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, SY ; Li, XQ ; Zhang, JX ; Liu, JD ; Li, P ; Zhang, YJ ; Jin, HX ; Zhang, WY ; Zhou, YZ ; Sun, XF
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
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.
学科主题	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000444617200092
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79889]
专题	金属研究所_中国科学院金属研究所
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, SY,Li, XQ,Zhang, JX,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, SY.,Li, XQ.,Zhang, JX.,Liu, JD.,Li, P.,...&Mao, SC.(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, SY,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.