摘要
综述了搅拌摩擦加工(FSP)原理、工艺特点及其在铝合金改性、铝基复合材料制备中的研究现状,分析了该技术的实用前景、发展中存在的突出问题及今后的研究方向。FSP能满足高性能铝基材料的发展需求,尤其是对纳米铝基复合材料的应用前景诱人。鉴于FSP后材料显微组织的不均匀现象,亟待深入开展细化组织流变机理、动态再结晶机制等基础研究。依据其加工原理,基于铝基复合材料的特性开发适用新工艺,是该技术凸显巨大应用潜力的关键所在。
The elementary principle and process features of friction stir processing （FSP） were introduced, which was a novel process to modify metallic microstructure or fabricate metal-matrix composite. The applications of FSP in A1 and its alloys were summarized in detail. The practical prospect, outstanding problems and the future research directions were pointed out. The novel process can meet the requirement of high-performance A1 materials, and has become an increasingly promising technology in nano-particles enforced Al-matrix composite. At present, the fundamental theories, such as ultrafine-grained （UFG） formation and dynamic recrystallization during FSP need further studies. Base on the principle of FSP and the characteristics of AI material, an inventive technique to achieve homogeneous UFG microstructure is pivotal for its great applications on A1 industry.
出处
《热加工工艺》
CSCD
北大核心
2013年第17期5-8,12,共5页
Hot Working Technology
基金
国家自然科学基金项目(51141002)
关键词
搅拌摩擦加工
铝合金
微观结构改性
组织超细化
铝基复合材料
fi＇iction stir processing
A1 alloy
microstructure modification
grain refinement
Al-matrix composite
