Metal treatment – Process of modifying or maintaining internal physical... – Treating consolidated metal powder – per se
Patent
1991-04-09
1993-03-30
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Treating consolidated metal powder, per se
148522, 148536, 148553, 148554, 148679, 148685, 148686, B22F 100
Patent
active
051980444
ABSTRACT:
Process for the preparation of a substantially homogeneous alpha phase copper-nickel-tin alloy comprising copper and 4-18% by weight of nickel and 3-13% by weight of tin, comprising atomizing a molten alloy having the before-indicated composition and collecting atomized particles on a collecting surface in such a way that solid collected material is obtained having a temperature, of at least 700.degree. C., followed by quick cooling of the collected material to a temperature below 300.degree. C.
The alloy thus obtained may be hardened, preferably after shaping, by spinodal decomposition.
REFERENCES:
patent: 3937638 (1976-02-01), Plewes
patent: 4373970 (1983-02-01), Scorey et al.
patent: 4525325 (1985-06-01), Livak
Int. J. of Powder Metallurgy, 1986, vol. 22, No. 1, pp. 53-58.
Colijn Jeroen
Krahmer Piet
Mol Gerrit J. H.
Steele Allan D.
Sheehan John P.
Shell Research Limited
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