Structure-phase transformation in surface layers of hard alloy as a result of action of high-current electron beams

被引：0
|
作者：
V. V. Uglov
N. N. Koval’
A. K. Kuleshvov
Yu. F. Ivanov
A. D. Teresov
E. A. Soldatenko
机构：
[1] Belarusian State University,
[2] High Current Electronics Institute,undefined
来源：
Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques | 2011年 / 5卷
关键词：
hard alloy; low-energy high-current electron beam; structure-phase transformations; “explosive” crystallization; microhardness;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This work discusses the influence of pulse action by low-energy high-current electron beams on the structure-phase state of near-surface layers of T15K6 hard alloy. It is found that, upon an increase in energy density as a consequence of melting of the alloy carbides, there occurs formation of tungsten saturated hard alloy (Ti, W)C and the transformation WC → W2C upon crystallization. Depending on the radiation mode, there occurs formation of a cellular (typical for “explosive” crystallization) or dendrite structure of the surface. These structure-phase transformations result in up to a threefold increase in the microhardness of the surface of the irradiated material.
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页码：350 / 357
页数：7
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