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本文研究了铜铝装饰合金(冷拔状态)的固态相变及固态相变中的组织变化。阐明了合金元素Co和Ni在该合金中所起的作用。对热膨胀曲线在两相区内的反常峰给予解释。用膨胀法和金相法作旁证定出铜铝装饰合金及铝青铜合金的再结晶温度。
In this paper, the solid state transformation of Cu-Al decorative alloy (cold drawn state) and the microstructure change during solid state transformation were studied. Clarified the role of alloying elements Co and Ni in this alloy. Anomalous peaks of the thermal expansion curve in the two-phase region are explained. With the expansion method and the metallographic method as evidence to determine copper and aluminum decorative alloy and aluminum bronze recrystallization temperature.