Abstract

1. Aging of beryllium bronze under conditions of a programmed increase in load during dynamic aging both in the original hardened condition and after low-temperature aging, leads to a marked increase in yield strength and elastic limit compared with similar characteristics after normal aging. The ultimate breaking strength, hardness, and ductility do not change. 2. The greatest increase in resistance to small amounts of plastic deformation as a result of aging under load is achieved in the region of small residual strains. 3. The increase in resistance to small amounts of plastic deformation after aging is apparently connected with oriented precipitation of γ′-phase particles and with an increase in their dispersivity, particularly after prior low-temperature aging.

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