郭富安,曹零勇,赵凤,张华

• 1:山东南山铝业股份有限公司国家铝合金压力加工工程技术研究中心
• 2:北京南山航空材料研究院

摘要(Abstract)：

研究了预时效工艺对汽车车身用Al-Mg-Si-Cu铝合金板材组织及性能的影响。结果表明,合金板材固溶水淬后进行合适的预时效处理,能够显著降低自然时效的有害作用,合金板材的成形性能及烘烤硬化能力显著提高。预时效处理后,形成的原子团簇(或GP区)尺寸明显大于自然时效形成的原子团簇(或GP区),能够作为合金主要强化相β″的形核核心,有效促进烘烤条件下β″相的析出,从而显著提高板材烤漆硬化能力。合金板材经150℃/5 min预时效后,能够获得成形性能和烘烤硬化能力的良好组合。

关键词(KeyWords)： Al-Mg-Si-Cu铝合金;预时效;成形性能;烤漆硬化

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 郭富安,曹零勇,赵凤,张华

DOI: 10.13289/j.issn.1009-6264.2015.07.015

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