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

IMR OpenIR

	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; Zhang, Qing 3; Chen, Yanhui 3; Mao, Shengcheng 3
通讯作者	Zhang, Jianxin(jianxin@sdu.edu.cn)
	2018-10-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	766 页码:775-783
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.
关键词	Ni-base single crystal superalloys mu phase Planar defects HAADF-STEM Atomic arrangement characteristics
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jallcom.2018.07.035
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000444617200092
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：22[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/321006/129459
专题	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.