Accession Number:

ADA031363

Title:

Hot Corrosion of High Temperature Alloys.

Descriptive Note:

Final scientific rept. 15 May 72-14 May 75,

Corporate Author:

LIVERPOOL UNIV (ENGLAND) DEPT OF METALLURGY AND MATERIALS SCIENCE

Personal Author(s):

Report Date:

1976-08-20

Pagination or Media Count:

51.0

Abstract:

Hot corrosion is a form of accelerated oxidation of alloys which can occur in combustion gases in the presence of impurities. The characteristics of the reaction are defined by describing practical examples, and then the results of a variety of laboratory experiments are considered in relation to the practical process. The temperature dependence and kinetics of the corrosion are briefly presented, and the effect of alloying elements is discussed high chromium contents are required for good corrosion resistance, but there is no general agreement on the effect of other alloy elements. A number of mechanisms for hot corrosion are described and discussed in relation to the practical results.

Subject Categories:

  • Properties of Metals and Alloys
  • Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE