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Corrosion fatigue crack growth behavior of oil-grade nickel-base alloy 718. Part 2: Effect of aging treatment
Chen, Ting; Nutter, Jared; Sai, Jingsheng; Hawk, Jeffrey; Liu, Xingbo; xingbo.liu@mail.wvu.edu
2015
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume98Pages:280-290
AbstractThe influence of aging treatment on microstructure and corrosion fatigue crack growth (CFCG) behavior of oil-grade nickel-base alloy 718 is investigated. The average grain size of alloy 718 increases after aging treatment. Isolated platelet delta phases are precipitated at some of the grain boundaries in aged specimens. The one-step aged specimen shows a uniform distribution of fine spherical gamma' and elongated gamma '' precipitates. However, the two-step aged sample shows much finer gamma '' precipitates. Aging treatment leads to lower CFCG rates of alloy 718. Nevertheless, no visible difference of CFCG rates is observed between one-step aged and two-step aged specimens. (C) 2015 Elsevier Ltd. All rights reserved.
description.department[chen, ting ; nutter, jared ; hawk, jeffrey ; liu, xingbo] natl energy technol lab, albany, or 97321 usa ; [chen, ting ; nutter, jared ; liu, xingbo] w virginia univ, dept mech & aerosp engn, morgantown, wv 26506 usa ; [chen, ting] set labs inc, stafford, tx 77477 usa ; [sai, jingsheng] inst met sci & technol, shenyang 110015, peoples r china
KeywordSuperalloys Sem Tem Polarization Pitting Corrosion Corrosion Fatigue
Funding OrganizationNational Energy Technology Laboratory under the RES [DE-FE000400]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74691
Collection中国科学院金属研究所
Corresponding Authorxingbo.liu@mail.wvu.edu
Recommended Citation
GB/T 7714
Chen, Ting,Nutter, Jared,Sai, Jingsheng,et al. Corrosion fatigue crack growth behavior of oil-grade nickel-base alloy 718. Part 2: Effect of aging treatment[J]. CORROSION SCIENCE,2015,98:280-290.
APA Chen, Ting,Nutter, Jared,Sai, Jingsheng,Hawk, Jeffrey,Liu, Xingbo,&xingbo.liu@mail.wvu.edu.(2015).Corrosion fatigue crack growth behavior of oil-grade nickel-base alloy 718. Part 2: Effect of aging treatment.CORROSION SCIENCE,98,280-290.
MLA Chen, Ting,et al."Corrosion fatigue crack growth behavior of oil-grade nickel-base alloy 718. Part 2: Effect of aging treatment".CORROSION SCIENCE 98(2015):280-290.
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