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Atomic arrangement and formation of planar defects in the mu phase of Ni-base single crystal superalloys
Ma, Shiyu1,2; Li, Xueqiao3; Zhang, Jianxin1; Liu, Jide4; Li, Pan1; Zhang, Youjian1; Jin, Huixin1; Zhang, Wenyang1; Zhou, Yizhou4; Sun, Xiaofeng4; Zhang, Qing3; Chen, Yanhui3; Mao, Shengcheng3
Corresponding AuthorZhang, Jianxin(jianxin@sdu.edu.cn)
2018-10-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume766Pages:775-783
AbstractThe 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.
KeywordNi-base single crystal superalloys mu phase Planar defects HAADF-STEM Atomic arrangement characteristics
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.jallcom.2018.07.035
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51771102] ; National Natural Science Foundation of China[51271097] ; National Natural Science Foundation of China[51471098]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000444617200092
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129459
Collection中国科学院金属研究所
Corresponding AuthorZhang, Jianxin
Affiliation1.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
Recommended Citation
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.
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