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:
Sep. 13, 2005
Filed:
Oct. 26, 2001
Changmin Chun, Lawrenceville, NJ (US);
Trikur Anantharaman Ramanarayanan, Somerset, NJ (US);
James Dirickson Mumford, Long Valley, NJ (US);
Adnan Ozekcin, Bethlehem, PA (US);
Changmin Chun, Lawrenceville, NJ (US);
Trikur Anantharaman Ramanarayanan, Somerset, NJ (US);
James Dirickson Mumford, Long Valley, NJ (US);
Adnan Ozekcin, Bethlehem, PA (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
The present invention is directed to a process for producing pearlite from an iron containing article comprising the steps of, (a) heating an iron containing article comprising at least 50 wt % iron for a time and at a temperature sufficient to convert at least a portion of said iron from a ferritic structure to an austenitic structure, (b) exposing said austenitic structure, for a time sufficient and at a temperature of about 727 to about 900° C., to a carbon supersaturated environment to diffuse carbon into said austenitic structure and (c) cooling said iron containing article to form a continuous pearlite structure.