Fundamentals and applications of material modification by intense pulsed beams
Fundamentals and applications of material modification by intense pulsed beams
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DOI：
10.1016/j.surfcoat.2005.12.054
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发表时间：
2007-08
影响因子：
5.4
通讯作者：
S. Hao;Ying Qin;X. Mei;B. Gao;J. Zuo;Q. Guan;C. Dong;Q. Zhang
中科院分区：
文献类型：
--
作者：
S. Hao;Ying Qin;X. Mei;B. Gao;J. Zuo;Q. Guan;C. Dong;Q. Zhang
强脉冲束（IPB）技术，包括强脉冲离子束（IPIB）和强脉冲电子束（IPEB），在材料改性研究中受到越来越多的关注。与传统的离子注入和电子束辐射不同，IPB可以在很短的时间内向材料表面传递大量高强度的能量。通过高强度的能量凝聚，可以观察到微观结构、形态和性能的许多意想不到的变化。近年来，我们对IBPs对材料表面改性进行了理论和实验研究。本文引入物理模型来描述 IBP 辐射材料中温度场与应力场耦合的影响。建议采用冲击应力传播机制来解释毫米级深度上的材料改性。简要总结了我们在 IPB 材料改性方面的实验研究，包括微观结构、辐射损伤、表面形貌和力学性能的表征。我们还给出了一些 IBP 材料改性尝试应用于耐磨、耐腐蚀、表面合金化和薄膜沉积的例子。
Intense pulsed beam (IPB) techniques, including intense pulsed ion beams (IPIB) and intense pulsed electron beams (IPEB), are receiving more and more attention in the study of material modification. Being different from conventional ion implantation and electron beam radiation, IPBs can deliver much high-intensity energy to the surface of materials in a very short time. With high-intensity energetic condensation, there are many unexpected variations in microstructure, morphology and properties to be observed. In recent years, we have performed a study of the surface modification of materials by IBPs theoretically and experimentally. In this paper, a physical model is introduced to describe the effect of temperature field coupled with stress fields in the material radiated by IBPs. A mechanism of impact stress propagation is suggested to interpret the material modification over a depth of millimeter scale. A brief summary is given for our experimental study on IPB material modification, including characterization of the microstructure, radiation damage, surface morphologies, and mechanical properties. We also give some examples of IBP material modification trying to be applied to wear resistance, corrosion resistance, surface alloying, and film deposition.