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Effects of rhenium on the microstructure and creep properties of novel nickle-based single crystal superalloys
Tan, Z. H.1,2; Wang, X. G.1; Ye, L. H.1; Hou, G. C.1; Li, R.1; Yang, Y. H.1; Liu, J. L.1; Liu, J. D.1; Yang, L.2; Wang, B.3; Dong, P.3; Li, J. G.1; Zhou, Y. Z.1; Sun, X. F.1
Corresponding AuthorWang, X. G.(xgwang11b@imr.ac.cn) ; Yang, L.(yanglin318@126.com)
2019-07-22
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume761Pages:8
AbstractTwo novel single crystal superalloys were designed to obtain affordable third generation single crystal superalloys. Creep tests and long-term thermal exposure were utilized to evaluate the microstructure and creep properties of the experimental alloys. Moreover, the role of Re in the microstructure and creep performance was investigated. Interestingly, the results showed that the two experimental alloys with different addition of Re demonstrated similar creep properties under the condition of 1120 degrees C/137 MPa. The alloy with 1 wt% Re owned much better microstructural stability for the rare presence of the TCP phase. However, With higher volume fraction of the gamma' phase and denser gamma/gamma' interfacial dislocation networks, the alloy with 2 wt% Re addition is believed to be provided with better precipitation strengthening and interfacial strengthening effects, which strongly guarantee the mechanical properties and hinder superdislocations shearing into the gamma' phase. Affected by the synergistic effects of their strengthening and weakening factors, the two experimental alloys exhibited few difference in creep rupture life under elevated-temperature and low stress condition. Important guidance for the further designs of single crystal alloys could be summarized from the present study.
KeywordSingle crystal superalloys Rhenium Microstructure Creep property Synergistic effects
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; State Key Lab of Advanced Metals and Materials Open Fund ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
DOI10.1016/j.msea.2019.138042
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFA0700704] ; National Natural Science Foundation of China[51601192] ; National Natural Science Foundation of China[51671188] ; State Key Lab of Advanced Metals and Materials Open Fund[2018-Z07] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000477784900035
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/134607
Collection中国科学院金属研究所
Corresponding AuthorWang, X. G.; Yang, L.
Affiliation1.Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
2.Shenyang Univ Technol, Sch Mat Sci & Engn, 111 Shenliao Rd, Shenyang 110870, Liaoning, Peoples R China
3.Aero Engine Corp China, Inst Sichuan Gas Turbine Res, Chengdu 610500, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Tan, Z. H.,Wang, X. G.,Ye, L. H.,et al. Effects of rhenium on the microstructure and creep properties of novel nickle-based single crystal superalloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,761:8.
APA Tan, Z. H..,Wang, X. G..,Ye, L. H..,Hou, G. C..,Li, R..,...&Sun, X. F..(2019).Effects of rhenium on the microstructure and creep properties of novel nickle-based single crystal superalloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,761,8.
MLA Tan, Z. H.,et al."Effects of rhenium on the microstructure and creep properties of novel nickle-based single crystal superalloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 761(2019):8.
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