Erosive Effects of Various Pure and Combustion Generated Gases on Metals

Abstract

The erosive effect of nitrogen-oxygen mixtures on 4340 steel nozzles has been studied using gas pressure transients produced by a ballistic compressor. Attention has been directed at threshold phenomena on both uncoated and coated specimens. Samples have been studied using scanning electron microscopy, Auger spectroscopy, mass loss and light microscopic methods. In all cases mass loss was associated with a melting of the nozzle material and material removal by ablation. An attempt has been made to produce some resistive thin film gauges to study the time-temperature history of a simulated eroding surface. Preliminary experimental data is presented.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1982
Accession Number
ADA129493

Entities

People

  • Barrie S. Royce

Organizations

  • Princeton University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Boundary Layer
  • Ceramic Materials
  • Combustion
  • Compressors
  • Electron Microscopes
  • Electron Microscopy
  • Elements
  • Films
  • Fluid Mechanics
  • Gas Flow
  • High Pressure
  • Ion Bombardment
  • Mechanics
  • Metals
  • Microscopy
  • Surface Temperature
  • Thin Films

Fields of Study

  • Materials science
  • Physics

Readers

  • Combustion science or combustion engineering.
  • Surface Coatings Technology.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene