Table of Contents
Low-Cost Aluminum Metal Matrix Composite Materials
Outline
Commercial Materials Overview
Basic Composite Processing
Powder Metallurgy DRA Process Description
Wrought MMC Characteristics
Wrought MMC Properties
Extrusion Cost Analysis (Current)
Extrusion Cost Analysis (5 Year Projection)
Cast MMC Process (Lanxide)
Cast MMC Process (Duralcan)
Cast MMC Microstructure
Cast MMC Characteristics
Cast MMC Properties
Low Cost Composite Processing
Low Cost Aluminum Matrix Materials
Low Cost Reinforcements
Ceramic Particle Reinforcements
Ceramic Particle Reinforcements (con’t)
“Machinable” MMC Example
Ceramic Particle Reinforcements (con’t)
Alternative Reinforcements
Hybrid Reinforcement Concept
GrA-Ni® + SiC Reinforced MMC
GrA-Ni® MMC Wear Resistance
Hybrid Reinforcement Issues
Flyash Reinforcement Concept
Benefication of Flyash Reinforcement
Benefication of Flyash Reinforcement
Flyash Reinforcement Particles
Flyash-Reinforced P/M MMC
Flyash-Reinforced MMC Properties
Flyash Reinforcement Issues
Dross Reinforcement Particles
Dross-Reinforced MMC
Dross-Reinforced MMC Properties
Dross Reinforcement Issues
In Situ Reinforcement Concept
In Situ MMC Microstructure
In Situ MMC Properties
In Situ Reinforcement Issues
Low Cost Compositing Processes
“Direct” P/M Processing Concepts
“Direct” Powder Metallurgy Issues
Improved Stir Casting
Improved Stir Casting Benefits and Issues
In Situ Compositing Process
In Situ Compositing Process Issues
Summary
Challenges |