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Reaction of Ni-Based Superalloy with Liquid Sn During Liquid-Metal-Cooled Directional Solidification
Shen, J.; Xu, Z. G.; Lu, Y. Z.; Zheng, W.; Lou, L. H.; Zhang, J.
Corresponding AuthorZhang, J.(jianzhang@imr.ac.cn)
2018-09-01
Source PublicationMETALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN1073-5623
Volume49AIssue:9Pages:4003-4011
AbstractThe liquid metal cooling (LMC) process has attracted increasing attention in the investment casting industry in recent years. Liquid Sn is generally used as the cooling medium in state-of-the-art LMC processes even though Sn is known to be a detrimental element in Ni-based superalloys. Therefore, Sn contamination in superalloys has become one of the top concerns for the LMC process. In this work, the reaction between liquid Sn and a Ni-based superalloy was investigated. The detectable reaction between superalloy and liquid Sn began at approximately 500 degrees C, and the reaction products became complex with increasing temperature. At high temperatures beyond 750 degrees C, a very short contact period of less than 1 minute led to a severe surface reaction. The results were compared to the surface reaction zone of the large blade. The critical time when the superalloy casting contacted liquid Sn is obtained based on experimental observations and numerical simulations. The surface reaction will occur if the ceramic mold cracked at this point or previously. The surface contamination during LMC solidification is associated with the volume of the casting. The present results indicate that surface reaction would be avoided if the volume of the large blade is reduced to - 30 pct of the original size.
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China
DOI10.1007/s11661-018-4758-1
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFB0702904] ; National Key Research and Development Program of China[2016YFB0701403] ; National Natural Science Foundation of China[51631008]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000440714700020
PublisherSPRINGER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/128977
Collection中国科学院金属研究所
Corresponding AuthorZhang, J.
AffiliationChinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Shen, J.,Xu, Z. G.,Lu, Y. Z.,et al. Reaction of Ni-Based Superalloy with Liquid Sn During Liquid-Metal-Cooled Directional Solidification[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2018,49A(9):4003-4011.
APA Shen, J.,Xu, Z. G.,Lu, Y. Z.,Zheng, W.,Lou, L. H.,&Zhang, J..(2018).Reaction of Ni-Based Superalloy with Liquid Sn During Liquid-Metal-Cooled Directional Solidification.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,49A(9),4003-4011.
MLA Shen, J.,et al."Reaction of Ni-Based Superalloy with Liquid Sn During Liquid-Metal-Cooled Directional Solidification".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 49A.9(2018):4003-4011.
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