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Effect of heat treatment on the microstructure and tensile properties of the cast nickel-base superalloy M963
Yin, FS; Sun, XF; Hou, GC; Qi, Z; Guan, HR; Hu, ZQ
Corresponding AuthorYin, FS()
2004
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume33Issue:1Pages:23-26
AbstractThe effects of heat treatment on the microstructural and tensile properties of conventionally cast M963 superalloy both at ambient temperature and 900 degreesC have been investigated. The results show that the solution treatment at 1 210 degreesC for 4h followed by air cooling causes an increase in the tensile strength but a decrease in ductility especially at high temperatures; After the solution treatment, aging at 850 degreesC for 16h followed by furnace cooling further increases the tensile strength and the ductility at high temperature but decreases the ambient temperature ductility. Scanning electron microscope (SEM) observation reveals that the primary MC carbide becomes different and secondary M6C carbide precipitates at grain boundaries and interdendritic regions during the solution treatment at 1 2 10 degreesC for 4h. Fine gamma phase particles precipitate from the gamma solid solution during air-cooling following the solution treatment. The aging treatment at 850 degreesC for 16h makes a fine gamma phase precipitate and grow. Analysis of the fracture surface indicates that the fracture mechanism varies with heat treatment condition. The effects of heat treatment on the tensile properties at both ambient and high temperatures is discussed in terms of interaction between dislocations and particles.
Keywordcast nickel-base superalloy heat treatment microstructure ductility
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000188932200006
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80862
Collection中国科学院金属研究所
Corresponding AuthorYin, FS
Affiliation1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China
2.Shandong Univ Technol, Zibo 255012, Peoples R China
Recommended Citation
GB/T 7714
Yin, FS,Sun, XF,Hou, GC,et al. Effect of heat treatment on the microstructure and tensile properties of the cast nickel-base superalloy M963[J]. RARE METAL MATERIALS AND ENGINEERING,2004,33(1):23-26.
APA Yin, FS,Sun, XF,Hou, GC,Qi, Z,Guan, HR,&Hu, ZQ.(2004).Effect of heat treatment on the microstructure and tensile properties of the cast nickel-base superalloy M963.RARE METAL MATERIALS AND ENGINEERING,33(1),23-26.
MLA Yin, FS,et al."Effect of heat treatment on the microstructure and tensile properties of the cast nickel-base superalloy M963".RARE METAL MATERIALS AND ENGINEERING 33.1(2004):23-26.
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