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三、离子注入改善金属表面的机械性能离子注入在金属材料改性中的作用有两方面: 1.是改善金属材料表面的机械和物理化学性能; 2.是研究金属原子运动的基本过程,制备新的合金、亚稳相及非晶态合金等。磨损问题是工业上材料及能源消耗的重大问题。据英国调查,在500多种典型的零件、工件中,于磨损而报废的竟达80％,运用摩擦学知识,每年可节约10亿英磅。美国每年消耗在材料方面的费用高达600亿美元。英国是最早开始离子注入金属材料改性
Third, ion implantation to improve the mechanical properties of the metal surface Ion implantation in the modification of metal materials in two ways: 1 is to improve the mechanical and physical and chemical properties of the metal surface; 2 is to study the basic process of metal atom movement, preparation New alloys, metastable phases and amorphous alloys. The problem of wear is a major issue in industrial materials and energy consumption. According to the British survey, in more than 500 kinds of typical parts and workpieces, it is 80% worn and scrapped. Using the knowledge of tribology, it can save 1 billion pounds a year. The United States consumes as much as $ 60 billion annually in materials costs. Britain is the earliest ion-implanted metal material to be modified