搅拌摩擦加工研究进展及前景展望

Research Progress and Prospect of Friction Stir Processing

摘要:

对搅拌摩擦加工工艺、加工对性能的影响及其在制备复合材料及合金等方面的研究做了比较详尽的综述，并指出搅拌摩擦加工研究进程中存在的问题、发展前景及今后的研究方向。认为对非正常晶粒长大的影响因素及其产生机制还有待深入研究。熔化焊结合搅拌摩擦加工能满足钛合金等高强材料焊接的需要。用搅拌摩擦加工制备纳米相增强金属基复合材料和金属间化合物将有良好的应用前景。为解决材料微观结构不均匀现象，基于搅拌摩擦加工基本思想，开发新的适合材料制备的新工艺将是该技术从实验室成功走向实际应用的瓶颈

Abstract:

Friction stir processing (FSP) was summarized in detail. Its effect on properties of materials and the research on preparation of composites and alloys were also introduced. In addition, the problems of FSP research, the prospect and the future development were pointed out. The influencing factors and formation mechanism of the abnormal grain growth need further studies. FSP combined with melt welding can meet the requirement of welding of high strength materials such as titanium alloys. There will be a good application future for FSP to prepare nano-particles enforced metal matrix composites (MMCs) and intermetallic composites (IMCs). An inventive technique to fabricate materials with homogeneous microstructure by adopting the concepts of FSP is pivotal for its applications