采用扫描电镜及能谱仪,透射电镜和比电容检测等方法研究了中间退火前后冷轧变形量对3003铝合金阴极箔第二相分布及比电容的影响.结果表明:随着最终冷变形程度的增加,位错密度增大,从而比电容值显著提高;最终冷轧变形量为90%时,比电容达到最大值,继续增加冷轧变形量,比电容值反而下降;但对于最终冷轧变形量95%的箔材,由于中间退火前冷轧变形量较低,使得退火过程中析出的弥散第二相数目减少,最终导致成品箔中的腐蚀位置减少,比电容降低.
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