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Influence of Directionally Solidified Process on Porosity in the Cross-Section Transitions of Ni-Based Superalloy DZ417G
Wang Yongfeng1,2; Meng Xiangbin1; Li Jinguo1; Liu Xinggang2; Wang Fan3; Jin Tao1; Sun Xiaofeng1
Corresponding AuthorLi Jinguo(jgli@imr.ac.cn)
2016-05-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume45Issue:5Pages:1264-1270
AbstractThe 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.
Keywordnickel based superalloy casting temperature withdrawal velocity micro-porosity
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000377148800032
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/122307
Collection中国科学院金属研究所
Corresponding AuthorLi Jinguo
Affiliation1.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
Recommended Citation
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.
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