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Oxidation behaviors of Fe-25Cr-20Ni-chi Nb austenitic weld metals at 1100 degrees C in ambient air: Role of elemental niobium
Zhang, Xu1,2,3; Li, Dianzhong1; Li, Yiyi1; Lu, Shanping1
Corresponding AuthorLu, Shanping(shplu@imr.ac.cn)
2019-10-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume159Pages:13
AbstractThe isothermal oxidation behaviors of the Fe-25Cr-20Ni-chi Nb (0-1.6 wt.%) weld metals have been investigated in air at 1100 degrees C. Results showed that niobium has a detrimental effect on the elevated temperature oxidation resistance of the chromia-forming weld metals. In the Nb content range studied, the Nb content of 1.6 wt.% showed the most deleterious effect on the chromia layer. Niobium promoted the chromium depletion underneath the oxide/matrix interface by impeding the chromium diffusion, which ruined the compactness of the chromia layer. The oxidation of niobium at the oxide layer/metal interface can further cause severe damage to the chromia layer, resulting in catastrophic oxide spallation.
KeywordAustenitic weld metal SEM XRD High temperature corrosion Oxidation
Funding OrganizationKey Research Program of Chinese Academy of Sciences
DOI10.1016/j.corsci.2019.108137
Indexed BySCI
Language英语
Funding ProjectKey Research Program of Chinese Academy of Sciences[ZDRW-CN-2017-1]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000488143500027
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/135627
Collection中国科学院金属研究所
Corresponding AuthorLu, Shanping
Affiliation1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110014, Liaoning, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xu,Li, Dianzhong,Li, Yiyi,et al. Oxidation behaviors of Fe-25Cr-20Ni-chi Nb austenitic weld metals at 1100 degrees C in ambient air: Role of elemental niobium[J]. CORROSION SCIENCE,2019,159:13.
APA Zhang, Xu,Li, Dianzhong,Li, Yiyi,&Lu, Shanping.(2019).Oxidation behaviors of Fe-25Cr-20Ni-chi Nb austenitic weld metals at 1100 degrees C in ambient air: Role of elemental niobium.CORROSION SCIENCE,159,13.
MLA Zhang, Xu,et al."Oxidation behaviors of Fe-25Cr-20Ni-chi Nb austenitic weld metals at 1100 degrees C in ambient air: Role of elemental niobium".CORROSION SCIENCE 159(2019):13.
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