Mechanical and Microstructural Effects of Cold Spray Aluminum on Al 7075 Using Kinetic Metallization and Cold Spray Processes (Preprint)

Abstract

The objective of this study was to examine how the deposition of a thin layer of Commercially Pure (CP) Al on thin plates of Al-7075 T6 affects the tensile properties of the substrate. The CP Al was deposited using both Cold Spray and Kinetic Metallization. Cold Spray utilizes both He and N2 as the carrier gas and a supersonic nozzle while Kinetic Metallization uses only He as the carrier gas and a sonic or friction compensated nozzle. A test matrix was established to evaluate the coatings applied by both methods. Characterization of the coatings included microstructural analysis, hardness measurements, and tensile, S-N fatigue and bend tests. Results of the characterization are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA470138

Entities

People

  • Brent Shoffner
  • Donna Ballard
  • Douglas E. Wolfe
  • John Barnes
  • John K. Potter
  • Timothy J. Eden
  • Victor Champagne

Organizations

  • Lockheed Martin Aeronautics

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Coatings
  • Electrical Conductivity
  • Hardness
  • Heat Treatment
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Military Research
  • Nozzles
  • Residual Stress
  • Substrates
  • Tensile Properties
  • Thermal Spraying
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Combustion and Flow Dynamics.
  • Structural Health Monitoring of Composite Structures.
  • Thin Film Deposition Science.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow