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Low cycle fatigue and creep-fatigue interaction behavior of nickel-base superalloy GH4169 at elevated temperature of 650 degrees C
Chen, G.; Zhang, Y.; Xu, D. K.; Lin, Y. C.; Chen, X.; agang@tju.edu.cn
2016
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume655Pages:175-182
AbstractTotal strain-controlled low cycle fatigue (LCF) tests of a nickel based superalloy were performed at 650 degrees C. Various hold times were introduced at the peak tensile strain to investigate the high-temperature creep fatigue interaction (CFI) effects under the same temperature. A substantial decrease in fatigue life occurred as the total strain amplitude increased. Moreover, tensile strain holding further reduced fatigue life. The saturation phenomenon of holding effect was found when the holding period reached 120 s. Cyclic softening occurred during the LCF and CFI process and it was related to the total strain amplitude and the holding period. The relationship between life-time and total strain amplitude was obtained by combining Basquin equation and Coffin-Manson equation. The surface and fracture section of the fatigued specimens were observed via scanning electronic microscope (SEM) to determine the failure mechanism. (C) 2015 Elsevier B.V. All rights reserved.
description.department[chen, g. ; zhang, y. ; chen, x.] tianjin univ, sch chem engn & technol, tianjin 300072, peoples r china ; [xu, d. k.] chinese acad sci, inst met res, environm corros ctr, shenyang 110016, peoples r china ; [lin, y. c.] cent s univ, sch mech & elect engn, changsha 410083, hunan, peoples r china
KeywordLow Cycle Fatigue Creep-fatigue Interaction Nickel Based Superalloys Gh4169
Funding OrganizationNational Natural Science Foundation of China [51471116]; Program for New Century Excellent Talents in University of China [NCET-13-0400]; Tianjin University Independent Innovation Foundation [2013E3-0003]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74943
Collection中国科学院金属研究所
Corresponding Authoragang@tju.edu.cn
Recommended Citation
GB/T 7714
Chen, G.,Zhang, Y.,Xu, D. K.,et al. Low cycle fatigue and creep-fatigue interaction behavior of nickel-base superalloy GH4169 at elevated temperature of 650 degrees C[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,655:175-182.
APA Chen, G.,Zhang, Y.,Xu, D. K.,Lin, Y. C.,Chen, X.,&agang@tju.edu.cn.(2016).Low cycle fatigue and creep-fatigue interaction behavior of nickel-base superalloy GH4169 at elevated temperature of 650 degrees C.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,655,175-182.
MLA Chen, G.,et al."Low cycle fatigue and creep-fatigue interaction behavior of nickel-base superalloy GH4169 at elevated temperature of 650 degrees C".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 655(2016):175-182.
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