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Element accumulation beneath the scale/alloy interface of a CoNiCrAlReY alloy
Alternative TitleCorrosion Sci.
Salam, S.1; Hou, P. Y.2; Zhang, Y-D.1; Lan, H.3; Wang, H-F.1; Zhang, C.1; Yang, Z-G1
2014-12-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume89Issue:DECPages:318-325
AbstractIn the present study, two types of subscale Cr and Re accumulation found at scale/alloy interface of two batches of Co32Ni21Cr10Al3.5ReY alloys are described. During oxidation, one alloy developed a supersaturated Cr-Re rich layer and another formed Cr-Re precipitates beneath the oxide in the subscale region. Diffusional and thermodynamic modelling showed the accumulation is a result of decreasing Cr and Re chemical potentials with Al depletion. The observed difference in accumulation forms is caused by the different phases in two alloys, with the former being gamma, beta, alpha, sigma and gamma, beta and the latter having only gamma, beta and sigma. (C) 2014 Elsevier Ltd. All rights reserved.; In the present study, two types of subscale Cr and Re accumulation found at scale/alloy interface of two batches of Co32Ni21Cr10Al3.5ReY alloys are described. During oxidation, one alloy developed a supersaturated Cr-Re rich layer and another formed Cr-Re precipitates beneath the oxide in the subscale region. Diffusional and thermodynamic modelling showed the accumulation is a result of decreasing Cr and Re chemical potentials with Al depletion. The observed difference in accumulation forms is caused by the different phases in two alloys, with the former being gamma, beta, alpha, sigma and gamma, beta and the latter having only gamma, beta and sigma. (C) 2014 Elsevier Ltd. All rights reserved.
KeywordAlloy Modelling Studies Oxidation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.corsci.2014.09.015
URL查看原文
Indexed BySCI
Language英语
WOS KeywordFERRITIC STAINLESS-STEELS ; ALUMINA SCALE GROWTH ; SIGMA-PHASE ; OXIDATION BEHAVIOR ; CR ALLOYS ; CHROMIUM ; OXIDE ; DEPLETION ; COATINGS
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000345059400035
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11820
Collection研究所(批量导入)
Affiliation1.Tsinghua Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Mat, Beijing 100084, Peoples R China
2.Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Salam, S.,Hou, P. Y.,Zhang, Y-D.,et al. Element accumulation beneath the scale/alloy interface of a CoNiCrAlReY alloy[J]. CORROSION SCIENCE,2014,89(DEC):318-325.
APA Salam, S..,Hou, P. Y..,Zhang, Y-D..,Lan, H..,Wang, H-F..,...&Yang, Z-G.(2014).Element accumulation beneath the scale/alloy interface of a CoNiCrAlReY alloy.CORROSION SCIENCE,89(DEC),318-325.
MLA Salam, S.,et al."Element accumulation beneath the scale/alloy interface of a CoNiCrAlReY alloy".CORROSION SCIENCE 89.DEC(2014):318-325.
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