Abstract

The quality of a hard WC–3% Co alloy after surface modification by focused UV laser beams is studied. Melting traces 1–3 μm in size are found on the alloy surface in the treated zone at a radiation energy density E ≥ 1.6 J/cm². An increase in the radiation intensity to E ≈ 6.2 J/cm² results in an increase in the cobalt concentration on the surface from 7 to 10% along with a decrease in the carbon concentration from 33 to 18%.

中文翻译：

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强大的纳秒紫外激光脉冲对WC-3％硬质合金的表面改性

摘要

研究了经过聚焦的紫外激光束表面改性后的硬质WC–3％Co合金的质量。熔融痕迹1-3微米大小在一个辐射能量密度在处理过的区域中的合金表面上发现Ë ≥1.6焦耳/厘米²。在辐射强度的增加，以È ≈6.2焦耳/厘米^2周的结果与从33至18％，在碳浓度降低沿表面上的增加的钴浓度为7〜10％。