Control of Interface Properties of Light Metal Composites through In-situ Metallurgical Processing.

Abstract

The properties of continuously reinforced aluminum composites have been notoriously unpredictable and prone to extreme scatter. Early results from MIT studies that preceded this study showed that matrix metallurgy was important in yet to be understood ways. As MMCC and MIT researchers working in collaboration investigated the phenomena, we discovered that controlled equilibrium precipitation on the fiber surface could be used to control interfacial delamination, long recognized as necessary for toughening of continuously reinforced metal matrix composites. This report summarizes our present understanding of this phenomena and points the way toward applying deep metallurgical understanding to the use of commercial alloys to optimize the mechanical behavior of continuously reinforced MMCs. jg p.9

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Document Details

Document Type
Technical Report
Publication Date
Sep 02, 1994
Accession Number
ADA299172

Entities

People

  • James A. Cornie
  • Mark A. Ryals
  • Maxim L. Seleznev
  • Shi-yu Zhang

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aluminum Alloys
  • Chemistry
  • Composite Materials
  • Grain Boundaries
  • Heat Treatment
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Metal Matrix Composites
  • Metallurgy
  • Particle Size
  • Particles
  • Phase Diagrams
  • Physical Metallurgy
  • Pressure Vessels
  • Single Crystals

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Reinforced Composite Materials
  • Systems Analysis and Design