Gun Tube Surface Kinetics and Implications

Abstract

Current theories concerning gun tube erosion consider that erosion can occur under various conditions. Propellant product gases are known to react with the surface resulting in an altered surface material which may melt or pyrolyze due to a lower melting temperature than that of the gun steel and or weakened mechanical properties. Previous surface reaction studies by the authors used a generalized equilibrium scheme with a control volume analysis to represent surface reactions occurring during a cannon firing. This led to a post reaction treatment at the interface which incorporated the subsurface diffusion of species to limit the surface reaction. In this study, the surface reactions and rates are specified explicitly with published rates and guidance from fundamental molecular modeling results. The results demonstrate the utility of the employed surface reaction mechanism as well as the incorporation of finite rate surface kinetics.

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Document Details

Document Type
Technical Report
Publication Date
Apr 26, 2001
Accession Number
ADP012467

Entities

People

  • Cary Chabalowski
  • Michael J. Nusca
  • Paul J. Conroy
  • William E Anderson

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Carbon Monoxide
  • Chemical Kinetics
  • Chemical Reactions
  • Chemistry
  • Combustion
  • Computational Fluid Dynamics
  • Dielectric Gases
  • Equations
  • Heat Transfer
  • Materials
  • Mechanical Properties
  • Physical Chemistry
  • Physical Properties
  • Propellants
  • Reaction Mechanisms
  • Stresses
  • Surface Reactions

Fields of Study

  • Materials science

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion science or combustion engineering.
  • ballistics.