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Effect of Re content on precipitation behaviour of secondary phases in a single-crystal Ni-based superalloy during high-temperature thermal exposure
Liu Lirong1; Chen Maokai1; Tian Sugui1; Zhang Zhongyuan2; Jin Tao2
Corresponding AuthorLiu Lirong(lrliu@sut.edu.cn)
2018
Source PublicationMATERIALS AT HIGH TEMPERATURES
ISSN0960-3409
Volume35Issue:4Pages:355-362
AbstractThe precipitation of secondary phases in single-crystal Ni-based superalloys with different contents of Re are investigated using TEM and SEM.The results show that after full heat treatment, the size of secondary gamma' phase decreases gradually with increasing Re content. During long-term thermal exposure at 1093 degrees C, some needle-like and rod-like secondary phases precipitate from the gamma matrix. With increasing Re content and prolonging of the thermal exposure, the amounts of precipitated phases clearly increase. In the alloy with 2.5 wt-% Re, the needle-like phases are identified as M6C carbides. In the alloy with 3 wt-% Re, both M6C carbides and mu phase are found. In the alloy with 15 wt% Re, the needle-like and rod-like precipitated phases are identified as mu and P phases. Stacking fault was found in the P phase and that part was identified as mu phase by SAD; that is, there is intergrowth of P and mu phases.
KeywordSingle-crystal superalloy rhenium precipitated phase thermal exposure
DOI10.1080/09603409.2017.1367155
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000432282500006
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/128307
Collection中国科学院金属研究所
Corresponding AuthorLiu Lirong
Affiliation1.Shenyang Univ Technol, Mat Sci & Engn Sch, Shenyang, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Dept Superalloys, Shenyang, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Liu Lirong,Chen Maokai,Tian Sugui,et al. Effect of Re content on precipitation behaviour of secondary phases in a single-crystal Ni-based superalloy during high-temperature thermal exposure[J]. MATERIALS AT HIGH TEMPERATURES,2018,35(4):355-362.
APA Liu Lirong,Chen Maokai,Tian Sugui,Zhang Zhongyuan,&Jin Tao.(2018).Effect of Re content on precipitation behaviour of secondary phases in a single-crystal Ni-based superalloy during high-temperature thermal exposure.MATERIALS AT HIGH TEMPERATURES,35(4),355-362.
MLA Liu Lirong,et al."Effect of Re content on precipitation behaviour of secondary phases in a single-crystal Ni-based superalloy during high-temperature thermal exposure".MATERIALS AT HIGH TEMPERATURES 35.4(2018):355-362.
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