PRECIPITATION PHENOMENA IN COBALT-TANTALUM ALLOYS
Journal Article
·
· Trans. Met. Soc. AIME
OSTI ID:4187924
The precipitation phenomena occurring in cobalttantalum alloys were investigated in the temperature range from 500 to 1050 deg C by correlating the results of metallographic, X-ray, micro- and macrohardness, and electrical resistivity studies. The property changes were found to depend on general precipitation and lamellar precipitation. Two new intermetallic phases, alpha Co/Ta, a metastable ordered face-centered-cubic compound, and a stable beta Co/ Ta phase of hexagonal structure were identified. The previcusly reported Co/sub 2/Ta phase was found to exist in two allotropic modifications, the hexagonal MgZn/ sub 3/-type and the cubic MgCu/sub 2/-type Laves phases. (auth)
- Research Organization:
- Union Carbide Metals Co., Niagara Falls, N.Y.
- NSA Number:
- NSA-14-005623
- OSTI ID:
- 4187924
- Journal Information:
- Trans. Met. Soc. AIME, Journal Name: Trans. Met. Soc. AIME Vol. Vol: 215
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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