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对5182铝合金冷轧板材进行了不同温度退火处理及退火后的单向拉伸试验、杯突试验以及微观组织表征.结果表明:随着退火温度的升高,屈服强度和抗拉强度逐渐降低,在300~325℃范围内,分别由原来的240MPa、379MPa快速降低到114MPa、258MPa;杯突值由原来的5.77 mm提高到了8.75 mm;同时,应变硬化指数也大幅度提高,当退火温度达到325℃,并保温30min,冷轧板材已经发生了完全再结晶.

参考文献

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