MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 111 ORIENTED SINGLE CRYSTAL OF A NICKEL-BASED SUPERALLOY DURING TENSILE CREEP

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	MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 111 ORIENTED SINGLE CRYSTAL OF A NICKEL-BASED SUPERALLOY DURING TENSILE CREEP
其他题名	MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF111ORIENTED SINGLE CRYSTAL OF A NICKELBASED SUPERALLOY DURING TENSILE CREEP
	Zhang Shu 1; Tian Sugui 1; Yu Huichen 3; Yu Lili 1; Yu Xingfu 1
	2012
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	48 期号:5 页码:561-568
摘要	The distribution of von Mises stress and strain energy density in regions near interfaces of gamma/gamma' phases was calculated by an elastic-plastic stress-strain finite element method (FEM), and the influences of applied stress on the von Mises stress distribution and coarsening regularity of gamma' phase in a 111 oriented single crystal nickel-based superalloy were also investigated. The results show that, after heat treated, the microstructure of the 111 oriented single crystal superalloy consists of a cubical gamma' phase embedded coherently in gamma matrix, and the cubical gamma' phase is regularly arranged along direction. When tensile stress is applied along 111 direction, compared to (010)(gamma') plane, larger expanding lattice strain occurs on (100)(gamma') and (001)(gamma') planes under the action of principal stress component, which may trap Al, Ti atoms with bigger radius to promote gamma' phase directionally growing along 010 and 100 orientations on (010) plane, this is thought to be the main reason of gamma' phase grown directionally into a mesh-like rafted structure along (010) plane.
关键词	HIGH-VOLUME FRACTION UNIAXIAL STRESS GAMMA PHASE MORPHOLOGY 111 orientation single crystal nickel-based superalloy microstructure evolution creep FEM analysis
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:4535434
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/148860
专题	中国科学院金属研究所
作者单位	1.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
推荐引用方式 GB/T 7714	Zhang Shu,Tian Sugui,Yu Huichen,et al. MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 111 ORIENTED SINGLE CRYSTAL OF A NICKEL-BASED SUPERALLOY DURING TENSILE CREEP[J]. ACTA METALLURGICA SINICA,2012,48(5):561-568.
APA	Zhang Shu,Tian Sugui,Yu Huichen,Yu Lili,&Yu Xingfu.(2012).MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 111 ORIENTED SINGLE CRYSTAL OF A NICKEL-BASED SUPERALLOY DURING TENSILE CREEP.ACTA METALLURGICA SINICA,48(5),561-568.
MLA	Zhang Shu,et al."MICROSTRUCTURE EVOLUTION AND FEM ANALYSIS OF 111 ORIENTED SINGLE CRYSTAL OF A NICKEL-BASED SUPERALLOY DURING TENSILE CREEP".ACTA METALLURGICA SINICA 48.5(2012):561-568.