Abstract
1. We have shown that the Ti+6% Al+2–3% W alloy is more heat-resistant than the BT3 alloy. 2. Heat resistance of the Ti+6% Al+2–3% W alloy subjected to 100h at 400, 450, and 500°C is higher than that of the BT3 alloy. Therefore, the diffusional processes are slower in alloys containing tungsten than in alloys containing chromium. 3. We have shown that alloying the BT3-1 alloy with tungsten increases its strength without decreasing its plasticity of heat resistance. 4. Replacement of chromium with tungsten in the BT3-1 alloy increases the creep resistance at 450°C considerably. The creep resistance increases by a factor of two.
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