Abstract
This investigation examines the effects of strain-induced martensite on the corrosion resistance of a type 304L stainless steel. Based on electrochemical critical pitting temperature determinations, the presence of varied amounts of α’ martensite had no measurable effects on the pitting resistance of the alloy. The general corrosion rates of the 304L alloy measured in boiling 65wt.% nitric acid and boiling 20wt.% phosphoric acid were not affected by the presence of α’ martensite. The active corrosion rate measured in 10wt.% sulfuric acid at 50°C was found to increase with increasing amounts of α’ martensite. The increased hydrogen embrittlement susceptibility of the 304L alloy with increasing amounts of α’ martensite is discussed.
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2000
Association for Materials Protection and Performance (AMPP)
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