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MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 011 ORIENTED SINGLE CRYSTAL OF A Ni-BASED S'UPERALLOY DURING TENSILE CREEP
Alternative TitleMICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF011ORIENTED SINGLE CRYSTAL OF A Ni-BASED SUPERALLOY DURING TENSILE CREEP
Zhang Shu1; Tian Sugui1; Yu Huichen3; Su Yong1; Yu Xingfu1; Yu Lili1
2011
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume47Issue:1Pages:61-68
AbstractBy means of the elastic stress-strain finite element method (FEM), the distribution features of the von Mises stress, strain energy density and the influences of the applied stress on the von Mises stress at gamma/gamma' phases interface and gamma' phase directionally coarsening regularity in a 011 oriented single crystal nickel-based superalloy were investigated. Results show that after heat treatment, the microstructure of the superalloy consists of the cubic gamma' phases embedded coherently in the gamma matrix, and gamma' phases arranged regularly along the < 100 > direction. Compared to the matrix channel near (010)(gamma)' plane, the bigger von Mises stress are produced within the matrix channel near (001)(gamma)' plane when the tensile stress is applied along the 011 direction. Compared to (010)(gamma)' plane, the larger expanding lattice strain occurs on the (001)(gamma)' plane along the 010(gamma)' direction under the action of the principal stress component, resulting in the Al, Ti atoms with bigger radius to be trapped by the larger strain zone, which is the main reason of promoting the gamma' phase grown directionally into the strip-like rafted structure.
KeywordNICKEL-BASED SUPERALLOYS MORPHOLOGY GAMMA PHASE 011 oriented single crystal nickel-based superalloy microstructure evolution creep FEM analysis
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation] ; [Specialized Research Fund for the Doctoral Program of Higher Education]
CSCD IDCSCD:4133230
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/142078
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.沈阳大学
3.Beijing Institute Aeronaut Mat, Beijing 100095, Peoples R China
Recommended Citation
GB/T 7714
Zhang Shu,Tian Sugui,Yu Huichen,et al. MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 011 ORIENTED SINGLE CRYSTAL OF A Ni-BASED S'UPERALLOY DURING TENSILE CREEP[J]. ACTA METALLURGICA SINICA,2011,47(1):61-68.
APA Zhang Shu,Tian Sugui,Yu Huichen,Su Yong,Yu Xingfu,&Yu Lili.(2011).MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 011 ORIENTED SINGLE CRYSTAL OF A Ni-BASED S'UPERALLOY DURING TENSILE CREEP.ACTA METALLURGICA SINICA,47(1),61-68.
MLA Zhang Shu,et al."MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 011 ORIENTED SINGLE CRYSTAL OF A Ni-BASED S'UPERALLOY DURING TENSILE CREEP".ACTA METALLURGICA SINICA 47.1(2011):61-68.
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