The influence of the dew point on the wettability of twinning-induced-plasticity steels by liquid Zn-0.23-wt% Al

被引：23
作者：
Kim, Yunkyum [1 ]
Shin, Kwang-Soo [2 ]
Jeon, Sun-Ho [3 ]
Chin, Kwang-Geun [3 ]
Lee, Joonho [1 ]
机构：
[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea
[2] Res Inst Ind Sci & Technol RIST, Pohang 790600, South Korea
[3] POSCO Tech Res Labs, Gwangyang 545090, South Korea
来源：
CORROSION SCIENCE | 2014年 / 85卷
关键词：
Seel; Zinc; TEM; Interface; Segregation; Selective oxidation; HIGH-STRENGTH STEELS; SELECTIVE OXIDATION; TWIP STEEL; CORROSION; ATMOSPHERE; OXIDES;
D O I：
10.1016/j.corsci.2014.04.034
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of the dew point on the wettability of the 17-wt% Mn twinning-induced-plasticity steels by liquid Zn-0.23-wt% Al alloy was investigated. Samples annealed at dew points >= -20 degrees C exhibited a higher contact angle which did not change with time and a poor coating quality during hot-dipping galvanizing. Samples annealed at dew points dew points <= -40 degrees C showed a relatively lower contact angle, leading to complete coating during hot-dip trials. The drastic change in the wetting behavior was explained by the selective oxidation on the surface (from a thick MnO layer to a relatively thin MnAl2O4 layer as dew point decreased). (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：364 / 371
页数：8
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