The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2005
Filed:
Jul. 23, 2002
Tianying Xiong, Shenyang, CN;
Tiefan LI, Shenyang, CN;
Jie Wu, Shenyang, CN;
Huazi Jin, Shenyang, CN;
Minjie Wu, Shenyang, CN;
Jinsheng Chen, Shenyang, CN;
Ming LI, Shenyang, CN;
Tianying Xiong, Shenyang, CN;
Tiefan Li, Shenyang, CN;
Jie Wu, Shenyang, CN;
Huazi Jin, Shenyang, CN;
Minjie Wu, Shenyang, CN;
Jinsheng Chen, Shenyang, CN;
Ming Li, Shenyang, CN;
Institute of Metal Research, , CN;
Abstract
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 cmto 10 cm/min.