碳、钨离子共注入H13钢表面改性的研究  

PROPERTIES OF C+W CO-IMPLANTED H13 STEEL BY MEVVA ION SOURCE

作　　者：马芙蓉[1] 张通和[1] 梁宏[1] 张荟星[1] 张孝吉[1] 

机构地区：[1]北京师范大学射线束技术与材料改性教育部重点实验室,低能核物理研究所,北京市辐射中心,北京100875

出　　处：《北京师范大学学报（自然科学版）》2002年第1期45-47,共3页Journal of Beijing Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(6970061)

摘　　要：将不同单质机械混合，在不增加注入机离子源数目的基础上实现了不同离子的共注入.发现C+W离子共注入使H13钢表面强化，硬度和抗磨损能力提高，且注量的增大加强了这种强化效果.共注入增强了H13钢的抗均匀腐蚀能力，且比双注入效果好.在开始的15个周期致钝电流密度保持为零.C+W离子共注入提高了H13钢点蚀电位，大注量（4×1017 cm-2）注入时，点蚀电位升高了200mV，而双注入则使点蚀电位有所降低.To achieve co-implantation without additional ion sources, the required implants are mixed to form a cathode of MEVVA ion source. C+W co-implantation into H13 steel is carried out with the new method. The surface of H13 steel is strengthened, hardness and wear resistance are improved. The corrosion resistance of H13 steel is improved compared with both of un-implanted and C+W dual-implanted H13 steel. The pitting corrosion potential of C+W (4×1017 cm-2) co-implanted H13 steel is over 200mV higher than that of C+W dual-implanted H13 steel.

关 键 词：MEVVA源 离子共注入 H13钢 抗摩擦磨损 抗均匀腐蚀 抗点蚀 表面改性 碳 钨 

分 类 号：TG174.444[金属学及工艺—金属表面处理]