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发明公开
CN106350716A 一种高强度外观件铝合金材料及其制备方法 有权

一种高强度外观件铝合金材料及其制备方法
摘要：
本发明涉及金属材料热处理技术领域，具体涉及一种高强度外观件铝合金材料及其制备方法，铝合金材料的化学成分由以下重量百分比的元素组成：Mg：0.75%-0.95%，Si：0.65%-0.75%，Mn≤0.28%，Cr≤0.15%，Ti：0.008%-0.012%，Fe≤0.12%，Zn≤0.10%，Cu≤0.55%，其余杂质元素单个≤0.05%，其余杂质元素总和≤0.15%，余量为Al；本发明的高强度外观件铝合金材料的抗拉强度和屈服强度高，断裂伸长率大，硬度高，延展性好，性价比高。
摘要（英）：

The invention relates to the technical field of heat treatment of metal materials, in particular to a high-strength exterior-part aluminum alloy material and a manufacturing method thereof. The aluminum alloy material is composed of chemical components including, by weight, 0.75%-0.95% of Mg, 0.65%-0.75% of Si, smaller than or equal to 0.28% of Mn, smaller than or equal to 0.15% of Cr, 0.008%-0.012% of Ti, smaller than or equal to 0.12% of Fe, smaller than or equal to 0.10% of Zn, smaller than or equal to 0.55% of Cu, the balance of impurity elements with individual being smaller than or equal to 0.05%, the balance of the impurity elements with total sum being smaller than or equal to 0.15%, and the balance of Al. The high-strength exterior-part aluminum alloy material is high in tensile strength and yield strength, high in elongation at break, high in rigidity, good in ductility and good in cost performance.

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