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The results of a study of surface hardening of steels by low-power (100W) CO 2 laser radiation are presented. Three-fold increase of surface microhardness of low- and medium-carbon steels was obtained. The depth of hardening zone was 170μm. A comparative analysis of laser hardening with the use of pulse (t=6ns, λ=532nm) radiation was made. The study shows that low-power CO 2 lasers...
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