新型Mg-Y-Nd-(La+Ce)-Zr镁合金可降解性能  

Degradability of Novel Mg-Y-Nd-(La+Ce)-Zr Magnesium Alloy

作　　者：祝理君 洪梦丽 张将[3] 沈忠良[1,4] 高云霄 Zhu Lijun;Hong Mengli;Zhang Jiang;Shen Zhongliang;Gao Yunxiao(Zhejiang Business Technology Institute;Hangzhou Oxygen Plant Group Co.,Ltd.;Ningbo Branch of Chinese Academy of Ordnance Science;Zhejiang Collaborative Innovation Center of Molded Products Surface Decoration and Intelligent Forming Technology)

机构地区：[1]浙江工商职业技术学院 [2]杭州制氧机集团股份有限公司 [3]中国兵器科学研究院宁波分院 [4]浙江省模塑制品表面装饰与智能成型技术协同创新中心

出　　处：《特种铸造及有色合金》2022年第8期1016-1020,共5页Special Casting & Nonferrous Alloys

基　　金：浙江省自然科学基金资助项目(LQ14F040004);浙江省公益技术研究计划/工业资助项目(LGG20E050001);浙江省教育厅科研资助项目(Y201942832)。

摘　　要：基于多元少量的合金化原则,在Mg中添加了Y、Nd、La、Ce等稀土元素及Zr元素,制备生物可降解镁合金。测试了镁合金的力学性能和腐蚀性能。结果表明,Mg-Y-Nd-(La+Ce)-Zr合金在Nd含量为2.7%,Y含量为4.2%,La+Ce含量为0.1%,Zr含量为0.5%时,抗拉强度达到223 MPa,力学性能较好,且在Hank’s溶液中腐蚀96 h后的平均腐蚀速率为0.209 mg/(cm^(2)·h)。Based on the principle of multi-element and small amount of alloying,rare earth elements such as Y,Nd,La,Ce,and Zr were added to Mg to prepare a novel magnesium alloy,and the mechanical properties and corrosion properties were measured.The results show that the tensile strength of Mg-Y-Nd-(La+Ce)-Zr magnesium alloy with 4.2%Y,2.7%Nd,0.1%(La+Ce),and 0.5%Zr reaches 223 MPa,presenting desirable mechanical properties.In addition,the average corrosion rate of the alloy is 0.209 mg/(cm^(2)·h) in Hank’s solution for 96 hours.

关 键 词：镁合金 多元 可降解 稀土 

分 类 号：TG146.22[一般工业技术—材料科学与工程] TG133.4[金属学及工艺—金属材料]