Influence of Directionally Solidified Process on Porosity in the Cross-Section Transitions of Ni-Based Superalloy DZ417G

IMR OpenIR

	Influence of Directionally Solidified Process on Porosity in the Cross-Section Transitions of Ni-Based Superalloy DZ417G
	Wang Yongfeng 1,2; Meng Xiangbin 1; Li Jinguo 1; Liu Xinggang 2; Wang Fan 3; Jin Tao 1; Sun Xiaofeng 1
通讯作者	Li Jinguo(jgli@imr.ac.cn)
	2016-05-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	45 期号:5 页码:1264-1270
摘要	The influence of directionally solidified process on porosity in cross-section transitions of dummy blade nickel-based superalloy DZ417G was investigated. It is found that the content of porosity at transition platform near the central runner is an order of magnitude higher than that near the heater. In a certain casting temperature range (1480 similar to 1580 degrees C), with the increase of casting temperature, the content of porosity at transition platform near the central runner increases at first and then decreases, and the temperature with maximum content of porosity is 1550 degrees C; however, in this casting temperature range, with the increase of casting temperature, the content of porosity at transition platform near the heater decreases a little bit. In a certain withdrawal velocity range (1 similar to 10 mm/min), with the increase of withdrawal velocity, porosity at transition platform near the central runner increases gradually; however the porosity at the opposite side part decreases. Based on these results, the relationship between casting temperature, withdrawal velocity and the content of porosity in transition platform dummy blade has been proposed. Besides, the influence of directional solidification process on the formation of porosity on the cross-section of the platform is mainly caused by the variation of temperature gradient of the solid-liquid interface.
关键词	nickel based superalloy casting temperature withdrawal velocity micro-porosity
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000377148800032
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：2[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/321006/122307
专题	中国科学院金属研究所
通讯作者	Li Jinguo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Northeastern Univ, Shenyang 110004, Peoples R China 3.Guizhou Liyang Aeropower Co Ltd, Anshun 561100, Peoples R China
推荐引用方式 GB/T 7714	Wang Yongfeng,Meng Xiangbin,Li Jinguo,et al. Influence of Directionally Solidified Process on Porosity in the Cross-Section Transitions of Ni-Based Superalloy DZ417G[J]. RARE METAL MATERIALS AND ENGINEERING,2016,45(5):1264-1270.
APA	Wang Yongfeng.,Meng Xiangbin.,Li Jinguo.,Liu Xinggang.,Wang Fan.,...&Sun Xiaofeng.(2016).Influence of Directionally Solidified Process on Porosity in the Cross-Section Transitions of Ni-Based Superalloy DZ417G.RARE METAL MATERIALS AND ENGINEERING,45(5),1264-1270.
MLA	Wang Yongfeng,et al."Influence of Directionally Solidified Process on Porosity in the Cross-Section Transitions of Ni-Based Superalloy DZ417G".RARE METAL MATERIALS AND ENGINEERING 45.5(2016):1264-1270.