COPPER-BERYLLIUM ALLOY WITH HIGH STRENGTH

COPPER-BERYLLIUM ALLOY WITH HIGH STRENGTH

A process for producing a copper-beryllium alloy product. The process comprises preparing a base alloy having 0.15 wt %-4.0 wt % beryllium and having grains and an initial cross section area. The process further comprises cold working the base alloy to a percentage of cold reduction of area (CRA) gr...

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Bibliographische Detailangaben
Hauptverfasser: TYSON, MICHAEL F, HOYER, JEFFREY S, GRENSING, FRITZ, ZIEGLER, KARL R, GATEHOUSE, JOHN E, SCHMECK, BRUCE D, GEDEON, MICHAEL J
Format: Patent
Sprache:chi ; eng
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:A process for producing a copper-beryllium alloy product. The process comprises preparing a base alloy having 0.15 wt %-4.0 wt % beryllium and having grains and an initial cross section area. The process further comprises cold working the base alloy to a percentage of cold reduction of area (CRA) greater than 40%, based on the initial cross section area, and heat treating the cold worked alloy to produce the copper-beryllium alloy product. The grain structure of the copper-beryllium alloy product has an orientation angle of less than 45° when viewed along the direction of the cold working. The copper-beryllium alloy product demonstrates a fatigue strength of at least 385 MPa after 106 cycles of testing.