Effect of Cl�?? on the corrosive wear of AISI 321 stainless steel in H2SO4 solution

[摘要] The effect of Cl^â€�?? on the corrosive wear behaviour of AISI 321 stainless steel in H₂SO₄ solution was studied via the corrosive wear rate, the load bearing capacity of passive film and the relationship between pitting and corrosive wear. There is a critical load at natural potential, below which the corrosive wear rate is slightly lowered by Cl^â€�??, while above which is increased. At natural potential there are more pits at low load than that at a higher one in the wear tracks and the pits are also deeper. The load bearing capacity is lowered by Cl^â€�?? at passive region and then the corrosive wear rate increased.

[学科分类] 材料工程

[关键词] Chloride ion;corrosive wear;stainless steel.