Accession Number : AD0289003

Title :   GAS TURBINE AND JET ENGINE FUELS

Corporate Author : TEXAS UNIV AUSTIN OPTICAL RESEARCH LAB

Personal Author(s) : STREETS,WILLIAM L.

Report Date : 01 NOV 1962

Pagination or Media Count : 1

Abstract : Study of the effects of S in jet fuels on the durability of engine hot section components was continued. The previously reported 2000 F 6 hr turbine guide vane metal loss tests were extended to a total duration of 12 hrs. Twelve-hour testsARE NOW COMPLETE ON Waspalloy, Udimet 500, Haynes Alloy 25, Rene 41 and Hastelloy R-235 using the S-free base fuel. Data are not yet available with the S contaminated fuel but will be forthcoming. The results of these 2-in combustor tests indicate that guide vane metal loss is approximately a linear function of test time for these alloys operating with this isoparaffinic JP-5 type S-free fuel for a 12-hr duration. No marked acceleration of metal loss rate was observed between 6 and 12 hours. The extension of test duration did not alter the relative rankings of the alloys appreciably. Haynes Alloy 25 remained lowestpe S-free fuel for a 12-hr duration. No marked acceleration of metal loss rate was observed between 6 and 12 hours. The extension of test duration did not alter the relative rankings of the alloys appreciably. Haynes Alloy 25 remained lowest in metal loss and Hastelloy R-235 highest. Waspalloy and Rene 41 approached the same metal loss at 12 hours. Udimet 500 exhibited metal losses somewhat below Waspalloy and Rene 41 but still roughly intermediate between the Hastelloy R-235 and Haynes Alloy 25 extremes. (Author)

Descriptors :   *JET ENGINE FUELS, ALLOYS, CHROMIUM ALLOYS, COBALT ALLOYS, COMBUSTION, COMBUSTION CHAMBER GASES, GAS TURBINES, HIGH TEMPERATURE, IMPURITIES, NICKEL ALLOYS, SULFUR, TUNGSTEN ALLOYS

Distribution Statement : APPROVED FOR PUBLIC RELEASE