Accession Number : AD0745292

Title :   Effect of Vanadium and Sodium Compounds on Accelerated Oxidation of Nickel-Base Alloys.

Descriptive Note : Annual rept. 1 Mar 71-29 Feb 72,

Corporate Author : UNITED AIRCRAFT RESEARCH LABS EAST HARTFORD CONN

Personal Author(s) : Bornstein,Norman S. ; DeCrescente,Michael A. ; Roth,Hilton A.

Report Date : JUN 1972

Pagination or Media Count : 59

Abstract : The relationship between vanadium oxide, Na2SO4 and accelerated rates of oxidation of nickel base alloys was studied. It was shown that oxides such as V2O5 and MoO3 behave like Cr2O3 (which is an effective sulfidation inhibitor) and effectively reduce the oxide ion content of Na2SO4. However, whereas Cr2O3 is relatively innocuous with respect to Al2O3, the oxides of V2O5 and MoO3 are liquids at gas turbine operating temperatures and readily flux alumina rich oxide scales. (Author)

Descriptors :   (*NICKEL ALLOYS, *CORROSION), (*SULFATES, CORROSION), (*VANADIUM COMPOUNDS, CORROSION), VANADATES, OXIDES, GAS TURBINES, HEAT RESISTANT ALLOYS, HEAT RESISTANT METALS

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE