DEVELOPMENT OF ACTIVE-EUTECTOID BASE ALLOYS. Period covered: January 1, 1957 to December 31, 1957
Titanium-copper alloys form an active eutectoid titanium alloy system in which the decomposition of the beta phase to alpha plus compound occurs rapidly. This alloy development program is a study of the effect of stepwise additions of Al and/or Sn and/or Zr to binary Ti-2Cu, Ti-4Cu, and Ti-6Cu alloys. The alloys were forged as far as possible in the alpha + beta field and annealed at 750 C for 24 hours to alpha plus compound. The alloys were evaluated by tensile tests at room and elevated temperatures. Limited stress-rupture and stability tests were also carried out. Several alloys showed excellent tensile properties particularly in the range 1000 to 1200 F. A Ti-6Cu -7Al -6Zr alloy was outstanding, showing a tensile strength of 108,900 psi at 1200 F. These alloys show promise of utility in the 1000 to 1200 F range. Instability apparently associated with the Ti-Al phases was encountered. (auth)
- Research Organization:
- New York Univ., New York. Coll. of Engineering
- DOE Contract Number:
- AF33(616)-3942
- NSA Number:
- NSA-13-003843
- OSTI ID:
- 4287162
- Report Number(s):
- WADC-TR-58-328; AD-202501
- Resource Relation:
- Other Information: Project title: METALLIC MATERIALS; Task title: TITANIUM METAL AND ALLOYS. Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
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