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:
Jul. 15, 1997
Filed:
Nov. 15, 1993
Applicant:
Inventors:
Kyoichi Sasaki, Numazu, JP;
Masaki Shimada, Numazu, JP;
Assignee:
Toshiba Kikai Kabushiki Kaisha, Tokyo-to, JP;
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148512 ; 148516 ; 148524 ; 148525 ;
Abstract
Disclosed is a process for the preparation of an alloy having excellent corrosion resistance and wear resistance, which comprises subjecting a powdery mixture comprising a powder of at least one matrix metal selected from the group consisting of Fe-based alloys, Co-based alloys and Ni-based alloys and a vanadium carbide powder to a heat treatment, wherein by repeating fusion and re-fusion by a heat treatment using a heat source having a high energy density, a phase of uniform and fine vanadium carbide particles is recrystallized and/or redeposited in the matrix metal phase.