氮离子注入钛合金表面的耐点蚀性能研究  

Study on pitting corrosion behavior of titanium alloy surface with ion implantation

作　　者：陈伟荣[1] 王宙[1] 李智[1] 葛毓立[1] 

机构地区：[1]大连大学机械工程系,辽宁大连116622

出　　处：《大连大学学报》2002年第6期61-63,共3页Journal of Dalian University

摘　　要：在Ti-6Al-4V合金表面分别注入3×1017、6×1017、9×1017和2×1018N+/cm2四种剂量的氮离子后,测定了基体材料和四种不同注入剂量下试样在3.5％NaCl溶液中的阳极极化曲线,并对它们的耐点蚀性能进行了比较.结果表明,在五种试样中,以3×1017注入剂量下具有最好的耐点蚀性能,但它的再钝化能力相对较低.Four doses of nitrogen inos: 3 × 1017,6 × 1017,9 × 1017 and 2 × 1018 N+/cm2 are implanted into Ti-6Al-4V alloy surface. The anodic polarization curves of the five samples in 3.5 %NaCl solution are investigated. The pitting corrosion behavior is compared. The results show that the sample in 3 × 1017 N+/cm2 is the best in pitting corrosion resistance and passive ability is feeble.

关 键 词：耐点蚀性能 氮离子 钛合金 离子注入法 材料改性 

分 类 号：TG174.444[金属学及工艺—金属表面处理]