Abstract
The corrosion factors of naval brass and copper metal coupled galvanically with stainless steel (SUS 32) in concentrated brine were investigated. The results were as follows:
1) The potential differences between stainless steel and naval brass or copper increased with the rise of temperature and with the decrease of dissolved oxygen in brine.
2) The corrosion rates of these metals were increased with the rise of temperature under a definite oxygen content and always decreased with the decrease of dissolved oxygen in brine.
3) In the case of galvanic couple of copper or naval brass with stainless steel, more than 95% of the corrosion rates of the former metals were attributed to selfcorrosion, and only several percent of total corrosion were due to the galvanic current.
