Studies on the Hot Corrosion of a Nickel-base Superalloy, Udimet 7001984 - 47 pages |
Common terms and phrases
accelerating corrosion alloy amount of Na2SO4 beneath the zone breakaway oxidation period coated with 3.5 corroded at 950 corrosion experiment corrosion for U-700 Cr content degradation due depleted region depleted zone discrete sulfide particles doses of Na2SO4 formation of large formation of massive formation of sulfides gas turbines Goebel and Pettit grain boundaries heavier doses hot corrosion induction period initial corrosion kinetics initial period interconnected internal sulfides interconnected sulfide network intermediate doses internal oxides large interconnected sulfides length linear rate low and intermediate melt penetration mg/cm² Na2SO4 mmol Mo03 melt mode of degradation Molybdenum Na20 activity Na2CrO4 Na2SO4 and corroded Na2SO4 melt nickel-base superalloy oxidation of sulfides period of accelerating period of corrosion preferential oxidation present studies rate of weight samples second breakaway oxidation shown in figure SO2 evolution SO2 evolved Specific weight gain sulfide formation sulfides are formed sulfur temperature top surface total weight gain Udimet water-washed solution