一、金属材料表面改性的经济意义和离子注入技术 巨大的经济意义始终是开展材料研究,提高金属材料表面抗磨、抗疲劳、耐腐蚀等性能的主要推动力。如在摩擦、磨损方面,1964年英国教育科研国务大臣邀请全国著名摩擦、润滑工程专家对全国进行了普查,并于1966年发表报告指出,英国如能运用摩擦学知识,每年可节约5.15亿英镑,美国国会在1975年度报告中也指出:由于摩擦、磨损造成的经济损失据估计约值1000亿美元,其中200亿是材料费,其它如零件表面的疲劳,腐蚀也是材料 First, the economic significance of surface modification of metal materials and ion implantation technology huge economic significance has always been to carry out material research, improve the surface of metal materials, anti-wear, anti-fatigue, corrosion resistance and other properties of the main driving force. In terms of friction and wear, in 1964, the British State Minister for Education, Science and Research invited the famous friction and lubrication engineering experts to conduct a nationwide census and published a report in 1966 that pointed out that if Britain can use tribology to save up to 515 million pounds , The U.S. Congress also pointed out in its 1975 annual report that the economic losses due to friction and abrasion are estimated to be about 100 billion U.S. dollars, of which 20 billion is the material cost. Others, such as the surface fatigue and corrosion, are also materials