稀土元素对铝合金钎料性能影响研究进展-中国材料进展

文章信息/Info

Title:: Research Progress on the Effect of Rare Earth Elements on the Properties of Aluminum Alloy Solders

作者:: 张睿华; 杨军; 赵泳林; 李阳; 李函; 韩冰源; 1. 江苏理工学院汽车与交通工程学院，江苏常州 213001 2. 湖北汽车工业学院设计学院，湖北十堰 442002 3. 汽车动力传动与电子控制湖北省重点实验室，湖北十堰 442002 4. 湖北汽车工业学院汽车工程学院，湖北十堰 442002

Author(s):: ZHANG Ruihua; YANG Jun; ZHAO Yonglin; LI Yang; LI Han; HAN Bingyuan; 1. School of Automotive and Traffic Engineering, Jiangsu University of Technology, Changzhou 213001, China 2. School of Design, Hubei University of Automotive Technology, Shiyan 442002, China et al.

Keywords:: rare earth elements; aluminum alloy solder; microstructure; mechanical property; grain refinement mechanism

摘要:: 近年来，钎焊技术的广泛应用带动了钎料的快速发展。Al-Si系钎料具有良好的流动性和润湿性，但其熔化温度高、强度偏低、焊接裂纹敏感性高且具有液相腐蚀倾向，这些缺点制约了Al-Si钎料的应用范围的扩展。为了细化Al-Si系列钎料的合金组织，可通过添加稀土元素对其进行变质处理，使焊缝在钎焊后获得优良的性能。基于此，综述了Ce，Y，Er和Yb等多种稀土元素对铝合金钎料显微组织及焊后力学性能的影响，并对其细化晶粒机理进行分析。结合国内外对铝合金钎料的研究进展，对目前铝合金钎料在开发过程中组织细化的问题以及未来钎料的发展趋势进行了展望。

Abstract:: In recent years, the wide application of brazing technology has led to the rapid development of brazing solders. Al-Si brazing solders has some advantages such as good fluidity and wettability, at the same time, it also has some disadvantages, such as high melting temperature, low strength, high weld crack sensitivity and liquid phase corrosion tendency, which restrict expansion of the application range of Al-Si brazing solders. In order to refine the alloy structure of Al-Si brazing solders, it can be modified by adding rare earth elements, so that the weld obtained excellent performance after brazing. Based on this, this paper reviews the effects of Ce, Y, Er, Yb and other rare earth elements on the microstructure and mechanical properties of aluminum alloy solders after brazing, and analyzes the mechanism of grain refinement. Based on the research progress of aluminum alloy solder at home and abroad, the problem of microstructure refinement in the development process of aluminum alloy solder is pointed out, and the future development of solder is prospected.