Atomic arrangement and formation of planar defects in the mu phase of Ni-base single crystal superalloys

doi:10.1016/j.jallcom.2018.07.035

CORC > 金属研究所 > 中国科学院金属研究所

	Atomic arrangement and formation of planar defects in the mu phase of Ni-base single crystal superalloys
	Ma, Shiyu 1,2; Li, Xueqiao 3; Zhang, Jianxin 1; Liu, Jide 4; Li, Pan 1; Zhang, Youjian 1; Jin, Huixin 1; Zhang, Wenyang 1; Zhou, Yizhou 4; Sun, Xiaofeng 4
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2018-10-25
卷号	766 页码:775-783
关键词	Ni-base single crystal superalloys mu phase Planar defects HAADF-STEM Atomic arrangement characteristics
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2018.07.035
通讯作者	Zhang, Jianxin(jianxin@sdu.edu.cn)
英文摘要	The internal characteristics of the mu phase in Ni-base single crystal superalloys aged at 1100 degrees C for 1000 h were investigated via spherical aberration-corrected transmission electron microscopy. There were a large number of planar defects on the (001) plane at the growth tip of the m phase. HAADF-STEM results show that these planar defects were mainly of two types. 1) A twin structure with a mirror plane of the middle atomic planes of the Zr4Al3 sheet, which was generated by shearing of atoms in the MgCu2 sheet along the [1-10] direction. 2) A mirror-symmetrical stacking fault of two Zr4Al3 sheets, which was formed by the pulling out of a single MgCu2 sheet. The planar defects were mainly caused by coordination of the distortions of the m phase and the matrix. Segregation of Mo, Cr, and Re elements occurred near stacking faults, rather than twin structures. (C) 2018 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[51771102] ; National Natural Science Foundation of China[51271097] ; National Natural Science Foundation of China[51471098]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000444617200092
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/129458]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Jianxin
作者单位	1.Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Shandong, Peoples R China 2.Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China 3.Beijing Univ Technol, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100024, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Ma, Shiyu,Li, Xueqiao,Zhang, Jianxin,et al. Atomic arrangement and formation of planar defects in the mu phase of Ni-base single crystal superalloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,766:775-783.
APA	Ma, Shiyu.,Li, Xueqiao.,Zhang, Jianxin.,Liu, Jide.,Li, Pan.,...&Mao, Shengcheng.(2018).Atomic arrangement and formation of planar defects in the mu phase of Ni-base single crystal superalloys.JOURNAL OF ALLOYS AND COMPOUNDS,766,775-783.
MLA	Ma, Shiyu,et al."Atomic arrangement and formation of planar defects in the mu phase of Ni-base single crystal superalloys".JOURNAL OF ALLOYS AND COMPOUNDS 766(2018):775-783.