Li Quanan

Sliding Wear-corrosion Performance of AISI 316 Stainless Steel Against Alumina in Artificial Seawater

The sliding wear-corrosion of AISI 316 stainless steel against alumina in artificial seawa- ter was investigated by means of weight loss test, electrochemical measurement and microstructure examination. The result shows that in the presence of wear the corrosion rate of AISI 316 stainless steel is obviously enhanced; the weight loss of the steel caused by corrosion-wear is higher than that under cathodic protection; the weight loss due to merely mechanical wear amounts to ca 76%~ 88% of the total weight loss of the wear-corrosion, which shows that the pure mechanical wear is the main factor in corrosion-wear process; however it may not be ignored that the weight loss corre- sponding to the synergistic effect between corrosion and wear amounts to ca 12%~24% of the total weight loss of the wear-corrosion.