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Anisotropic Stress Rupture Behavior of a Nickel-Base Single Crystal Superalloy
Han Guoming; Yu Jinjiang; Sun Xiaofeng; Guan Hengrong; Hu Zhuangqi
Corresponding AuthorHan Guoming(gmhan@imr.ac.cn)
2011-04-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume40Issue:4Pages:673-676
AbstractThe stress rupture test was conducted to a nickel-base single crystal superalloy DD499 along [001], [011] and [111] orientations. The results indicate that anisotropic behaviors of singe crystal superalloy are significantly affected by temperature and stress level. At 760 degrees C, 790 MPa, the stress rupture property of [001] orientation is outstandingly superior to that of [011] and [111] orientations; while at 1040 degrees C, 165 MPa, the order of stress rupture is [111]>[001]>[011], but the anisotropic properties of different orientations are weakened. Fracture surface and deformation microstructure were examined by SEM. The results show that at 760 degrees C, 790 MPa, the fracture mode of [001] orientation is the combination of cleavage and quasi-cleavage; while the fracture mode of [011] orientation is pure shear due to single slip system and [111] orientation is pure shear caused by multiple slip systems. At 1040 degrees C, 165 MPa, the fracture mode of the three orientations all turns to be microvoid coalescence fracture.
KeywordNi-base single crystal superalloy anisotropic properties fracture characteristics
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000290781700023
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/106061
Collection中国科学院金属研究所
Corresponding AuthorHan Guoming
AffiliationChinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Han Guoming,Yu Jinjiang,Sun Xiaofeng,et al. Anisotropic Stress Rupture Behavior of a Nickel-Base Single Crystal Superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,2011,40(4):673-676.
APA Han Guoming,Yu Jinjiang,Sun Xiaofeng,Guan Hengrong,&Hu Zhuangqi.(2011).Anisotropic Stress Rupture Behavior of a Nickel-Base Single Crystal Superalloy.RARE METAL MATERIALS AND ENGINEERING,40(4),673-676.
MLA Han Guoming,et al."Anisotropic Stress Rupture Behavior of a Nickel-Base Single Crystal Superalloy".RARE METAL MATERIALS AND ENGINEERING 40.4(2011):673-676.
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