摘要
采用OM、失重法和电化学等手段研究了稀土Y（0%~0.5%）对镁合金组织和耐腐蚀性能的影响。结果表明,随着Y含量的增加,合金的第二相颗粒尺寸逐步发生了变化,第二相逐步被破坏,由连续网状分布慢慢分散,最后完全变为弥散分布的第二相颗粒。另外,在中性盐雾试验测试中,耐腐蚀性能随着Y含量的增加先上升后下降,当Y含量为0.3%时,合金腐蚀速率最低。
Adopting OM, mass loss and electrochemical means, the effects of rare earth Y（0%~0.5%） on the corrosion of magnesium alloy were researched. The results show that, with the increase of Y content, the sizes of the second phase particle in the alloy gradually change, and the second phase is gradually being destroyed from a continuous network distribution to completely dispersed distribution. In addition, the neutral salt spray tests show that the corrosion resistance first increases and then decreases with the increase of Y content. When Y content is 0.3%, the corrosion rate of the alloy is to a minimum value.
出处
《铸造技术》
CAS
北大核心
2016年第5期880-882,共3页
Foundry Technology
关键词
镁合金
Y
显微组织
腐蚀
Mg alloy
Y
microstructure
corrosion
