The effect of cryoprocessing on stabilization of VK6 hard alloy after irradiation by 5-MeV electrons was studied. Samples of similar microstructure were selected by measuring the structurally sensitive coercivity. Irradiation of VK6 hard alloy by fast electrons increased its microhardness by 30% as compared to the original samples. The microhardness of hard alloy VK6 samples after irradiation by fast electrons depended on the initial surface structure. The ground and polished surfaces of VK6 hard alloy were found to have different stress structures. Irradiation by fast 5-MeV electrons did not lead to formation of new phases. VK6 hard alloy was annealed in air at 30 – 100°C to determine the retention of the increased hardness of irradiated samples. Cryoprocessing could consolidate the increased surface microhardness and wear resistance after irradiation of VK6 hard alloy.

中文翻译：

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冷冻加工快速电子改性的硬质合金VK6切割板的显微硬度稳定性

研究了低温处理对5-MeV电子辐照后VK6硬质合金稳定性的影响。通过测量结构敏感的矫顽力来选择具有相似微观结构的样品。与原始样品相比，快速电子对VK6硬质合金的辐照将其显微硬度提高了30％。快速电子辐照后的硬质合金VK6样品的显微硬度取决于初始表面结构。发现VK6硬质合金的研磨表面具有不同的应力结构。快速的5 MeV电子辐照不会导致形成新相。VK6硬质合金在30 – 100°C的空气中退火，以确定保留被辐照样品增加的硬度。