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Low ductility at intermediate temperature of Ni-base superalloy M963
He, LZ; Zheng, Q; Sun, XF; Hou, GC; Guan, HR; Hu, ZQ
Corresponding AuthorHe, LZ(cybhlz@163.net)
2004-08-25
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume380Issue:1-2Pages:340-348
AbstractTensile behavior of a cast Ni-base superalloy M963 under solution treatment and age treatment was studied in the temperature range from 20 to 1100degreesC. Extensive TEM investigations were performed after tensile test to fracture. Furthermore, the fracture surfaces were studied in the SEM. The yield and tensile strengths under the two conditions initially increase with temperature and reach a peak at around 800degreesC. Beyond this temperature, a sharp decrease of both yield and tensile strengths was observed. A ductility minimum was observed at 800degreesC under solution treatment and disappeared under age treatment. With the increment of temperature, the following sequence of deformed substructure features was observed: dislocation pairs --> connected slip bands within matrix channel under solution treatment and homogeneous interface dislocations under age treatment --> homogeneous dislocation network within matrix channel. The fracture surface observation indicated that localized slip which leading to glide plane decohesion caused the poor ductility of M963 alloy. (C) 2004 Published by Elsevier B.V.
KeywordM963 alloy heat treatment strength ductility microstructure
DOI10.1016/j.msea.2004.03.057
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000223330200038
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:48[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/119404
Collection中国科学院金属研究所
Corresponding AuthorHe, LZ
AffiliationChinese Acad Sci, Inst Mat Res, Dept Superalloys, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
He, LZ,Zheng, Q,Sun, XF,et al. Low ductility at intermediate temperature of Ni-base superalloy M963[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2004,380(1-2):340-348.
APA He, LZ,Zheng, Q,Sun, XF,Hou, GC,Guan, HR,&Hu, ZQ.(2004).Low ductility at intermediate temperature of Ni-base superalloy M963.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,380(1-2),340-348.
MLA He, LZ,et al."Low ductility at intermediate temperature of Ni-base superalloy M963".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 380.1-2(2004):340-348.
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