Method And Apparatus For Imparting Strength To Materials Using Sliding Loads

Patent · Tue Mar 16 00:00:00 EST 1999

OSTI ID:879419

Hughes, Darcy Anne ^[1]; Dawson, Daniel B ^[2]; Korellis, John S ^[3]

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1. Fremont, CA
2. Pleasanton, CA
3. Livermore, CA

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.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Livermore, CA)
• Patent Number(s): US 5881594
• Application Number: 08/853973
• OSTI ID: 879419
• Country of Publication: United States
• Language: English