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:
Jan. 05, 2021
Filed:
Oct. 19, 2018
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Lang Feng, New York, NY (US);
Qiuzi Li, Clinton, NJ (US);
Harry W. Deckman, Clinton, NJ (US);
Paul M. Chaikin, New York, NY (US);
Neeraj S. Thirumalai, Easton, PA (US);
Shiun Ling, Washington, NJ (US);
Joseph W. Krynicki, The Woodlands, TX (US);
Jamey A. Fenske, Spring, TX (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
For method of utilizing a nondestructive evaluation method to inspect a steel material comprising at least one hysteretic ferromagnetic material and/or at least one nonhysteretic material to identify one or more material conditions and/or one or more inhomogeneities in steel material, the method can comprise the steps of: interrogating the hysteretic ferromagnetic material and/or the nonhysteretic material with an input time varying magnetic field; scanning the steel material and detecting a magnetic response and/or acoustic response over time from the hysteretic ferromagnetic material and/or the nonhysteretic material; determining a time dependent nonlinear characteristic of the received magnetic response and/or acoustic response; and correlating the time dependent nonlinear characteristic of the received magnetic response and/or acoustic response to the one or more material conditions and/or one or more inhomogeneities in steel material.