Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting

doi:10.1007/s40195-018-0716-6

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	Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting
	Huang, M 1; Zhang, G ; Wang, D ; Dong, JS ; Wang, L ; Lou, LH
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2018-08-01
卷号	31 期号:8 页码:887-896
关键词	Large-scale single crystal Platform Primary dendrite arm spacing Eutectic volume fraction Stress-rupture property
ISSN号	1006-7191
DOI	10.1007/s40195-018-0716-6
英文摘要	The microstructure and stress-rupture property of the large-scale complex single crystal (SX) casting DD10 were investigated in high-rate solidification process. It is found that the primary dendrite arm spacing (PDAS) does not increase monotonically with the height increase. When across the platform, the temperature gradient increases due to the effect of platform, and the corresponding PDAS decreases. The distribution of eutectic volume fraction in large-scale complex SX casting is affected by PDAS, solid back diffusion, and the development of high order dendrites. The eutectic volume fraction contained in the sample taken below the platform decreases with the height increase. While the eutectic volume fraction contained in the sample taken upper the platform increases gradually with the height increase. After heat treatment, most of the 7/7' eutectics are eliminated and the components are distributed uniformly. The similar stress rupture properties of the samples at different heights in the same direction are obtained.
学科主题	Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000436510100012
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/80075]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Huang, M,Zhang, G,Wang, D,et al. Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2018,31(8):887-896.
APA	Huang, M,Zhang, G,Wang, D,Dong, JS,Wang, L,&Lou, LH.(2018).Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting.ACTA METALLURGICA SINICA-ENGLISH LETTERS,31(8),887-896.
MLA	Huang, M,et al."Microstructure and Stress-Rupture Property of Large-Scale Complex Nickel-Based Single Crystal Casting".ACTA METALLURGICA SINICA-ENGLISH LETTERS 31.8(2018):887-896.