Effect of cobalt on chemical segregation and solution process in Re-containing single crystal superalloys

IMR OpenIR

	Effect of cobalt on chemical segregation and solution process in Re-containing single crystal superalloys
	Wang Wen-zhen ; Jin Tao ; Zhao Nai-ren ; Wang Zhi-hui ; Sun Xiao-feng ; Guan Heng-rong ; Hu Zhuang-qi
通讯作者	Wang Wen-zhen(wzhwang@imr.ac.cn)
	2006-12-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	16 页码:S1978-S1981
摘要	The effect of cobalt on chemical segregation and solution process in three nickel base single crystal superalloys was investigated. Three alloys containing the mass fraction of cobalt of 12% (named Alloy 1), 3% (named Alloy 2) and 0 (named Alloy 3), respectively were studied, in which the contents of other elements were same. The results show that the segregation extent of W, Re, Ta, Al between dendrite and interdendritic region rises with the increase of cobalt content. The incipient melting points decrease by 10 degrees C and 20 degrees C respectively when the content of cobalt increases from 0 through 3% to 12%. During solid solution at 1 340 degrees C, the solid solution of large gamma prime in interdendritic region and the dissolution of eutectic in alloy I become easier than in other two alloys. After heat-treatment at 1 340 degrees C for 8 h, the segregation extent of elements in alloy 1 decreases dramatically, while in alloy 2 and alloy 3, the segregation ratios decrease slowly. It suggests that the higher content of cobalt can accelerate the diffusion process at high temperature.
关键词	single crystal superalloy cobalt chemical segregation
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000244524400168
出版者	ALLERTON PRESS INC
引用统计	被引频次：4[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/321006/87136
专题	中国科学院金属研究所
通讯作者	Wang Wen-zhen
作者单位	1.Chinese Acad Sci, Inst Met Res, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wang Wen-zhen,Jin Tao,Zhao Nai-ren,et al. Effect of cobalt on chemical segregation and solution process in Re-containing single crystal superalloys[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2006,16:S1978-S1981.
APA	Wang Wen-zhen.,Jin Tao.,Zhao Nai-ren.,Wang Zhi-hui.,Sun Xiao-feng.,...&Hu Zhuang-qi.(2006).Effect of cobalt on chemical segregation and solution process in Re-containing single crystal superalloys.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,16,S1978-S1981.
MLA	Wang Wen-zhen,et al."Effect of cobalt on chemical segregation and solution process in Re-containing single crystal superalloys".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 16(2006):S1978-S1981.