Effect of Ageing Condition on Spring Properties of Beryllium Copper.
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概要
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Beryllium Copper is a well known precipitation hardening alloy that is widely used as a spring material in a variety of applications including electric, electronic, and electromechanical components.In order to realize the optimum properties for a given application, proper heat treatment is necessary after forming. Age hardening at 315°C for 2 hours provides maximum strength and is well suited for most applications.Other applications may call for a different heat treatment. Maximum spring bend limit and fatigue life are achieved below 315°C, while electrical conductivity and stress relaxation are increased above 315°C.This paper reports the effect of various ageing treatments on Beryllium Copper in terms of tensile properties, electrical conductivity, fatigue life, stress relaxation, and spring characteristics such as spring bend limit.
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