E. V. Yurchenko, G. V. Ghilețchii, S. A. Vatavu, V. I. Petrenko, D. Harea, C. Bubulinca, A. I. Dikusar
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引用次数: 0
摘要
摘要 结合 X 射线衍射和 X 射线荧光分析表明，用 T15K6 硬质合金制成的加工电极对 65G 钢进行电火花合金化时形成的强化层是一种纳米结晶材料，其中结晶相和非晶相的比例可通过改变放电能量来实现。由于放电能量的增加会导致表面粗糙度的增加及其非晶化，因此存在一个最佳放电能量值，在该值下所产生的纳米复合材料可达到最大耐磨性。在 E = 0.2 J 时，硬化层的耐磨性是未处理表面耐磨性的 7-10 倍。
Composition, Structure, and Wear Resistance of Surface Nanostructures Obtained by Electric Spark Alloying of 65G Steel
A combination of X-ray diffraction and X-ray fluorescence analysis has shown that the strengthened layer formed during electric spark alloying of 65G steel with a processing electrode made of the T15K6 hard alloy is a nanocrystalline material, the ratio of the crystalline and amorphous phases in which is achieved by changing the discharge energy. Since an increase in discharge energy leads to an increase in surface roughness and its amorphization, there is an optimal value of discharge energy at which maximum wear resistance of the resulting nanocomposites is achieved. At E = 0.2 J, the wear resistance of the hardened layer is 7–10 times higher than the wear resistance of the untreated surface.
期刊介绍：
Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.
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