Hypervelocity Combustion Sprayed Protective Coatings, An Assessment of the Technology

Abstract

High Velocity Oxy-Fuel (HVOF) technology is being evaluated in this program. A number of materials are being HVOF sprayed, characterized and tested. Preliminary results point to a dramatic enhancement of properties using HVOF technology vs. traditional plasma spraying. It is proposed to offer an extension of HVOF in this proposal for renewal involving a test of the concept that the fatigue life of a machine element can be extended by HVOF coating. HVOF involves the combustion of an oxygen fuel mixture to achieve high gas velocities which are used to heat and accelerate a powdered feedstock to produce a coating. The goal of this project is to evaluate the coatings produced by these HVOF systems relative to various marine-based applications. This proposal will first outline the evaluation methods that are being used and some preliminary results will be presented.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1990
Accession Number
ADA242184

Entities

People

  • Herbert Herman

Organizations

  • Stony Brook University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Chambers
  • Coatings
  • Combustion
  • Combustion Chambers
  • Diffraction
  • Dosage Forms
  • Electric Arcs
  • Gas Flow
  • Materials
  • Materials Science
  • Particle Size
  • Particles
  • Powders
  • Standards
  • Thermal Spraying
  • X Rays
  • X-Ray Diffraction

Readers

  • Surface Engineering/Surface Coating Technology.
  • Systems Analysis and Design

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow