袁婷,涂益友,张敏达,蒋建清

• 1:常熟理工学院化学与材料工程学院
• 2:东南大学材料科学与工程学院
• 3:常铝铝业股份有限公司

摘要(Abstract)：

借助于光学显微镜、扫描电镜和EBSD等手段,研究了芯材再结晶组织对复合钎焊铝箔抗下垂性能的影响。结果表明,在钎焊过程中皮材发生熔化,低熔点Al-Si共晶相从皮材向芯材渗入,降低了扩散层的熔点,使得在高温中支撑材料强度的芯材厚度降低,不利于抗下垂性能。而存在较小析出相的试样由于析出相钉扎亚晶界和位错运动,阻碍再结晶,最终形成沿轧向分布的长条状再结晶组织,Al-Si相渗入深度较小,材料的抗下垂性较好,且钎焊后的强度和伸长率并未有明显的降低。

关键词(KeyWords)： 复合钎焊铝箔;Al-Si共晶相;抗下垂性

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 袁婷,涂益友,张敏达,蒋建清

DOI: 10.13289/j.issn.1009-6264.2011.09.028

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