摘要
以ZM5镁合金为基体材料,应用铸造方法制备了4种不同稀土含量和比例的稀土镁合金。考察分析了稀土Y和Nd对ZM5合金组织结构、力学性能和腐蚀性能的影响。结果表明,铸态合金中出现了新相Ti2Mg3Al8,它对于减少晶界处第二相的析出有积极作用。ZM5合金的组织结构、力学性能和腐蚀性能随稀土Y和Nd的比例不同而有比较大的差异,在所有考察的ZM5合金中,添加2%Y和1%Nd稀土的合金综合效果最好。
Four ZM5 magnesium alloys containing rare earth elements Y and Nd were produced by cast. In cast process, the ZM5 magnesium alloy used as matrix alloy. In these alloys, the content and proportion of Y and Nd were different. The microstructure of as cast magnesium alloys were investigated by OM and XRD, the mechanical properties and corrosion velocity as solid solution alloys were tested by tensile experiment and corrosion experiment. The results show that the microstructures, mechanical properties and corrosion velocity of the ZM5 magnesium alloy containing rare earth depended on the proportion of Y and Nd. And in all magnesium alloys investigated in this paper, the good compositive property on microstructures, mechanical properties and corrosion velocity will appear when add 2%Y and 1%Nd in to the ZM5 magnesium alloy.
出处
《铸造技术》
EI
CAS
北大核心
2006年第1期45-48,共4页
Foundry Technology
基金
江西省重大科技攻关项目(CB200201060)
江西省材料科学与工程研究中心开放基金(ZX200401003)
关键词
ZM5镁合金
稀土
组织
性能
ZM5 magnesium alloy
Rare earth
Microstructure
Property
