Production of homogeneous alloy articles from superplastic alloy

Details Production of homogeneous alloy articles from superplastic alloy Production of homogeneous alloy articles from superplastic alloy

1973-06-06

1976-04-27

Padgett, Benjamin R.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75211, 75214, 75225, 75226, 148126, B22F 312

Patent

active

039532054

ABSTRACT:
The constitutionally complex alloys, particularly those exhibiting good high temperature strength and prone to the development of unacceptable heterogeneity in conventional casting operations, are produced by consolidation of a cold-worked particulate material which is sized to preclude the development thereon, in the time span at temperature used in consolidation, of undesirable surface phases such as carbides which inhibit particulate bonding.

REFERENCES:
patent: 3318683 (1967-05-01), Foster, Jr. et al.
patent: 3671230 (1972-06-01), Smythe et al.
patent: 3702791 (1972-11-01), Freche et al.
patent: 3728111 (1973-04-01), Stromblad et al.
patent: 3775101 (1973-11-01), Freche et al.
Bufferd, A. S. Complex Superalloy shapes, in Pow. Met. for High Preformance Applications, Syracuse U. Press, 1972, p. 304.
Sands et al., Powder Metallurgy, George Newnes Ltd., London, 1966, pp. 24-25.
Bufferd, A. S. et al. Application Outlook for P/M Sintered parts, in Met. Progress, Apr. 1971 pp. 69-71.

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