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:
Mar. 20, 1984

Filed:

Jan. 05, 1983
Applicant:
Inventor:

Ruzica Petkovic-Luton, Englewood, NJ (US);

Assignee:

Exxon Research and Engineering Co., Florham Park, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 / ;
Abstract

Disclosed is a thermal mechanical treatment for improving the high temperature properties of cast austenitic heat resistant chromium-containing alloy steel structures which method comprises (a) heating the structures to at least the temperature at which chromium carbides go into solution, but below the temperature where incipient melting occurs; (b) maintaining the structures at such a temperature long enough so that at least 50% of the chromium carbides go into solution; (c) applying from about 15% to 60% plastic deformation by hot forming operations; and (d) cooling the structures to room temperature at such a rate to allow complete recrystallization of the grains to occur.


Find Patent Forward Citations

Petkovic-Luton, Ruzica. (1984). Thermal mechanical treatment for enhancing high temperature properties (U.S. Patent No. 4437900). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4437900

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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