| 微量Cu对生物Zn-Mg合金组织和生物降解行为的影响 |
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| 引用本文： | 张帅杰,黄浩,占维,张磊.微量Cu对生物Zn-Mg合金组织和生物降解行为的影响[J].特种铸造及有色合金,2020(5):573-576. |
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| 作者姓名： | 张帅杰 黄浩 占维 张磊 |
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| 作者单位： | 南昌航空大学航空制造工程学院 |
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| 基金项目： | 江西省自然科学基金资助项目(20181BAB206005)。 |
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| 摘 要： | 通过向生物医用Zn-0.8Mg合金中添加微量合金元素Cu,研究了Cu含量对合金组织和生物降解行为的影响。结果表明,随着Cu含量增加,合金中初生η-Zn相逐渐细化,其平均晶粒尺寸由106μm减小到43μm,同时,第二相的体积分数也随之逐渐增加。腐蚀浸泡和电化学测试结果均表明,随着Cu含量增加,合金在Hank’s溶液中的失重降解速率和自腐蚀电流密度均逐渐增大,表明合金的降解速率逐渐提高。
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| 关 键 词： | CU Zn-0.8Mg合金 组织 生物降解行为 |
Effects of Cu on Microstructure and Biodegradation Behavior of Zn-Mg Alloy |
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| Zhang Shuaijie,Huang Hao,Zhan Wei,Zhang Lei.Effects of Cu on Microstructure and Biodegradation Behavior of Zn-Mg Alloy[J].Special Casting & Nonferrous Alloys,2020(5):573-576. |
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| Authors: | Zhang Shuaijie Huang Hao Zhan Wei Zhang Lei |
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| Affiliation: | (School of Aeronautical Manufacture Engineering,Nanchang Hangkong University) |
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| Abstract: | Effects of Cu on microstructure and biodegradation behavior of Zn-0.8 Mg alloy were investigated. The results show that the primary η-Zn phase in the alloys is further refined with the increase of Cu contents, and the average grain size is gradually increased from 106 μm to 43 μm. Moreover, the volume fraction of second phase is gradually increased with the increase of Cu contents. The results reveal that corrosion rate and self-corrosion current density of the alloys are gradually increased with the increase of Cu contents, indicating that the degradation rate of the alloys in Hank’s solution is gradually increased. |
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| Keywords: | Cu Zn-0 8Mg Alloy Microstructure Biodegradation Behavior |
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