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Abstract:
本发明关于一种高强耐蚀铝合金挤压型材及其制备方法,涉及有色金属技术领域。包括如下质量百分比的原料:Mg1.0~1.2%,Si1.4~1.7%,Mn0.4~1.0%,Cu0.15~0.4%,Zn0.1~0.5%,Er0.1%,Zr0.1~0.5%,Fe0~0.2%,其余为Al。本发明型材通过添加Er和Zr元素和改变Mg、Si含量以及选取最优固溶时效工艺显著提升了合金的强度并保证了剥落腐蚀性能,通过控制Mg2Si析出相的密度降低了晶界析出相对腐蚀性能的影响,实现热挤压板材强度和腐蚀性能双提升。
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Patent Info :
Type: 发明申请
Patent No.: CN202311837788.7
Filing Date: 2023-12-28
Publication Date: 2024-03-22
Pub. No.: CN117737520A
Applicants: 北京工业大学
Legal Status: 实质审查
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