| 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 Author | Lu, Shanping(shplu@imr.ac.cn) |
| 2019-10-01 | |
| Source Publication | CORROSION SCIENCE
 |
| ISSN | 0010-938X |
| Volume | 159Pages:13 |
| Abstract | The 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. |
| Keyword | Austenitic weld metal SEM XRD High temperature corrosion Oxidation |
| Funding Organization | Key Research Program of Chinese Academy of Sciences |
| DOI | 10.1016/j.corsci.2019.108137 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Key Research Program of Chinese Academy of Sciences[ZDRW-CN-2017-1] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000488143500027 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/135629 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Lu, Shanping |
| Affiliation | 1.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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