ESTIMATION OF THE EFFECTIVE ABSORPTIVITY OF METALS FROM THE OBSERVATION OF THEIR MARTENSITIC RESTRUCTURING UNDER LASER RADIATION

摘要

A new experimental method is proposed for determining the effective absorptivity of a metal under pulsed laser radiation. The method is based on solving an axisymmetric boundary-value heat-conduction problem for a half-space with the use of rnetallographically measured, sizes of the polymorphic-transformation zone in the irradiated material. The method in tested on single-crystal cobalt and St. 45 steel samples.