Accession Number:

AD0758276

Title:

Erosion-Resistant Coating for Titanium

Descriptive Note:

Final rept. 30 Jun 1971-30 Jul 1972

Corporate Author:

PRATT AND WHITNEY AIRCRAFT WEST PALM BEACH FL FLORIDA RESEARCH AND DEVELOPMENT CENTER

Personal Author(s):

Report Date:

1973-01-01

Pagination or Media Count:

87.0

Abstract:

NITRIDES, BORIDES, ADHESION, STRESS CORROSION, PLATING, NICKEL, COMPRESSOR BLADES, IMPELLERSABRASION RESISTANT COATINGS, TITANIUM NITRIDES, TITANIUM CARBIDES, TITANIUM ALLOY 6AL 4V, TITANIUM BORIDEThe objective of the program was to develop the application of TIKOTE-C on the Ti-6Al-4V alloy with minimum degradation of mechanical properties. The approach for accomplishing this objective was to protect the titanium microstructure with an intermediate nickel barrier, as well as to provide a ductile layer which might inhibit crack propagation. In addition, embrittling effects due to gas absorption during the coating process were minimized by using a lower process temperature. The program was divided into two major categories 1 TIKOTE-C coating application development, and 2 extensive mechanical tests. A brief evaluation of the fatigue characteristics and erosion resistance of nickel-plated and titanium diboride-coated titanium test specimens was made.

Subject Categories:

  • Coatings, Colorants and Finishes
  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE