石墨与金属焊接技术研究现状

Research status of joining between graphite and metals

石墨与金属焊接是实现材料性能优越化的有效途径。从介绍石墨与金属焊接技术需求和难点出发,重点综述了石墨与铝合金、铜合金以及其他合金钎焊、扩散焊连接领域的研究进展,总结了钎焊、扩散焊技术实现石墨与金属有效冶金结合的机理,分析了活性钎料在钎焊过程中的作用以及润湿性研究成果,简单概括了石墨与金属的连接性能,最后指出了当前焊接存在的问题、钎焊和扩散焊技术未来的发展方向,为进一步深入研究及工程应用提供理论基础及技术支撑。

Joining of graphite to metal is an effective way to achieve superior material performance.Firstly,technical requirements and difficulties of graphite and metal joining was introduced.Following that,research progresses in the brazing and diffusion welding of graphite and aluminum alloys,copper alloys and other alloys were summarized.The mechanism of achieving effective metallurgical bonding between graphite and metal through brazing and diffusion welding,especially,the role of active brazing materials in the brazing process and the related wettability were deeply explored.Furthermore,joining properties of graphite to metal were briefly introduced.Finally,current problems and future development direction of brazing and diffusion welding technology were presented,which provided theoretical basis and technical support for further in-depth research and engineering applications.