利用等转变量方法和恒速升温时效过程中的电阻实验研究了NZ30K镁合金的析出动力学,获得了动力学模型的激活能Eαr和修正指前因子Aαr,可用于准确描述不同时效条件下强化相的析出过程.NZ30K镁合金欠时效阶段和峰时效的力学性能显示,在180～250℃范围内峰时效屈服强度一致,约为150MPa.通过最小二乘法确定了NZ30K镁合金180～250℃范围内时效时析出强化模型参数C,约为93MPa,实验数据和模型预测数据一致,证明该模型能应用于NZ30K镁合金欠时效和峰时效条件下屈服强度的预测.
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