Modeling Impacts for Cold-Gas Dynamic Spray

Abstract

A one-dimensional penetration model has been developed to analyze the cold-gas dynamic spray process in hopes of establishing a constant minimum normalized penetration depth for particle adhesion. The simple model was in disagreement with results extrapolated from published copper-on-steel impact data. Possible reasons for the disagreement are discussed. A possible bonding mechanism is proposed that is dependent on the flow properties of both the particle and substrate.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2006
Accession Number
ADA454830

Entities

People

  • William S. de Rosset

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Adhesion
  • Bonding
  • Cold Gases
  • Copper
  • Data Analysis
  • Gases
  • Hardness
  • Materials
  • Measurement
  • Mechanics
  • Military Research
  • Modulus Of Elasticity
  • Particle Size
  • Particles
  • Stainless Steel
  • Tensile Strength
  • Thermal Spraying

Readers

  • Combustion and Flow Dynamics.
  • Computational Modeling and Simulation
  • Surface Coatings Technology.