Evolution of Sliver Defect in Ni-Based Single Crystal Superalloy

doi:10.1007/s11661-020-06003-9

CORC > 金属研究所 > 中国科学院金属研究所

	Evolution of Sliver Defect in Ni-Based Single Crystal Superalloy
	Huang, Yaqi 1,2; Shen, Jian 1; Wang, Dong 1; Xie, Guang 1; Lu, Yuzhang 1; Lou, Langhong 1; Zhang, Jian 1
刊名	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
	2020-09-25
页码	9
ISSN号	1073-5623
DOI	10.1007/s11661-020-06003-9
通讯作者	Zhang, Jian(jianzhang@imr.ac.cn)
英文摘要	The evolution of sliver defect in a Ni-based single crystal superalloy was explored by casting samples with a similar geometry of the airfoil section of a turbine blade using optical microscope and electron backscattered diffraction. It was found that the sliver generally initiated from 1 to 2 tertiary dendrites at the diverging boundary between the mold wall and matrix. All slivers were tilt from matrix along the [001] and some of them rotated relative to the matrix on the plane perpendicular to the solidification direction. During solidification sliver in most castings grew with a fixed orientation. All slivers can extend along the solidification direction to the top of the casting. Most of the sliver defects showed constant width and did not extend on the casting surface. However, the sliver with large misorientation to matrix on the cross section perpendicular to the solidification direction extended on the casting surface and into the casting quickly.
资助项目	National Key Research and Development Program of China[2016YFB0701403] ; National Natural Science Foundation of China[51631008] ; National Natural Science Foundation of China[91860201] ; National Natural Science Foundation of China[51771204] ; National Natural Science Foundation of China[U1732131] ; National Science and Technology Major Project[2017-VII-0008-0101] ; National Science and Technology Major Project[2017-VI-0003-0073] ; Key Deployment Projects of the Chinese Academy of Sciences[ZDRW-CN-2019-01]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000572718300001
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Science and Technology Major Project ; Key Deployment Projects of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140604]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Jian
作者单位	1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Huang, Yaqi,Shen, Jian,Wang, Dong,et al. Evolution of Sliver Defect in Ni-Based Single Crystal Superalloy[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2020:9.
APA	Huang, Yaqi.,Shen, Jian.,Wang, Dong.,Xie, Guang.,Lu, Yuzhang.,...&Zhang, Jian.(2020).Evolution of Sliver Defect in Ni-Based Single Crystal Superalloy.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,9.
MLA	Huang, Yaqi,et al."Evolution of Sliver Defect in Ni-Based Single Crystal Superalloy".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2020):9.