Abstract
To study the mechanical response of H96 brass, the quasi-static and dynamic compression experiments were performed by the universal-testing machine and the split Hopkinson pressure bar system. The selected temperature range was 293 K ∼ 873 K, the selected strain-rate range was 0.001/s ∼ 6000/s and the strains were up to 0.6. It was shown that, this alloy has remarkable strain hardening character, and this alloy is sensitive to strain-rate and temperature. In addition, the Dynamic Strain Aging phenomenon of this alloy occurs under the condition of 473 K and 0.001/s. According to the testing results and the thermal-activation dislocation mechanism, a plastic flow constitutive model was brought forth. This constitutive model can predict and describe the plastic flow behavior of H96 brass alloy in a wide range of temperature and strain rate.
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