| Enhanced corrosion resistance in Fe-based amorphous coatings through eliminating Cr-depleted zones | |
| Wu, J; Zhang, SD; Sun, WH; Gao, Y; Wang, JQ; Wang, JQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China. | |
| 2018-05-15 | |
| Source Publication | CORROSION SCIENCE
 |
| ISSN | 0010-938X |
| Volume | 136Pages:161-173 |
| Abstract | Localised Cr depletion caused by defects in Fe-based amorphous coatings, e.g. pores, oxides and crystalline phases, is thought to be the dominating reason for decreasing corrosion resistance in the coatings. An electrochemical polarisation treatment was used to selectively dissolve Cr-depleted zones in the coatings. The corrosion behaviour of the coatings was studied by potentiodynamic and potentiostatic polarisation and electrochemical impedance spectroscopy in 3.5 wt.% NaCl solution. With the elimination of Cr-depleted zones the corrosion resistance of the coatings was enhanced, with an order of magnitude reduction in the passive current density together with the improvement of passive film stability.; Localised Cr depletion caused by defects in Fe-based amorphous coatings, e.g. pores, oxides and crystalline phases, is thought to be the dominating reason for decreasing corrosion resistance in the coatings. An electrochemical polarisation treatment was used to selectively dissolve Cr-depleted zones in the coatings. The corrosion behaviour of the coatings was studied by potentiodynamic and potentiostatic polarisation and electrochemical impedance spectroscopy in 3.5 wt.% NaCl solution. With the elimination of Cr-depleted zones the corrosion resistance of the coatings was enhanced, with an order of magnitude reduction in the passive current density together with the improvement of passive film stability. |
| description.department | [wu, j. ; zhang, s. d. ; sun, w. h. ; wang, j. q.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [wu, j.] univ sci & technol china, sch mat sci & engn, shenyang 110016, liaoning, peoples r china ; [gao, y.] northeastern univ, minist educ, key lab electromagnet proc mat, shenyang 110819, liaoning, peoples r china |
| Keyword | Metallic-glass Coatings Stainless-steel Surface Distributions Erosion-corrosion Pitting Corrosion Wear-resistance Heat-treatment Sam 1651 Behavior Alloys |
| Subject Area | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | National Key Research and Development Program of China [2016YFB1100204]; National Natural Science Foundation of China [51471166, 51131006, 51701214] |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000430630500014 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/79305 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, JQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China. |
| Recommended Citation GB/T 7714 | Wu, J,Zhang, SD,Sun, WH,et al. Enhanced corrosion resistance in Fe-based amorphous coatings through eliminating Cr-depleted zones[J]. CORROSION SCIENCE,2018,136:161-173. |
| APA | Wu, J,Zhang, SD,Sun, WH,Gao, Y,Wang, JQ,&Wang, JQ .(2018).Enhanced corrosion resistance in Fe-based amorphous coatings through eliminating Cr-depleted zones.CORROSION SCIENCE,136,161-173. |
| MLA | Wu, J,et al."Enhanced corrosion resistance in Fe-based amorphous coatings through eliminating Cr-depleted zones".CORROSION SCIENCE 136(2018):161-173. |
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