公开(公告)号：US06926780B2

公开(公告)日：2005-08-09

申请号：US10202241

申请日：2002-07-23

申请人： Tianying Xiong ,  Tiefan Li ,  Jie Wu ,  Huazi Jin ,  Minjie Wu ,  Jinsheng Chen ,  Ming Li

发明人： Tianying Xiong ,  Tiefan Li ,  Jie Wu ,  Huazi Jin ,  Minjie Wu ,  Jinsheng Chen ,  Ming Li

IPC分类号： C21D7/06 ,  C23C24/04 ,  C21D1/74

CPC分类号： C21D7/06 ,  C21D2201/03 ,  C23C24/04

摘要： The present invention relates to a method of surface treatment of metallic materials, more particularly, to a method of the surface self-nanocrystallization of metallic materials by the bombarding of supersonic fine particles. The method comprises the step of bombarding the surface of metallic substrate material with fine particles at supersonic speed of 300-1200 m/s carried by a compressed gas, which is ejected from a nozzle. The present method can be used for the surface self-nanocrystallization of metallic parts with a complicated structure or a large area, and the nanometer layer obtained is homogeneous. In addition, it can be operated in a simple way with low energy consumption, low cost, high efficiency of production and high surface nanocrystallization rate of from 1 cm2 to 10 cm2/min.

摘要翻译： 金属材料的表面处理方法技术领域本发明涉及一种金属材料的表面处理方法，更具体地说，涉及通过轰击超音速微粒而使金属材料的表面自纳晶化的方法。 该方法包括用喷射器喷射的压缩气体携带的300-1200m / s超声速度的细颗粒轰击金属基材表面的步骤。 本方法可以用于具有复杂结构或大面积的金属部件的表面自纳米结构，并且所获得的纳米层是均匀的。 另外，能够以低能耗，低成本，高效率的生产和1cm 2〜10cm 2以上的高表面纳米化速度的简单方式进行操作 > / min。