The Role of the Interface on the Mechanical Behavior of Metal Matrix Composites.

Abstract

The microstructural stability and mechanical behavior of the in-situ Co,Cr-(Cr,Co)7C3 composite and filamentary Ni-Mo and nichrome-tungsten composites have been characterized as a function of isothermal exposure and various regimes of thermal cycling. Properties examined were strength, toughness and resistance to fatigue crack propagation. Correlations were developed between microstructural change accompanying each mode of heat-treatment and the above properties. This provided the basis for the development of models for plastic flow and crack initiation/propagation in the two types of composite material which can account for the observed effect(s) of the heat-treatment imposed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA065042

Entities

People

  • Alan Lawłey

Organizations

  • Drexel University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Chemical Reactions
  • Composite Materials
  • Crack Propagation
  • Cracks
  • Electron Microscopy
  • Heat Treatment
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Metal Matrix Composites
  • Oxidation
  • Oxidation Resistance
  • Plastic Flow
  • Resistance
  • Toughness
  • Transition Temperature

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials