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Corrosion performance of ZrN/ZrO2 multilayer coatings deposited on 304 stainless steel using multi-arc ion plating
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lei, Zhefeng Zhang, Qingqing Zhu, Xiaodong Ma, Dayan Song, Zhongxiao Fu, Yong Qing |
| Copyright Year | 2018 |
| Abstract | Abstract Coatings of single-layer ZrN, bilayer and multilayer ZrN/ZrO 2 were deposited onto 304 stainless steel using a multi-arc ion plating technique, and their corrosion properties were tested in various solutions of 3.5 wt% sodium chloride (NaCl), 10 wt% and 20 wt% hydrochloric (HCl) acids, respectively.Results showed that the single-layer ZrN coating resisted the corrosion in the HCl acid with a concentration of 10 wt%, and the multilayer ZrN/ZrO 2 coating acted as an effective protective layer in 20 wt% HCl solution. Polarization curve of the bilayer ZrN/ZrO 2 coated specimens showed the lowest corrosion current density in 3.5 wt% NaCl and 20 wt% HCl solutions. However after polarization tests, the bilayer coating showed severe delamination after exposed in air, due to the large coating stress and brittleness of oxide ceramic layer. The multilayer ZrN/ZrO 2 coating exhibited similar corrosion potentials and corrosion current densities compared with those of the bilayer coating. However, there was hardly any microscopic failure observed on the surfaces of the multilayer coatings after tested in all chloride solutions, which is attributed to the combined effects including improvement in coating toughness due to the multilayer design and ZrN sub-layer, reduced coating stress, and good corrosion resistance from the ZrO 2 sub layer. |
| Starting Page | 170 |
| Ending Page | 176 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.apsusc.2017.06.273 |
| Volume Number | 431 |
| Alternate Webpage(s) | http://nrl.northumbria.ac.uk/31297/1/1-s2.0-S0169433217319281-main.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.apsusc.2017.06.273 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
