| 生物医用Zn-5Al合金的微观组织与性能 |
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| 引用本文： | 祖国胤,刘莹,史建超,穆永亮. 生物医用Zn-5Al合金的微观组织与性能[J]. 东北大学学报(自然科学版), 2018, 39(1): 45-49. DOI: 10.12068/j.issn.1005-3026.2018.01.010 |
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| 作者姓名： | 祖国胤 刘莹 史建超 穆永亮 |
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| 作者单位： | (1. 东北大学 材料科学与工程学院， 辽宁 沈阳110819; 2. 东北大学 冶金学院， 辽宁 沈阳110819) |
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| 基金项目： | 国家自然科学基金-中国科学院大科学装置科学研究联合基金资助项目(U1332110)； 辽宁省“百千万人才工程”资助项目(2013921071). |
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| 摘 要： | 研究了生物医用Zn-5Al合金的微观组织结构演化，探讨了其组织对力学性能的影响.对铸态、均匀化处理和轧制态Zn-5Al合金的微观组织进行了表征，分析了合金的相组成，测试了轧制态Zn-5Al合金的力学性能.结果表明:铸态与均匀化处理后的Zn-5Al合金的相组成均主要为η-Zn相和α-Al相，铸态合金组织片层间距约为300nm.均匀化处理过程中发生了共析反应，合金中的α-Al相由铸态的长条形演变为球形共晶组织.经过总变形率85%的热轧变形后，Zn-5Al合金的屈服强度和抗拉强度分别为98MPa和130MPa，断裂延伸率达到74%.
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| 关 键 词： | Zn-5Al合金 生物医用 显微组织 轧制 力学性能 |
Microstructure and Properties of Biomedical Zn-5Al Alloy |
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| ZU Guo-yin,LIU Ying,SHI Jian-chao,MU Yong-liang. Microstructure and Properties of Biomedical Zn-5Al Alloy[J]. Journal of Northeastern University(Natural Science), 2018, 39(1): 45-49. DOI: 10.12068/j.issn.1005-3026.2018.01.010 |
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| Authors: | ZU Guo-yin LIU Ying SHI Jian-chao MU Yong-liang |
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| Affiliation: | 1.School of Materials Science & Engineering， Northeastern University， Shenyang 110819， China; 2.School of Metallurgy， Northeastern University， Shenyang 110819， China. |
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| Abstract: | The phase selection and microstructural evolution of biodegradable biomedical Zn-5Al alloy were studied. The microstructure of as casting， after homogenization treatment and the rolled Zn-5Al alloy was characterized， respectively and the phase compositions of the Zn-5Al alloy was analyzed.Then the mechanical properties of the rolled Zn-5Al alloy were tested. The results showed that the phase compositions of the as casting Zn-5Al alloy and after homogenization treatment were mainly composed by the η-Zn phase and α-Al phase. The interlamellar spacing of the eutectic structure in the as casting Zn-5Al alloy was about 300nm.The eutectoid reaction occurred during the homogenization treatment and the α-Al phase of the Zn-5Al alloy was changed from the original strip shape to spherical eutectic structure after homogenization treatment. After rolling of 85% for a total deformation rate， the yield and tensile strength of the Zn-5Al alloy were 98MPa and 130MPa， respectively， and its fracture elongation reached 74%. |
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| Keywords: | Zn-5Al alloy biomedical microstructure rolling mechanical property |
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