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材料工程  2016, Vol. 44 Issue (11): 39-44    DOI: 10.11868/j.issn.1001-4381.2016.11.006
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
中温自反应钎焊铝蜂窝芯耐高温老化性能分析
赵欢1, 程方杰1,2, 齐书梅1, 肖兵1, 姚俊峰1
1. 天津大学 材料科学与工程学院, 天津 300072;
2. 天津大学 现代连接技术天津市重点实验室, 天津 300072
Analysis on High Temperature Aging Property of Self-brazing Aluminum Honeycomb Core at Middle Temperature
ZHAO Huan1, CHENG Fang-jie1,2, QI Shu-mei1, XIAO Bing1, YAO Jun-feng1
1. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China;
2. Tianjin Key Laboratory of Advanced Joining Technology, Tianjin University, Tianjin 300072, China
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摘要 采用微小力学测试系统对经过高温老化的中温自反应精密钎焊铝蜂窝芯接头进行拉剪性能测试,并利用扫描电子显微镜及能谱仪对其进行显微组织形貌观察和成分分析,研究接头组织及成分变化与其耐高温老化性能的关系。结果表明:利用1060铝箔和铝合金复合钎焊板所制备的铝蜂窝芯在200℃高温老化12,24,36h后拉剪强度与未老化时相比均无明显下降,且接头的薄弱部分为靠近钎焊接头的母材部分。铝蜂窝芯接头组织形貌及成分分析显示,高温老化对钎缝组织中金属Zn,Sn含量影响不大且无新的化合物相形成;钎缝组织及成分不发生明显变化是蜂窝芯接头耐高温老化的主要原因。
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赵欢
程方杰
齐书梅
肖兵
姚俊峰
关键词 中温自反应钎焊铝蜂窝芯高温老化钎缝组织    
Abstract:Tension-shear test was carried out on middle temperature self-brazing aluminum honeycomb cores after high temperature aging by micro mechanical test system, and the microstructure and component of the joints were observed and analyzed using scanning electron microscopy and energy dispersive spectroscopy to study the relationship between brazing seam microstructure, component and high temperature aging properties. Results show that the tensile-shear strength of aluminum honeycomb core joints brazed by 1060 aluminum foil and aluminum composite brazing plate after high temperature aging(200℃/12h, 200℃/24h, 200℃/36h) is similar to that of as-welded joints, and the weak part of the joint is the base metal which is near the brazing joint. The observation and analysis of the aluminum honeycomb core microstructure and component show that the component of Zn, Sn at brazing seam is not much affected and no compound phase formed after high temperature aging; therefore, the main reason for good high temperature aging performance of self-brazing aluminum honeycomb core is that no obvious change of brazing seam microstructure and component occurs.
Key wordsmiddle temperature self-brazing    aluminum honeycomb core    high temperature aging    brazing seam microstructure
收稿日期: 2015-09-06      出版日期: 2016-11-22
中图分类号:  TG454  
通讯作者: 程方杰(1971-),男,博士,教授,主要研究方向为先进连接工艺方法,联系地址:天津市津南区海河教育园雅观路135号天津大学材料科学与工程学院(300350),E-mail:chfj@tju.edu.cn     E-mail: chfj@tju.edu.cn
引用本文:   
赵欢, 程方杰, 齐书梅, 肖兵, 姚俊峰. 中温自反应钎焊铝蜂窝芯耐高温老化性能分析[J]. 材料工程, 2016, 44(11): 39-44.
ZHAO Huan, CHENG Fang-jie, QI Shu-mei, XIAO Bing, YAO Jun-feng. Analysis on High Temperature Aging Property of Self-brazing Aluminum Honeycomb Core at Middle Temperature. Journal of Materials Engineering, 2016, 44(11): 39-44.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.11.006      或      http://jme.biam.ac.cn/CN/Y2016/V44/I11/39
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