Initial Corrosion Behavior of Carbon Steel and High Strength Steel in South China Sea Atmosphere
The corrosion performance of carbon steel and three kinds of high-strength steels is com-paratively assessed via outdoor exposure in marine atmosphere of the South China Sea in a test site at Wenchang area of Hainan Province,which provides data support and theoretical basis for the develop-ment of steels resistant to atmospheric corrosion in the South China Sea.Four kinds of steel,Q235B,Q350EWR1,Q355 and Q345NQR2,were selected as the testing materials.Outdoor corrosion tests were carried out for half a year and one year respectively,and the tested steels was characterized by means of mass loss measurement,metallographic observation and electrochemical analysis.Serious uniform corro-sion occurred on the surface of the four steels.Based on the analysis results,the corrosion resistance of the four kinds of steels in the marine atmosphere of the South China Sea is ranked as the following se-quence:Q355＞Q345NQR2＞Q235B＞Q350EWR1.
South China Seamarine atmospheric environmentatmospheric corrosion testhigh strength steelelectrochemical test
NETL
NSTL
万方数据
维普
