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针对ZL203-S铸造Al-Cu合金抗拉强度和伸长率相对较低的特点,在Al-Cu合金平衡图的基础上,通过金相组织研究及热处理工艺实验,找出了该合金的强化规律以及影响强化的主要因素。结果表明,强化处理后铸造铝铜合金的抗拉强度和伸长率均得到了较大幅度的提高,大大拓展了其应用范围。
Aiming at the relatively low tensile strength and elongation of Al-Cu alloy cast by ZL203-S, based on the equilibrium diagram of Al-Cu alloy, the strengthening law of the alloy was found out through the microstructure research and heat treatment process experiment As well as the main factors that affect strengthening. The results show that the tensile strength and elongation of the cast aluminum-copper alloy after the strengthening treatment have been greatly improved, greatly expanding the scope of its application.