Fe-30Cr alloy specimens were pre-oxidized at two different oxygen partial pressures (10(super -16) and 10(super -19) atm) at 900 C and subsequently exposed to environments containing both oxygen and sulfur. The sulfur and oxygen partial pressures were maintained such that Cr(sub 2)O(sub 3) was the stable phase. The Cr(sub 2)O(sub 3) scales formed during pre-oxidation became rapidly unstable when exposed to an environment whose composition approached the chromium sulfide-chromium oxide ...
Reports by Author
