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t2 chun tong /2024 lv he jin bao zha han jie jie tou jie mian jie gou ji xing neng
Author(s): 
Pages: 47-52
Year: Issue:  1
Journal: Materials Science and Technology

Keyword:  爆炸焊铜铝复合结构结合界面结合强度纳米压痕;
Abstract: 为研究铜铝异种金属爆炸焊接头界面形成机理,采用爆炸焊对T2纯铜和2024铝合金进行了焊接.通过光学显微镜、扫描电镜、X射线衍射、万能材料试验机和纳米压痕仪,对T2/2024复合板结合界面的显微组织、成分分布和力学性能进行了测试分析.结果表明:T2/2024合金爆炸复合板结合界面呈波状结合,结合界面主要由平直界面、波状界面和局部熔化层界面构成;靠近结合界面处,基体金属发生塑性变形,晶粒细化;反应层主要成分为AlCu和Al2Cu的混合物.复合板拉剪试验表明,T2/2024合金爆炸复合板平均结合强度为67 MPa,纳米压痕测试反应层平均硬度可达8 GPa.
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