王兴国,孙建波

• 1:景德镇陶瓷学院机械电子工程学院
• 2:佳木斯大学材料科学与工程学院

摘要(Abstract)：

研究了铝合金复层铸坯的均质化退火温度和退火时间对铸坯微观组织和力学性能的影响。微观组织分析结果表明:退火时间为7 h,退火温度为490℃时4004合金一侧的共晶硅形态由板片状变成细小的球状和短棒状,大大降低了变形抗力。当退火温度为490℃,退火时间从7 h延长到14 h时对微观组织的影响不大。退火时间为7 h,退火温度分别为490℃和510℃时,4004合金一侧的共晶硅也比铸态下细小,从而使变形抗力降低。力学性能的检测结果表明:经均质化退火后的4004合金一侧的布氏硬度显著降低,3003合金一侧的硬度值略有上升。根据抗拉强度与硬度的关系,给出了复合界面结合强度的估算公式。

关键词(KeyWords)： 均质化退火;复层铝合金;微观组织;界面;结合强度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51305184);; 江西省自然科学基金(20122BAB21600)

作者(Author): 王兴国,孙建波

DOI: 10.13289/j.issn.1009-6264.2015.09.012

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