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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, Xu; Li, Dianzhong; Li, Yiyi; Lu, Shanping
2019-10-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume159
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
Indexed BySCI
Language英语
WOS IDWOS:000488143500027
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80727
Collection中国科学院金属研究所
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.
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.
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).
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