| 7075铝合金热变形连接接头的组织与性能 |
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| 引用本文： | 江海洋,孙明月,吴铭方,乔岩欣. 7075铝合金热变形连接接头的组织与性能[J]. 金属热处理, 2020, 45(2): 46-50. DOI: 10.13251/j.issn.0254-6051.2020.02.009 |
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| 作者姓名： | 江海洋 孙明月 吴铭方 乔岩欣 |
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| 作者单位： | 1. 江苏科技大学 冶金与材料工程学院, 江苏 张家港 215600;2. 中国科学院金属研究所 沈阳材料科学国家研究中心, 辽宁 沈阳 110016;3. 江苏科技大学 材料科学与工程学院, 江苏 镇江 212003 |
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| 摘 要： | 应用Gleeble-3500热模拟机对7075铝合金进行了热变形连接试验,利用金相显微镜和扫描电镜对不同温度和保温时间的接头界面组织进行了观察和分析,并对接头进行了拉伸性能测试。结果表明:当连接温度为460 ℃,保温时间为24 h时,对界面进行EDS分析,界面处已经没有氧化物的偏聚,此时的力学性能最佳,抗拉强度达到444 MPa,屈服强度为265 MPa。
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| 关 键 词： | 热变形连接 变形温度 保温时间 显微组织 力学性能 |
| 收稿时间： | 2019-09-01 |
Microstructure and properties of 7075 aluminum alloy hot compress bonding joint |
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| Jiang Haiyang,Sun Mingyue,Wu Mingfang,Qiao Yanxin. Microstructure and properties of 7075 aluminum alloy hot compress bonding joint[J]. Heat Treatment of Metals, 2020, 45(2): 46-50. DOI: 10.13251/j.issn.0254-6051.2020.02.009 |
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| Authors: | Jiang Haiyang Sun Mingyue Wu Mingfang Qiao Yanxin |
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| Affiliation: | 1. School of Metallurgy and Materials Engineering, Jiangsu University of Science and Technology, Zhangjiagang Jiangsu 215600, China;2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang Liaoning 110016, China;3. School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China |
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| Abstract: | Hot compress bonding test of the 7075 aluminum alloy was carried out by a Gleeble-3500 thermal simulator. The joint interface microstructure under different temperatures and holding time was observed and analyzed by means of metallographic microscope and scanning electron microscope,and the tensile properties of the joint were tested. The results show that when the bonding temperature is 460 ℃ and the holding time is 24 h,no segregation of oxide at the interface is found by EDS analysis,and the mechanical properties are the best,the tensile strength reaches 444 MPa and the yield strength is 265 MPa. |
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| Keywords: | hot compress bonding deformation temperature holding time microstructure mechanical properties |
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