MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 011 ORIENTED SINGLE CRYSTAL OF A Ni-BASED S'UPERALLOY DURING TENSILE CREEP

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	MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 011 ORIENTED SINGLE CRYSTAL OF A Ni-BASED S'UPERALLOY DURING TENSILE CREEP
	Zhang Shu 2; Tian Sugui 2; Yu Huichen 3; Su Yong 2; Yu Xingfu 2; Yu Lili 2
刊名	ACTA METALLURGICA SINICA
	2011
卷号	47 期号:1 页码:61-68
关键词	NICKEL-BASED SUPERALLOYS MORPHOLOGY GAMMA PHASE 011 oriented single crystal nickel-based superalloy microstructure evolution creep FEM analysis
ISSN号	0412-1961
其他题名	MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF011ORIENTED SINGLE CRYSTAL OF A Ni-BASED SUPERALLOY DURING TENSILE CREEP
英文摘要	By 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.
资助项目	[National Natural Science Foundation] ; [Specialized Research Fund for the Doctoral Program of Higher Education]
语种	英语
CSCD记录号	CSCD:4133230
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/142079]
专题	金属研究所_中国科学院金属研究所
作者单位	1.沈阳大学 2.中国科学院金属研究所 3.Beijing Institute Aeronaut Mat, Beijing 100095, Peoples R China
推荐引用方式 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.