پديدآورندگان :
جندقي مريم نويسنده , پروين پرويز نويسنده , تركمني محمد جواد نويسنده مركز ملي علوم و فنون ليزر ايران، تهران
چكيده فارسي :
Alloying elements change of Stainless Steel SS-316 in laser welding
M. Jandaghi1, P. Parvin1*, M. J. Torkamany2, J. Sabbaghzadeh2
1. Physics Department, Amir kabir University of Technology, P.O.Box15875-4413, Tehran, Iran
2. Laser Sciences and Technologies National Laboratory, P.O .Box 14665-576, Tehran, Iran
Abstract-Experimentally studies of pulsed laser welding of stainless steel 316 in keyhole mode was done to examine a
vaporization model based on the kinetic theory of gases and the thermodynamic laws. Undesirable loss of volatile elements
affects on the weld metal composition and properties. The power density and pulse duration were the main investigated
variables. The model predicts that loss of alloying elements increase at higher peak powers and longer pulse durations.
Accordingly, the concentrations of iron, chromium, nickel and manganese were determined in the weld pool by means of the
Energy Dispersive X-ray analysis (EDX). It was shown that the composition alteration, predicted by the model due to varying
of the laser parameters is in well accordance to the corresponding experimental data.
. Keywords: Alloying element change, (EDX) analysis, Laser welding, Stainless Steel SS-316.
