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Development Of A Ti-Al-Cb Alloy For Use At 1200 - 1800 F

Report Number: ASD TR 61-446 Part 2
Author(s): McAndrew, Joseph B.; Simcoe, Charles R.
Corporate Author: Armour Research Foundation
Laboratory: Air Force Materials Laboratory
Date of Publication: 6/1/1963
Pages: 40
Contract: AF 33(616)-7262
Project: 7351
Task: 735105
AD Number: AD0408732

Abstract:
A study was made on ti-Al-Cb system for high temperature alloys with useful strengths above 1200 F. During the present program com position variations included: columbium from 17.5 to 35%, aluminum from 12.5 to 17.5%, and the addition of smaller amounts of zirconium, hafnium, tin, carbon or boron. Short-time tensile properties were determined for one strain rate (0.0029 in./in./min.) at 1600 F. Stress-rupture properties were obtained for a variety of temperatures and stresses. The Larson-Miller parameter was used to present these stress-rupture data so that the rupture life at various temperatures could be presented on a single plot for each alloy.

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