Use Of Laser Generated Shocks To Improve The Properties Of Metals And Alloys

B. P. Fairand; A. H. Clauer

doi:10.1117/12.954969

30 December 1976 Use Of Laser Generated Shocks To Improve The Properties Of Metals And Alloys

B. P. Fairand, A. H. Clauer

Proceedings Volume 0086, Industrial Applications of High Power Laser Technology; (1976) https://doi.org/10.1117/12.954969
Event: 20th Annual Technical Symposium, 1976, San Diego, United States

Abstract

Pulsed lasers are being used to generate high amplitude stress waves in metals and change their mechanical properties. Peak pressures greater than 5 GPa are generated in a metal or alloy when it is covered with a transparent material. These pressures exceed the Hugoniot elastic limit of most metals and produce networks of tangled dislocations in the metals substructure which is the source of the observed change in material properties. The strength, hardness, and fatigue properties of 7000 series aluminum alloys are improved in this manner. Weld zones in aluminum are strengthened up to the bulk level and the surface hardness of stainless steel is increased.

Citation Download Citation

B. P. Fairand and A. H. Clauer "Use Of Laser Generated Shocks To Improve The Properties Of Metals And Alloys", Proc. SPIE 0086, Industrial Applications of High Power Laser Technology, (30 December 1976); https://doi.org/10.1117/12.954969

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