Accession Number:

ADA175323

Title:

Structural Property Effects for Platinum Modified Aluminide Coatings.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1986-09-01

Pagination or Media Count:

57.0

Abstract:

Aluminide and platinum modified aluminide coatings have proven to be effective and economical means of protecting gas turbine components from oxidative and corrosive attack. In order to maintain coating integrity, the response of the coating-integrity, the response of the coating-substrate system to strains imposed by thermal expansion mismatch and external stresses must be known. Selected coating systems were examined on an IN 738 substrate to determine the ductile to brittle transition temperature DBTT and the residual strains caused by the presence of the coating. The coating morphology was examined by scanning electron microscopy and electron probe microanalysis, and correlations between coating microstructure and DBTT were established.

Subject Categories:

  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE