Development and oxidation of a RexOy- modified chromizing coating

IMR OpenIR

	Development and oxidation of a RexOy- modified chromizing coating
	Zhu, L; Peng, X; Wang, F; Wu, W
通讯作者	Peng, X()
	2004
发表期刊	HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS
ISSN	0255-5476
卷号	461-464 页码:255-263
摘要	Novel reactive element oxide RexOy (Re=Ce,Y)-modifed chromizing coatings have been developed by the first step of co-electrodeposition of Ni with CeO2 or Y2O3 Particles on a mild carbon steel and the subsequent step of diffusional chromizing on electrodeposited Ni-CeO2/or Y2O3 composite films using a halide-activated pack-cementation method at 1120degreesC for 4 h. By comparison, the coating processing was also performed on the carbon steel and on an electrodeposited Ni film without Re-x(y)O addition. The thickness of the chromizing coating obtained was approximately 75mum on the carbon steel and in a range of 55similar to60 mum on the other electrodeposited. films with and without RexOy. The former chromizing coating was mainly composed of alpha(CrFe) phase and the latter coatings mainly composed of alpha(Cr, Ni) phase. All chromizing coatings were double-layered. However, the outer layer of coatings on the composite films was thicker and finer grained, in which the distribution of the RexOy particles was observed. The oxidation at 940degreesC showed that the RexOy-modifed chromizing coatings were profoundly oxidation resistant as compared to the other two RexOy-free coatings. It is proposed that the better performance of the RexOy-modifed chromizing coating was associated with dispersion of the RexOy particles, which exerted reactive element effect on the growth of chromia scale.
关键词	composite electrodepostion chromizing CeO2-dispersed chromizing coating high temperature oxidation reactive element effect
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000223339700031
出版者	TRANS TECH PUBLICATIONS LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/118622
专题	中国科学院金属研究所
通讯作者	Peng, X
作者单位	Chinese Acad Sci, Met Res Inst, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhu, L,Peng, X,Wang, F,et al. Development and oxidation of a RexOy- modified chromizing coating[J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,2004,461-464:255-263.
APA	Zhu, L,Peng, X,Wang, F,&Wu, W.(2004).Development and oxidation of a RexOy- modified chromizing coating.HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS,461-464,255-263.
MLA	Zhu, L,et al."Development and oxidation of a RexOy- modified chromizing coating".HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS 461-464(2004):255-263.