Laser Surface Melting of Stainless Steel Anodes for Reduced Hydrogen Outgassing (Postprint)
Abstract
Anodes of 304 stainless steel have been processed by a continuous wave Yb fiber laser with a wavelength of 1.064 m and subjected to 50 keV electron bombardment in order to determine the extent to which hydrogen outgassing is reduced by the laser surface melting treatment. The results show a reduction in outgassing, by approximately a factor of four compared to that from untreated stainless steel. This is attributed to a reduction in the number of grain boundaries which serve as trapping sites for hydrogen in stainless steel. Such laser treated anodes do not require post-processing to preserve the benefits of the treatment and are excellent candidates for use in high power source devices.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 29, 2016
- Accession Number
- AD1035345
Entities
People
- D. Gortat
- G. J. Gruen
- M. Cahay
- M. Sparkes
- N. P. Lockwood
- P. T. Murray
- Steven B. Fairchild
- T. C. Back
- W. O'neill
Organizations
- University of Cambridge