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:
Jun. 11, 2019

Filed:

Oct. 18, 2016
Applicant:

Northwestern University, Evanston, IL (US);

Inventors:

Cameron T. Gross, Evanston, IL (US);

Yao Du, Evanston, IL (US);

Xu Zhang, Evanston, IL (US);

Dieter Isheim, Chicago, IL (US);

Semyon Vaynman, Highland Park, IL (US);

Yip-Wah Chung, Wilmette, IL (US);

Zilin Jiang, Evanston, IL (US);

Allan V. Mathai, Evanston, IL (US);

Assignee:

NORTHWESTERN UNIVERSITY, Evanston, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/02 (2006.01); C21D 6/00 (2006.01); C21D 1/28 (2006.01); C22C 38/04 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01);
U.S. Cl.
CPC ...
C21D 6/002 (2013.01); C21D 1/28 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/26 (2013.01);
Abstract

Steel compositions are provided. A steel composition may include iron; from 0.015 to 0.06 wt. % carbon; from 9 to 12 wt. % chromium; from 0.75 to 1.5 wt. % manganese; from 0.08 to 0.18 wt. % molybdenum; from 0.10 to 0.30 wt. % silicon; from 0.2 to 1.0 wt. % vanadium; from 0.05 to 1.2 wt. % niobium; and optionally, an amount of an additional precipitate forming alloying element. Methods of making the steel compositions are also provided.


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