Abstract
Aluminum-rich intermetallic particles are potential reinforcements for aluminum matrix composites (AMCs) due to several desirable properties including low density and coefficient of thermal expansion, high modulus and melting temperature, and good potential for recycling. This chapter focuses on the liquid metallurgy processing of AMCs reinforced with intermetallic phases such as Al3Ti, Al3Zr, Al3Ni, and Al3Fe. In situ casting using exothermal reactions between elements or between elements and compounds is widely used to synthesize AMCs reinforced with intermetallic phases. The formation mechanism and the reaction mechanisms of various intermetallic systems are presented in this chapter. Typical microstructures as well as mechanical and tensile properties are explained. The effect of casting parameters is included for some Al intermetallic systems. Techniques such as rapid solidification processing (RSP) and directional solidification using high-energy magnetic field are also discussed. This chapter ends with future trends including secondary processing of AMCs as well as in situ synthesis of intermetallic alloys and composites using friction stir processing (FSP).
| Original language | English |
|---|---|
| Title of host publication | Intermetallic Matrix Composites |
| Subtitle of host publication | Properties and Applications |
| Publisher | Elsevier |
| Pages | 167-202 |
| Number of pages | 36 |
| ISBN (Electronic) | 9780857093462 |
| ISBN (Print) | 9780857093578 |
| DOIs | |
| Publication status | Published - 1 Jan 2018 |
Keywords
- Aluminum matrix composite
- Casting
- Exothermic reaction
- Microstructure.
- Reaction mechanism
- Trialuminide
ASJC Scopus subject areas
- General Engineering
- General Materials Science