Accession Number:

ADA470138

Title:

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

Descriptive Note:

Journal article

Corporate Author:

LOCKHEED MARTIN AERONAUTICAL SYSTEMS MARIETTA GA

Report Date:

2007-01-01

Pagination or Media Count:

25.0

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.

Subject Categories:

  • Coatings, Colorants and Finishes
  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE