ELECTROCHEMICAL CORROSION OF 27SiMn LOW-ALLOY STEEL IN ANTHRACITE WITH DIFFERENT MINE WATER CONTENTS
27SiMn在不同矿井水含量的无烟煤环境中的电化学行为

A mixture of anthracite,mine water and mine gas is a corrosion medium.The contents of mine water and the particle size of anthracite in the experiment were prepared to simulate actual environment in anthracite mine.The electrochemical corrosion behavior of 27SiMn low-alloy steel in four anthracite samples with 10%,15%,20% and 30%(mass.) mine water respectively was studied by measuring polarization curves.The results show that when the mine water content is higher than 15%,the corrosion of 27SiMn low-alloy steel is more serious than that in mine water only;and when the mine water content amounts to 20% the galvanic current density reaches the maximum.