Skip to Content
Find More Like This
Return to Search

Method and apparatus for imparting strength to a material using sliding loads

United States Patent

5,881,594
March 16, 1999
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A method of enhancing the strength of metals by affecting subsurface zones developed during the application of large sliding loads. Stresses which develop locally within the near surface zone can be many times larger than those predicted from the applied load and the friction coefficient. These stress concentrations arise from two sources: 1) asperity interactions and 2) local and momentary bonding between the two surfaces. By controlling these parameters more desirable strength characteristics can be developed in weaker metals to provide much greater strength to rival that of steel, for example.
Hughes; Darcy Anne (Fremont, CA), Dawson; Daniel B. (Pleasanton, CA), Korellis; John S. (Livermore, CA)
Sandia Corporation (Livermore, CA)
08/ 853,973
May 9, 1997
BACKGROUND AND DISCUSSION OF THE INVENTION The government has rights in this invention pursuant to contract no. DE-AC04-94AL8500 between the U.S. Department of Energy and Sandia Corporation.