ALUMINIUM-BASED ALLOY Russian patent published in 1997 - IPC

FIELD: powder metallurgy, refractory aluminium alloys. SUBSTANCE: alloy comprises the following components, mas.%: chromium, 1.5-3.5; aluminium oxide, 0.01-1.0; zirconium, 1.5-3.5; manganese, 0.5-2.0; tungsten, 0.5-1.0; aluminium, the balance. Alloy has the following properties: at temperature 20 C its ultimate strength $$$ is equal 45-48 kg/sq.mm, its yield point $$$ is equal 40-41 kg/sq. mm, its relative elongation $$$ is equal 15-16%; at temperature 400 C its ultimate strength $$$ is equal 10-12 kg/sq.mm, its long-term strength for 100 h is equal 5.5-6.0 kg/sq.mm; at temperature 450 C, its ultimate strength is equal $$$ 7.5-8 kg/sq.mm; and its long-term strength for 100 h is equal 4.0-4.5 kg/sq.mm. EFFECT: enhanced heat-resistance.