Tin base white metal bearing alloys

Details Tin base white metal bearing alloys Tin base white metal bearing alloys

1977-09-12

1979-04-24

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

C22C 1300

Patent

active

041509838

ABSTRACT:
Bearing alloys are made by adding chromium, one or more rare earth elements and/or magnesium to the conventional Sn-base white metal bearing alloys. The addition of such additives, even only with slow cooling after casting, enables the refining of cubic crystal grains and acicular crystal grains in the alloy structure, improving the bearing characteristics. The amounts to be added are specified to be within the ranges between 0.005% and 0.5% by weight for Cr, 0.001% and 1% by weight for rare earth element or elements and 0.001% and 1% by weight for Mg.

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