Titanium alloy with high internal friction and method of heat-tr

Details Titanium alloy with high internal friction and method of heat-tr Titanium alloy with high internal friction and method of heat-tr

1977-04-26

1979-01-16

Dean, R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

148133, C22C 1400, C21D 100

Patent

active

041347587

ABSTRACT:
A titanium alloy having a high degree of internal friction and suitable for rotating blades of turbomachines is composed of 5.5 - 6.75% Al, 1 - 5% V, 1 - 5% Mo, V plus Mo being greater than or equal to 5%, and the balance Ti and usual impurities, all by weight. A method of heat-treating the alloy comprises maintaining the same at a temperature not lower than 125.degree. C below its .beta. transformation point for a predetermined period of time and then rapidly cooling the alloy.

REFERENCES:
patent: 2754204 (1956-07-01), Jaffee et al.
patent: 2804409 (1957-08-01), Kessler et al.
patent: 2918367 (1959-12-01), Crossley et al.
Mechanical Metallurgy, Deiter, Jr., McGraw-Hill Book Co., N.Y., 1961, pp. 232-233.

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