Metallography Investigation of Thermal Wave Control by Magneto-Static Field

Abstract

In this paper we have studied the effect of magneto-static field onpropagation of thermal wave generated in metal by pulsed laser. In fact this interactiongenerate acoustic wave in different mechanisms. However, always the commonmechanism in the interactions of laser pulse and metal is the thermo-elastic wavegeneration. Applying the suitable magneto-static field on the surface of interaction oflaser pulse and metal can trap the propagation of thermal wave in thermo-elastic regime.The physical mechanism of trapping and experimental results have investigated in thispaper. We obtained maximum reduction in 2D thermal wave propagation aroundin simulation and around 5.3% by metallography.

Keywords

• thermal wave
• metallography
• magnetic field