Effects of rhenium on the microstructure and creep properties of novel nickle-based single crystal superalloys

doi:10.1016/j.msea.2019.138042

CORC > 金属研究所 > 中国科学院金属研究所

	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
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2019-07-22
卷号	761 页码:8
关键词	Single crystal superalloys Rhenium Microstructure Creep property Synergistic effects
ISSN号	0921-5093
DOI	10.1016/j.msea.2019.138042
通讯作者	Wang, X. G.(xgwang11b@imr.ac.cn) ; Yang, L.(yanglin318@126.com)
英文摘要	Two 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.
资助项目	National 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研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000477784900035
资助机构	National 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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134606]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, X. G.; Yang, L.
作者单位	1.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
推荐引用方式 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.