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Tensile Deformation and Fracture Behavior of Nickel-Based Superalloy DZ951G
Guo, Chenhao1,2; Yu, Jinjiang1; Liu, Jinlai1; Sun, Xiaofeng1; Zhou, Yizhou1
Corresponding AuthorYu, Jinjiang(jjyu@imr.ac.cn)
2021-05-01
Source PublicationMATERIALS
Volume14Issue:9Pages:11
AbstractDZ951G is a novel developed nickel-based directional solidified superalloy with an incipient high melting point and low density. Compared with DZ417G superalloy, DZ951G superalloy has a higher ultimate tensile strength. At intermediate temperatures, the plasticity and strength were both markedly improved, and an obviously anomalous yield behavior could be observed where the yield strength reached its maximum at 760 degrees C. Below 600 degrees C, two competitive modes of dislocations shearing gamma ' particles existed, in which one was the formation of stacking faults and another was a/2 dislocations shearing. At intermediate temperatures, a transitional phase between shearing gamma ' particles and bypassing appeared, and the fracture translated from brittle fracture into ductile fracture. Exceeding 900 degrees C, bypassing of dislocations was operated under thermal activation. Moreover, short continuous stacking faults still existed at 760 degrees C. Finally, the various dislocation configurations were rationally illuminated and explained with the intrinsic connection of mechanical properties.
KeywordDZ951G superalloy tensile properties stacking faults microstructures deformation mechanisms
Funding OrganizationNational Natural Science Foundation of China (NSFC)
DOI10.3390/ma14092250
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51771191] ; National Natural Science Foundation of China (NSFC)[51971214]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000650555100001
PublisherMDPI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161526
Collection中国科学院金属研究所
Corresponding AuthorYu, Jinjiang
Affiliation1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Guo, Chenhao,Yu, Jinjiang,Liu, Jinlai,et al. Tensile Deformation and Fracture Behavior of Nickel-Based Superalloy DZ951G[J]. MATERIALS,2021,14(9):11.
APA Guo, Chenhao,Yu, Jinjiang,Liu, Jinlai,Sun, Xiaofeng,&Zhou, Yizhou.(2021).Tensile Deformation and Fracture Behavior of Nickel-Based Superalloy DZ951G.MATERIALS,14(9),11.
MLA Guo, Chenhao,et al."Tensile Deformation and Fracture Behavior of Nickel-Based Superalloy DZ951G".MATERIALS 14.9(2021):11.
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