This article is cited in 2 papers

Estimation of the effective absorptivity of metals from the observation of their martensitic restructuring under laser radiation

A. A. Evtushenko^a, E. G. Ivanik^b, K. Rozniakowski^c, I. M. Dobryanskii<sup>d

a</sup> Polytechnika Byalostotska, Byalystok, Poland
^b Podstrigach Institute for Applied Problems in Mechanics and Mathematics, Ukrainian National Academy of Sciences, L'vov, 79053, Ukraine
^c Polytechnika Lodz'ka, Lodz', 93-590, Poland
^d L'vov State Agricultural University, L'vov, 80381, Ukraine

Abstract: 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 metallographically measured sizes of the polymorphic-transformation zone in the irradiated material. The method is tested on single-crystal cobalt and St.45 steel samples.

Keywords: laser, temperature, absorptivity, metal hardening.

UDC: 539.377

Received: 25.03.2003
Accepted: 25.06.2003

 English version: Journal of Applied Mechanics and Technical Physics, 2004, 45:1, 142–151

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