Skip to Content
Find More Like This
Return to Search

Surface modification to prevent oxide scale spallation

United States Patent

July 16, 2013
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A surface modification to prevent oxide scale spallation is disclosed. The surface modification includes a ferritic stainless steel substrate having a modified surface. A cross-section of the modified surface exhibits a periodic morphology. The periodic morphology does not exceed a critical buckling length, which is equivalent to the length of a wave attribute observed in the cross section periodic morphology. The modified surface can be created using at least one of the following processes: shot peening, surface blasting and surface grinding. A coating can be applied to the modified surface.
Stephens; Elizabeth V. (Kennewick, WA), Sun; Xin (Richland, WA), Liu; Wenning (S. Pasadena, CA), Stevenson; Jeffry W. (Richland, WA), Surdoval; Wayne (Pittsburgh, PA), Khaleel; Mohammad A. (Richland, WA)
Battelle Memorial Institute (Richland, WA)
13/ 625,134
September 24, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The invention was made with Government support under Contract DE-AC05-76RL01830, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.