专利检索 ap:("NIPPON STEEL CORPORATION") AND inv:"TAKASHIMA, Kazuki, Tokyo Institute of Technology" 第 1 页

1.

发明公开
METHOD OF MANUFACTURING METAL PRODUCT HAVING NANO-CRYSTALLIZED SURFACE LAYER PART 有权
标题翻译：方法用于生产金属产品，部分NANO CRYSTALLIZED表层

公开(公告)号：EP1577401A1

公开(公告)日：2005-09-21

申请号：EP03772830.0

申请日：2003-11-17

申请人： NIPPON STEEL CORPORATION

发明人： ISHIKAWA, Tadashi, c/o Nippon Steel Corporation , NAKASHIMA, Kiyotaka, c/o Nippon Steel Corporation , NOSE, Tetsuro, c/o Nippon Steel Corporation , TOMINAGA, Tomonori, c/o Nippon Steel Corporation , HIGO, Yakichi, c/o Tokyo Institute of Technology , TAKASHIMA, Kazuki, Tokyo Institute of Technology

IPC分类号： C21D7/04 , C22C1/00

CPC分类号： C21D7/04 , C21D2201/03 , C22F3/00 , Y10T29/4578

摘要： A method of production of a metallic product with a nanocrystallized surface layer comprising subjecting a surface layer of a metallic product to ultrasonic impact treatment by one or more ultrasonic indenters vibrating in a plurality of directions, then subjecting the surface layer subjected to the ultrasonic impact treatment to heat treatment at a low temperature to cause precipitation of nanocrystals.