Oxidation behaviors of Fe-25Cr-20Ni-chi Nb austenitic weld metals at 1100 degrees C in ambient air: Role of elemental niobium

doi:10.1016/j.corsci.2019.108137

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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 1,2,3; Li, Dianzhong 1; Li, Yiyi 1; Lu, Shanping 1
刊名	CORROSION SCIENCE
	2019-10-01
卷号	159 页码:13
关键词	Austenitic weld metal SEM XRD High temperature corrosion Oxidation
ISSN号	0010-938X
DOI	10.1016/j.corsci.2019.108137
通讯作者	Lu, Shanping(shplu@imr.ac.cn)
英文摘要	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.
资助项目	Key Research Program of Chinese Academy of Sciences[ZDRW-CN-2017-1]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000488143500027
资助机构	Key Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/135626]
专题	金属研究所_中国科学院金属研究所
通讯作者	Lu, Shanping
作者单位	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
推荐引用方式 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.