4799
卷号	26 期号:7 页码:901-907
摘要	The effects of Ta on the solidification microstructure of the Re-containing hot corrosion resistant Ni-base single crystal were investigated. Results showed that Ta addition significantly modified the solidification behavior and further influenced the as-cast microstructure. Ta addition changed the solidification characteristic temperatures and decreased the segregation of refractory elements (Re and W) as well as increased the solidification temperature range from 39.0 to 61.8 degrees C as Ta addition increased from 2wt% to 8wt%. The integration of these two factors increased the primary dendrite arm spacing and changed the morphology and size of gamma ' precipitates. With increasing Ta addition from 2wt% to 8wt%, the size of gamma ' precipitates in the dendrite core increased substantially from 0.24 to 0.40 mu m, whereas the gamma ' precipitates in the interdendritic region decreased slightly from 0.56 to 0.47 mu m. This paper then discussed the mechanism of these Ta effects.
关键词	superalloys tantalum solidification behavior microstructure
资助者	National Natural Science Foundation of China ; National Key Research and Development Program of China
DOI	10.1007/s12613-019-1817-6
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51631008] ; National Key Research and Development Program of China[2016YFB0701403]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS记录号	WOS:000474396200011
出版者	SPRINGER
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/134456
专题	中国科学院金属研究所
通讯作者	Wang, Dong
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Natl Nat Sci Fdn China, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Ma, Shi-hua,Hao, Hong-quan,Wang, Dong,et al. Effects of Ta on the solidification behavior and microstructure of a rhenium-containing hot corrosion resistant single crystal[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2019,26(7):901-907.
APA	Ma, Shi-hua,Hao, Hong-quan,Wang, Dong,Lou, Lang-hong,&Zhang, Jian.(2019).Effects of Ta on the solidification behavior and microstructure of a rhenium-containing hot corrosion resistant single crystal.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,26(7),901-907.
MLA	Ma, Shi-hua,et al."Effects of Ta on the solidification behavior and microstructure of a rhenium-containing hot corrosion resistant single crystal".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 26.7(2019):901-907.