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OALib Journal期刊
ISSN: 2333-9721
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钛离子注入镁钙锌合金在sbf中的耐腐蚀性
Keywords: 材料失效与保护,？生物材料,？镁钙锌合金,？离子注入,？耐腐蚀性
Abstract:
？通过x射线能谱仪(eds)、x射线光电子能谱(xps)、纳米压痕、三电极体系法和扫描电子显微镜(sem)对mg--1.0%ca--1.0%zn(质量分数)镁合金表面注入元素的含量和分布、合金的表面硬度和弹性模量、在sbf中的极化曲线、浸泡后的合金形貌进行了观测和表征,研究了合金在钛离子剂量为1.5？×1017cm-2注入条件下在模拟体液(simulatedbodyfluid,sbf)中的耐腐蚀性。结果表明:对于钛离子注入的镁合金,随着注入剂量的增加合金表面元素的含量增加,注入的钛在合金表面形成tio2层,合金的表面硬度和弹性模量增加,在100nm深度处表面硬度达到最大;同时,合金的极化阻力增大,提高了耐腐蚀性能。
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