Corrosion-induced release of the main alloying constituents of manganese–chromium stainless steels in different media
Abstract
The main focus of this paper is the assessment of release rates of chromium, nickel, iron and manganese from manganese–chromium stainless steel grades of low nickel content. The manganese content varied between 9.7 and 1.5 wt% and the corresponding nickel content between 1 and 5 wt%. All grades were exposed to artificial rain and two were immersed in a synthetic body fluid of similar pH but of different composition and exposure conditions. Surface compositional studies were performed using
All grades, independent of media, revealed a time-dependent metal release process with a preferential low release of iron and manganese compared to nickel and chromium while the chromium content of the surface