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:
May. 25, 2010
Filed:
Apr. 06, 2006
Lloyd A. Hackel, Livermore, CA (US);
Tania M. Zaleski, Livermore, CA (US);
Hao-lin Chen, Lafayette, CA (US);
Michael R. Hill, Davis, CA (US);
Kevin K. Liu, Newark, CA (US);
Lloyd A. Hackel, Livermore, CA (US);
Tania M. Zaleski, Livermore, CA (US);
Hao-Lin Chen, Lafayette, CA (US);
Michael R. Hill, Davis, CA (US);
Kevin K. Liu, Newark, CA (US);
Lawrence Livermore National Security, LLC, Livermore, CA (US);
University of California, Davis, CA (US);
Abstract
A laser peening process for the densification of metal surfaces and sub-layers and for changing surface chemical activities provides retardation of the up-take and penetration of atoms and molecules, particularly Hydrogen, which improves the lifetime of such laser peened metals. Penetration of hydrogen into metals initiates an embrittlement that leaves the material susceptible to cracking.