Availability of methods of chemical thermodynamics and kinetics for the analysis of chemical transformations on metal surfaces under pulsed laser action

A computational thermodynamic approach to determining the phase-chemical composition of films formed on the surface of metals and alloys under laser oxidation in the normal atmosphere, depending on their bulk composition, laser exposure conditions, and composition of the atmosphere, is suggested. It is demonstrated for the example of a complex alloy (alloyed steel of Russian brand 12X18H10T) subjected to laser heating in air that, among the wide variety of different possible reactions of iron, nickel, or chromium with the components of air (oxygen, nitrogen, carbon, its compounds, atmospheric moisture, etc), only strictly defined reactions can occur. First of all these are metal oxidation processes with the formation of an oxide film whose phase and chemical composition is determined by temperature and heating duration. Simulated results are confirmed by the experimental data provided by energy-dispersive x-ray spectroscopy.

[1]  F. V. Bunkin,et al.  Influence of interference effects in oxide films on the kinetics of laser heating of metals , 1979 .

[2]  F. V. Bunkin,et al.  Thermochemical action of laser radiation , 1982 .

[3]  J. Hirvonen,et al.  Characterization of the surface oxide formed by excimer laser surface processing of aisi 304 stainless steel , 1990 .

[4]  X. Bai,et al.  The growth mechanism of the colored film on the stainless steel studied by 18O tracing and nuclear reaction analysis , 1999 .

[5]  V. A. Musevich,et al.  Effect of parameters of state on phase transitions of carbonized periclase refractories , 2007 .

[6]  E. Shakhno,et al.  Local Laser Oxidation of Thin Metal Films: Ultra-resolution in Theory and in Practice , 2008 .

[7]  Hongyu Zheng,et al.  Analysis of oxide formation induced by UV laser coloration of stainless steel , 2009 .

[8]  A. Baranov,et al.  Micro‐Raman characterization of laser‐induced local thermo‐oxidation of thin chromium films , 2011 .

[9]  A. Kozakov,et al.  Using auger electron spectroscopy for studying the composition of the surface of multicomponent alloys under the effect of pulsed laser irradiation , 2011 .

[10]  Vadim P. Veiko,et al.  Laser induced multicolor image formation on metal surfaces , 2011, Fundamentals of Laser Assisted Micro- and Nanotechnologies.

[11]  V. I. Konov,et al.  Laser in micro and nanoprocessing of diamond materials , 2012 .

[12]  V. Veiko,et al.  Diffusionless oxidation and structure modification of thin Cr films by the action of ultrashort laser pulses , 2012 .

[13]  E. Ryabov,et al.  Intramolecular vibrational redistribution: from high-resolution spectra to real-time dynamics , 2012 .