Copper base alloys possessing improved processability

Details Copper base alloys possessing improved processability Copper base alloys possessing improved processability

1977-08-25

1978-09-26

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

148 115C, 148 127C, C22C 902, C22D 108

Patent

active

041166868

ABSTRACT:
A copper base alloy is disclosed which exhibits improved resistance to crack propagation during hot processing as well as good mechanical properties. The alloy comprises from about 4.0 to about 11.0% tin, from about 0.01 to about 0.3% phosphorus, from about 1.0 to about 5.0% of a material selected from the group consisting of iron and a mixture of iron and cobalt, up to about 0.4% chromium, balance essentially copper. The alloy of the present invention possesses a substantially non-dendritic grain structure in the cast condition which contributes to said resistance to crack propagation.

REFERENCES:
patent: 2059557 (1936-11-01), Corson
patent: 2210670 (1940-08-01), Kelly
patent: 3923558 (1975-12-01), Shapiro

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