摘要
A Zn-Mg coating was prepared by magnetron co-sputtering method on carbon steel with Zn layer pre-deposited using an alkaline non-cyanide zinc bath. The morphologies, chemical compositions, mechanical properties and anticorrosion properties of specimens were investigated. The microhardness of the Zn-Mg coating increased from 244HV25 of the electroplated Zn coating to 323HV25. The electrochemical test in NaCl solution showed that the Zn-Mg coating had a passive region around the potential of 300mV. Salt water immersion test in 3.5wt.% NaCl solution also showed corrosion property improvement. The red rust generation time of Zn-Mg coating was doubled compared with the Zn coating. The possible mechanism of the improvement of corrosion resistance of Zn-Mg coating is proposed.
源语言 | 英语 |
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页(从-至) | 126-130 |
页数 | 5 |
期刊 | Surface and Coatings Technology |
卷 | 219 |
DOI | |
出版状态 | 已出版 - 25 3月 2013 |
已对外发布 | 是 |