Changes in the Crystal Structure of Metals in the Course of Their Laser Processing.

Autor: Vasil'ev, S. V., Val'ko, N. G., Ivanov, A. Yu., Sitkevich, A. L.
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Zdroj: Journal of Engineering Physics & Thermophysics; May2022, Vol. 95 Issue 3, p821-829, 9p
Abstrakt: By the x-ray diffractometry method, the authors found a change in the crystal structure of a number of metals in the zone of exposure of their surface to laser radiation with a flux density of 104–105 W/cm2. It has been shown that on exposure of the surface of metal samples to laser radiation, their crystal structure changes, in the exposed zone, from the equilibrium structure to a distorted one (having the shape of a parallelepiped, which is different from a cube). A relationship has been assumed between the disclosed effect and the occurrence of considerable microstresses in the zone of rapid anisotropic heating of metals. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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