Abstract
A high-energy, pulsed laser beam combined with suitable transparent overlays occn generate pressure pulses of up to 6 to 10 GPa on the surface of a metal. The propogation of these pressure pulses into the metal in the form of a shock wave produces changes in the materials micro structure and properties similar to those produced by shock waves caused in other ways. This paper reviews the mechanism of shock wave formation, calculations for predicting the pressure pulse shape and amplitude, in-depth microstructural changes and the property changes observed in metals. These property changes include increases in hardness, tensile strength and fatigue life. The increases in fatigue life appear to result from significant residual surface stresses introduced by the shock process.
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© 1981 Plenum Press, New York
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Clauer, A.H., Holbrook, J.H., Fairand, B.P. (1981). Effects of Laser Induced Shock Waves on Metals. In: Meyers, M.A., Murr, L.E. (eds) Shock Waves and High-Strain-Rate Phenomena in Metals. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3219-0_38
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DOI: https://doi.org/10.1007/978-1-4613-3219-0_38
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-3221-3
Online ISBN: 978-1-4613-3219-0
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