Metal treatment – Compositions – Heat treating
Patent
1974-10-02
1976-06-15
Stallard, W.
Metal treatment
Compositions
Heat treating
751755, 148 115F, C22F 118
Patent
active
039635252
ABSTRACT:
A method of producing a hot-worked titanium product in which a minute quantity of a workability-enhancing agent is incorporated in the melting charge. The agent may be yttrium, a rare earth of atomic number 57 to 71, or combinations thereof, and may be in the form of the metal itself or a compound, such as the oxide. The agent has the effect of making bodies of the material more workable; that is, more drastic working is achieved without reheating of the material between hot-working steps, yet any significant surface-cracking is avoided in the product.
REFERENCES:
patent: 3070468 (1962-12-01), Grant
patent: 3074829 (1963-01-01), Novy et al.
patent: 3112196 (1963-11-01), Schier
patent: 3113991 (1963-12-01), Kleber
patent: 3378671 (1968-04-01), Harrison et al.
patent: 3379522 (1968-04-01), Vordahl
patent: 3622406 (1971-11-01), Vordahl
patent: 3679403 (1972-07-01), Bomberger et al.
Bomberger, Jr. Howard B.
Seagle Stanley R.
RMI Company
Stallard W.
Wood Walter P.
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