Laser peening for reducing hydrogen embrittlement
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.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Security, LLC, Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1176316
- Patent Number(s):
- 7723643
- Application Number:
- 11/400,618
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Hackel, Lloyd A., Zaleski, Tania M., Chen, Hao-Lin, Hill, Michael R., and Liu, Kevin K. Laser peening for reducing hydrogen embrittlement. United States: N. p., 2010.
Web.
Hackel, Lloyd A., Zaleski, Tania M., Chen, Hao-Lin, Hill, Michael R., & Liu, Kevin K. Laser peening for reducing hydrogen embrittlement. United States.
Hackel, Lloyd A., Zaleski, Tania M., Chen, Hao-Lin, Hill, Michael R., and Liu, Kevin K. Tue .
"Laser peening for reducing hydrogen embrittlement". United States. https://www.osti.gov/servlets/purl/1176316.
@article{osti_1176316,
title = {Laser peening for reducing hydrogen embrittlement},
author = {Hackel, Lloyd A. and Zaleski, Tania M. and Chen, Hao-Lin and Hill, Michael R. and Liu, Kevin K.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {5}
}
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Works referenced in this record:
Role of shot-peening on hydrogen embrittlement of a low-carbon steel and a 304 stainless steel
journal, January 1991
- Brass, A. M.; Chêne, J.; Anteri, G.
- Journal of Materials Science, Vol. 26, Issue 16