Effect of heat treatment on corrosion resistance and adhesion property in Zn-Mg-Zn multi-layer coated steel prepared by PVD process

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• 作者：Jong Min Byun^a ; ^b ; Su-Ryong Bang^b ; Hyun Woo Kim^b ; Tae-Yeob Kim^c ; Suk-Jun Hong^c ; Young Do Kim^a ; ^b ; ^{ydkim1@hanyang.ac.kr}
• 关键词：Zn-Mg alloy ; Alloying behavior ; Heat treatment ; Corrosion resistance ; Adhesion property
• 刊名：Surface and Coatings Technology
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：309
• 期：Complete
• 页码：1010-1014
• 全文大小：1757 K
• 卷排序：309

文摘

The Zn, Mg and Zn were sequentially coated on steel sheet by PVD method. The effect of heat treatment on the phase transition, corrosion resistance, and adhesion property was investigated. As heat treatment time increased for 360 s, the coating layer was entirely composed of intermetallics (Mg2Zn11 and MgZn2). The red rust generation time was 624 h in heat-treated sample for 360 s. The delamination of coating layer was observed from heat-treated sample for 240 s which were composed of 85% intermetallics.