Accession Number:

AD0603422

Title:

EFFECT OF JP-5 SULFUR CONTENT ON HOT CORROSION OF SUPERALLOYS IN MARINE ENVIRONMENT

Descriptive Note:

Progress rept. no. 1

Corporate Author:

PHILLIPS PETROLEUM CO BARTLESVILLE OK

Personal Author(s):

Report Date:

1964-08-04

Pagination or Media Count:

26.0

Abstract:

An exploratory program was undertaken to indicate the effect of test variables on the hot corrosion of turbine blade and turbine nozzle guide vane materials. This information will be used to establish the test procedures for a subsequent statistical study to evaluate the effect of JP-5 sulfur content. This program included an evaluation of the effect of low 0.0002, and high 0. 40 weight per cent fuel sulfur content at six gas temperatures 1200, 1400, 1600, 1800, 2000, and 2200 F on metal loss of six superalloys Udimet 700, Stellite 31, Hastelloy R-235, Haynes Alloy 25, Sierra Metal 200 and Udimet 500 in the presence of 10 ppm sea salt in the combustor air. A cascade test specimen holder was designed and fabricated which permitted simultaneous evaluation of the effect of sulfur on six superalloys. The results obtained showed that 1 fuel sulfur inhibited metal loss at gas temperatures of 1800 F and above and 2 fuel sulfur increased metal loss for some superalloys at 1600 F and below. This reversal may be associated with the presence or absence of solid sodium sulfate freezing point of 1623 F and a future program should include one temperature below this point.

Subject Categories:

  • Inorganic Chemistry
  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE