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表面纳米化技术能通过往复加载使钢铁材料表面发生强烈塑性变形而实现纳米化,在表面形成纳米-微米梯度结构。这种独特的结构既能为研究形变诱发的纳米化机理和宽尺寸范围内结构与性能关系提供理想样品,又能显著地提高钢铁材料整体的综合性能和服役行为,因此可望在工业上取得实用。表面纳米化因丰富的学术和应用价值得到国内外广泛关注,并已成为纳米材料研究的一个重要方向,因此从制备、结构、性能和化学处理等方面介绍表面纳米化研究工作已取得的进展。
Surface nanocrystallization can achieve nanocrystallization through the intense plastic deformation of the steel material surface by reciprocating loading, forming a nano-micrometer gradient structure on the surface. This unique structure is expected to be commercially available both for the purpose of studying the mechanism of deformation induced nanocrystallization and for providing an ideal sample of structural and property relationships over a wide range of dimensions, as well as significantly improving the overall performance and serviceability of the overall steel material practical. Surface nanomaterials have drawn extensive attention both at home and abroad due to their rich academic and application value. Nanomaterials have become an important direction in the research of nanomaterials. Therefore, progress in surface nanomaterials research has been introduced from the aspects of preparation, structure, properties and chemical treatment.