搅拌摩擦加工研究进展

搅拌摩擦加工(FSP),是一种新型的材料塑性变形加工方法,它是在搅拌摩擦焊(FSW)的基础上提出的。从发明至今,研究者已经成功将FSP用于铸造金属微观组织细化、超塑性材料的制备、材料表面改性以及各种复合材料的制备中。搅拌摩擦加工工艺与搅拌摩擦焊接工艺基本相同,工艺参数对搅拌摩擦加工材料质量有很大的影响。综述了搅拌摩擦加工近年来的研究进展,主要包括不添加增强相的FSP和添加增强相的FSP两大类。其中不添加增强相的FSP主要有铸造金属微观组织细化和超塑性材料制备,添加增强相的FSP主要有材料表面改性和复合材料制备。搅拌摩擦加工制备复合材料根据添加相是否与基体反应生成增强相,又分为非原位合成法制备复合材料与原位合成法制备复合材料。文中对以上内容分别进行了总结与评述,最后指出了FSP今后发展应用的方向。

Research Progress in Friction Stir Processing

Friction stir processing (FSP) is a new type of plastic deformation processing method and proposed on the basis of Friction Stir Welding (FSW). Since it was invented, researchers have succeeded in applying FSP to refine microstructure of casting metal, prepare superplastic material, modify surface characteristic of materials, and prepare composite materials. The processes of friction stir processing and friction stir welding are basically the same and the process parameters on the friction stir processing has a great impact on material quality. The summarized research progress of friction stir processing in recent years mainly includes two categories: FSP without reinforcing phase and FSP with reinforcing phase. FSP without reinforcing phase mainly consists of casting microstructure refinement and superplastic material preparation. FSP with reinforce phase mainly includes surface modification of materials and preparation of composite materials. Friction stir processing of composite materials is divided into non-situ synthesis of composite materials and in-situ synthesis of composite materials according to whether the added phase reacts with the substrate to produce enhanced phase,. The paper summarizes and comments on the above contents respectively, and finally points out the direction of future development and application of FSP.