Process for forming a titanium base alloy with small grain size

Details Process for forming a titanium base alloy with small grain size Process for forming a titanium base alloy with small grain size

1985-07-08

1986-07-22

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder shape or size characteristics

419 26, 419 30, 75245, 148 115P, 148 115F, 1481261, 148133, 420417, B22F 100

Patent

active

046018743

ABSTRACT:
A process for forming a titanium base alloy comprises compacting a powder formed of particles of titanium or of a mother alloy thereof and of a dispersion of fine particles of a product curbing the growth of the grain size, in a proportion per volume which is less than that which would lead to the formation of a continuous layer of fine particles about the particles of titanium powder. Then the alloy is heat treated at a temperature higher than the point of transformation into phase .beta. and quenched. The product is typically selected among S, P, B, As, Se, Te, Y and the lanthanides.

REFERENCES:
patent: 3181947 (1965-05-01), Vordahl
patent: 4134758 (1979-01-01), Nagai et al.
patent: 4219357 (1980-08-01), Yolton et al.

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