Effect of Scratch Size on Hydrogen Permeation Behavior of Zinc Coated Steel during Wet and Dry Corrosion Tests

被引：0
|
作者：
Sakairi, Masatoshi [1 ]
Hashimoto, Takumi [2 ]
机构：
[1] Hokkaido Univ, Fac Engn, Kita Ku, Kita 13,Nishi 8, Sapporo, Hokkaido 0608628, Japan
[2] Hokkaido Univ, Grad Sch Engn, Kita Ku, Kita 13,Nishi 8, Sapporo, Hokkaido 0608628, Japan
来源：
ISIJ INTERNATIONAL | 2021年 / 61卷 / 04期
关键词：
coated steel; scratch; laser machining; hydrogen permeation; wet and dry corrosion; SURFACE CONDITIONS; GRAIN-REFINEMENT; EMBRITTLEMENT; ENVIRONMENT; RESISTANCE; FRACTURE; CREATION; ENTRY;
D O I：
10.2355/isijinternational.ISIJINT-2020-259
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The influence of scratch size on the hydrogen permeation behavior of Zn coated steel during wet and dry cycle corrosion tests was investigated electrochemically. A size controlled scratch was formed on Zn coated steels with a pulsed YAG laser machining technique. The hydrogen permeation current was observed independent of formed scratch size. The periodic changes of the hydrogen permeation currents following the cyclic changes of the relative humidity were observed. After the tests, the red rust and zinc-hydroxychloride (simonkolleite) were observed at initially placement of NaCl solution. The total amount of permeated current did not proportionally increase with increasing the formed scratch area, indicating that the corrosion products played an important role in the hydrogen permeation behavior during wet and dry corrosion.
引用
收藏
页码：1099 / 1103
页数：5
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