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:
Apr. 10, 1990
Filed:
Aug. 15, 1988
Applicant:
Inventor:
Gerhard E Welsch, Cleveland Hts., OH (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
C21D / ; C22F / ;
U.S. Cl.
CPC ...
148-4 ; 148900 ; 428607 ; 427111 ; 427 38 ;
Abstract
A method of forming internal high temperature barriers in structural metals is provided. The barriers prevent movement of boundaries and dislocations inside the structural metal, and make strutural metals creep resistant at high homologous temperatures. The method comprises providing a first layer of strutural metal, implanting ions into this layer, and layering a second layer of structural metal on the ion-implanted first layer to form a laminated product. The steps of implanting and layering can be repeated an arbitrary number of times.