Formation of a small-scale periodic relief on the surface of metals due to the effect of polarized scanned radiation
Abstract
Experimental data are presented on the formation of a small-scale periodic relief on the surface of oxidizable metals due to the effect of the scanned radiation of a CW CO2 laser. In the experiments, the linearly polarized radiation of a 40-W CW CO2 laser was scanned at 0.1-6 mm/s over the polished and unpolished surfaces of VT1-0 titanium, stainless steel 12Kh18N10T, stainless steel with Cr and Cd coatings, and tungsten, molybdenum, and tantalum foils. Three types of periodic relief of various scales are identified. It is found that the orientation and periods of the small-scale relief as well as the conditions of its formation are consistent with the mechanism of the emission intensity redistribution.
- Publication:
-
Pisma v Zhurnal Tekhnischeskoi Fiziki
- Pub Date:
- September 1986
- Bibcode:
- 1986PZhTF..12.1104B
- Keywords:
-
- Carbon Dioxide Lasers;
- Continuous Wave Lasers;
- Laser Target Interactions;
- Linear Polarization;
- Metal Surfaces;
- Surface Roughness;
- Molybdenum Oxides;
- Periodic Variations;
- Scanning;
- Stainless Steels;
- Titanium Oxides;
- Tungsten Oxides;
- Lasers and Masers