搅拌摩擦焊用钨铼合金的研究进展

搅拌摩擦焊接技术是一种环保、低成本的固相连接技术，已经在航空航天、轨道交通和新能源汽车等领域得到广泛应用。对于高熔点合金材料如钛合金和不锈钢的搅拌摩擦焊接而言，搅拌头材料成了主要制约因素。钨铼（W-Re）合金凭借其高熔点、高硬度和强抗腐蚀性等优点，已成为研究和应用最热的搅拌摩擦焊接高熔点合金的搅拌头材料。本文综述了近年来在搅拌摩擦焊工艺中以W-Re合金作为搅拌头材料的制备方法、复合强化技术和应用场景的研究进展。此外，还展望了拓宽W-Re合金在搅拌摩擦焊领域应用的前景，包括降低W-Re合金的生产成本和提高其服役寿命等方面，旨在推动W-Re合金搅拌头材料在搅拌摩擦焊领域的进一步应用和发展。

Research Progress on Tungsten-Rhenium Alloy for Friction Stir Welding

Friction Stir Welding (FSW), as an environmentally friendly, cost-effective solid-state joining technique, has been widely applied in the fields of aerospace, rail transportation and new energy vehicles. However, when it comes to the FSW of high-melting-point alloy materials like titanium alloys and stainless steels, the choice of the tool material becomes a major limiting factor. Tungsten-rhenium (W-Re) alloy, with its high melting point, high hardness and corrosion resistance, has emerged as the most promising tool material for FSW of high-melting-point alloys. This review article summarizes the research progress in the preparation methods, composite reinforcement techniques, and application scenarios of W-Re alloy tool materials for FSW in recent years. Additionally, it provides an outlook on expanding the applications of W-Re alloy in the field of FSW, including efforts to reduce production costs and enhance its service life. The aim is to promote further application and development of W-Re alloy tool materials in the field of FSW.