Evolution of micro-pores in a single crystal nickel-based superalloy during 980 degrees C creep

doi:10.1007/s40195-021-01371-6

IMR OpenIR

	Evolution of micro-pores in a single crystal nickel-based superalloy during 980 degrees C creep
	He, Yufeng 1,2; Wang, Shaogang 3; Shen, Jian 1; Wang, Dong 1; Lu, Yuzhang 1; Lou, Langhong 1; Zhang, Jian 1
通讯作者	Shen, Jian(shenjian@imr.ac.cn) ; Zhang, Jian(jianzhang@imr.ac.cn)
	2022-02-25
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	10
摘要	The evolution of micro-pores in a single crystal nickel-based superalloy during creep at 980 degrees C/220 MPa was investigated by X-ray computed tomography. Time-dependent ex-situ 3D information including the number, volume fraction, distribution and morphology of micro-pores was analyzed. The results reveal that the significant formation and growth of micro-pores occur at the end of secondary/beginning of tertiary creep stage. The irregular large pores as well as high density pores located at strain concentration region are the major detrimental factors facilitating the creep damage. Creep failure is resulted from the connection of surface cracks induced by oxidation, and the internal cracks generated from growth and merging of micro-pores.
关键词	Single crystal superalloy Creep damage Micro-pore evolution X-ray tomography
资助者	National Natural Science Foundation of China ; National Science and Technology Major Project ; Key Deployment Projects of the Chinese Academy of Sciences
DOI	10.1007/s40195-021-01371-6
收录类别	SCI
语种	英语
资助项目	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[51911530154] ; National Natural Science Foundation of China[U1732131] ; National Science and Technology Major Project[2017-VII-0008-0101] ; National Science and Technology Major Project[2017-VI0003-0073] ; National Science and Technology Major Project[J2019-VI-0010] ; Key Deployment Projects of the Chinese Academy of Sciences[ZDRW-CN-2019-01]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000761853900001
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173385
专题	中国科学院金属研究所
通讯作者	Shen, Jian; 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, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	He, Yufeng,Wang, Shaogang,Shen, Jian,et al. Evolution of micro-pores in a single crystal nickel-based superalloy during 980 degrees C creep[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2022:10.
APA	He, Yufeng.,Wang, Shaogang.,Shen, Jian.,Wang, Dong.,Lu, Yuzhang.,...&Zhang, Jian.(2022).Evolution of micro-pores in a single crystal nickel-based superalloy during 980 degrees C creep.ACTA METALLURGICA SINICA-ENGLISH LETTERS,10.
MLA	He, Yufeng,et al."Evolution of micro-pores in a single crystal nickel-based superalloy during 980 degrees C creep".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2022):10.