Properties improvement and microstructure changes during thermomechanical treatment in sintered Cu–Au alloy
2014
Abstract The changes in hardness, microhardness, electrical conductivity and microstructure of the sintered Cu–4%Au (mole fraction) alloy during thermomechanical treatment were studied. Following the primary strain hardening, an annealing of rolled alloy in the temperature range of 60–350 °C provided additional strengthening due to the anneal hardening effect. An increase in properties took place in two stages, and the best combination of properties was achieved in the alloy pre-rolled with 40% reduction after annealing at 260 °C. Significant microstructural changes followed the changes of properties in the course of the thermomechanical treatment.
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