Microstructure and Aging Response of SiCp Reinforced A356 A1 Metal Matrix Composite Subject to Post Fabrication Thermomechanical Processing.

Abstract

The microstructure and aging behavior of a centrifugally cast A356 Al-SiCp metal matrix composite was studied as a function of post-fabrication processing via transmission electron microscopy (TEM) and differential scanning caloritemetry (DSO). The effects of total rolling strain, strain per rolling pass and rolling temperature on both microstructure and precipitation behavior were investigated. It was found that post fabrication processing had relatively little effect on the kinetics of the various precipitation processes that constitute aging, although they affected the amounts of the various precipitates significantly. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA292975

Entities

People

  • Donald V. Avenger

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Aluminum
  • Aluminum Alloys
  • Castings
  • Composite Materials
  • Electron Microscopy
  • Fabrication
  • Hardness
  • Kinetics
  • Materials
  • Materials Engineering
  • Mechanical Properties
  • Metal Matrix Composites
  • Microstructure
  • Precipitation
  • Silicon Carbide
  • Transitions
  • Transmission Electron Microscopy

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Microelectronics