Surface nanostructure and amorphous state of a low carbon steel induced by high-current pulsed electron beam
Surface nanostructure and amorphous state of a low carbon steel induced by high-current pulsed electron beam
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DOI：
10.1016/j.surfcoat.2004.08.104
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发表时间：
2005-06
影响因子：
5.4
通讯作者：
Quanmei Guan;H. Zou;G. Zou;A. Wu;S. Hao;J. Zou;Ying Qin;C. Dong;Q. Zhang
中科院分区：
文献类型：
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作者：
Quanmei Guan;H. Zou;G. Zou;A. Wu;S. Hao;J. Zou;Ying Qin;C. Dong;Q. Zhang
使用电子显微镜和 X 射线衍射 (XRD) 研究了经过高电流脉冲电子束 (HCPEB) 处理的低碳钢 (0.2 wt.% C) 近表层的结构和相变。高电流电子束具有低能量（20-30 keV）、短脉冲（3.5 μs）和高能量密度（1.5-4 J cm−2）的特点。经过多次轰击后，近表面区域形成了由渗碳体和碳过饱和奥氏体组成的纳米结构。更多的轰炸甚至会导致僵化。
The structure and phase transformations in the near-surface layers of a low carbon steel (0.2 wt.% C) subjected to a high-current pulsed electron beam (HCPEB) treatments have been investigated by using electron microscopy and X-ray diffraction (XRD). The high-current electron beam is characterized by low energy (20–30 keV), short pulse (3.5 μs), and high energy density (1.5–4 J cm−2). A nanostructure consisting of cementite and C-supersaturated austenite is formed in the near-surface region after multiple bombardments. More bombardments even lead to vetrification.