Processing, structure and properties of aluminum-aluminide layered composites
Conference
·
OSTI ID:900586
Laminate composites comprising of alternating aluminum and aluminide layers were produced by reactive bonding Al foils with either Ni, or Mg foils. Al foils (0.250 mm thick) were bonded to the thinner Ni foils (e.g., 0.025mm thick) by hot-pressing at 600°C and 20 MPa for 120 minutes. This produced a composite microstructure consisting of alternating Al and NiAl layers, with a variety of phases at the interface. This structure could be driven to equilibrium (e.g., alternating Al and Al3Ni layers) by subsequent vacuum heat-treatment. For Mg-Al laminates, hot-pressing was performed at 400°C for 120 minutes. This produced at composite consisting of alternating Al, Mg2Al3, Mg17Al12, and Mg layers. Presented will be the microstructure, as well as, the tensile properties of these composites.
- Research Organization:
- Albany Research Center (ARC), Albany, OR
- Sponsoring Organization:
- USDOE - Office of Fossil Energy (FE)
- OSTI ID:
- 900586
- Report Number(s):
- DOE/ARC-1999-063
- Country of Publication:
- United States
- Language:
- English
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