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Effects of Ta on the solidification behavior and microstructure of a rhenium-containing hot corrosion resistant single crystal
Ma, Shi-hua1,2; Hao, Hong-quan3; Wang, Dong1; Lou, Lang-hong1; Zhang, Jian1
Corresponding AuthorWang, Dong(dwang@imr.ac.cn)
2019-07-01
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN1674-4799
Volume26Issue:7Pages:901-907
AbstractThe 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.
Keywordsuperalloys tantalum solidification behavior microstructure
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China
DOI10.1007/s12613-019-1817-6
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51631008] ; National Key Research and Development Program of China[2016YFB0701403]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS IDWOS:000474396200011
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/134456
Collection中国科学院金属研究所
Corresponding AuthorWang, Dong
Affiliation1.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
Recommended Citation
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.
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