Author(s)

Chen Jun

Corresponding Author

Chen Jun

ABSTRACT

The aim of this paper is to study the corrosion wear behaviors of Hastelloy C276 alloy sliding against AISI 316 stainless steel in artificial seawater and distilled water. The electrochemical properties of this alloy are measured by potentiodynamic polarization method. The corrosion wear properties have been evaluated by an MRH-03 type ring-on-block test rig in artificial seawater with different salinity. The wear loss can be measured by the difference of weight before and after corrosion wear tests. The results show that the typical passivation behavior can be found for Hastelloy C276 alloy in seawater. The Hastelloy C276 alloy has the lowest corrosion current density in 3 % seawater, which can be attributed to the synergism of salt concentration and dissolved oxygen. The friction coefficients are in general larger in distilled water compared with seawater. The wear loss in seawater is always higher than that in distilled water. Seawater can reduce friction coefficient and wear resistance.

KEYWORDS

Corrosion, Wear, Hastelloy C276 alloy, Seawater.