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利用强流脉冲离子束(IPIB)技术应用于金属材料表面改性研究中已有的实验结果,多角度地阐述了金属材料表面经IPIB处理后“熔坑”现象的形成、硬度的提高、耐磨性和耐蚀性的改善机理。IPIB与材料表面相互作用产生极大的热—力学效应。部分原子形成烧蚀等离子体,然后在冲击波的作用下形成熔坑;相组成差异以及材料表面微区非平衡也是形成因素。由于IPIB辐照压缩波的影响、相组成变化及晶粒细化、抗氧化性增强,使金属材料在远程范围内硬度提高同时耐磨性改善。IPIB显著的热效应将金属成分纯净化和组织结构均匀化,从而提高材料耐蚀性。
The application of high-intensity pulsed ion beam (IPIB) technology to the surface modification of metal materials has been used to describe the existing experimental results of the surface modification of metal materials. The formation of the “crater” , Wear resistance and corrosion resistance improvement mechanism. The interaction of IPIB with the material surface produces a great thermo-mechanical effect. Some of the atoms form ablation plasmas and then form craters under the action of shock waves; the phase composition differences and the surface imbalance of the material surface are also factors. Due to the influence of compressive wave of IPIB irradiation, phase composition change and grain refinement, oxidation resistance is enhanced, the hardness of the metal material in the remote range is improved, and the abrasion resistance is improved. IPIB significant thermal effect of the pure metal composition and organizational structure of homogenization, thereby enhancing the material corrosion resistance.