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.

Date of Patent:
Sep. 30, 2014

Filed:

Jul. 19, 2010
Applicants:

Thomas Lundin Christiansen, Frederikssund, DK;

Thomas Strabo Hummelshøj, Frederiksberg, DK;

Marcel A. J. Somers, Billund, DK;

Inventors:

Thomas Lundin Christiansen, Frederikssund, DK;

Thomas Strabo Hummelshøj, Frederiksberg, DK;

Marcel A. J. Somers, Billund, DK;

Assignees:

Expanite A/S, Kongens Lyngby, DK;

Danmarks Tekniske Universitet—DTV, Kongens Lyngby, DK;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23C 8/28 (2006.01); C23C 8/24 (2006.01); C23C 8/26 (2006.01); C23C 8/20 (2006.01); C23C 8/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of activating an article of passive ferrous or non-ferrous metal by heating at least one compound containing nitrogen and carbon, wherein the article is treated with gaseous species derived from the compound. The activated article can be subsequently carburized, nitrided or nitrocarburized in shorter time at lower temperature and resulting superior mechanical properties compared with non-activated articles and even articles of stainless steel, nickel alloy, cobalt alloy or titanium based material can be carburized, nitrided or nitrocarburized.


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