论文部分内容阅读
利用ICP测试仪、光学显微镜、扫描电镜、万能拉伸试验机和电化学工作站等,研究了不同添加量的Cd和Nd对ZK60镁合金显微组织、室温力学性能和电化学特性的影响。结果表明,在合金中通过加入适量的Cd可明显提高材料的韧度和抗拉强度,而Mg-Zn-Nd-Zr合金晶界处存在的连续网状第二相降低了其强度和伸长率。Nd的加入可显著提高合金的腐蚀电位。在合金中添加适量的Cd和Nd,不仅可改善其力学性能,同时也可增强合金的耐蚀性能。
The effects of Cd and Nd with different dosages on the microstructure, room temperature mechanical properties and electrochemical properties of ZK60 magnesium alloy were studied by using ICP tester, optical microscope, scanning electron microscope, universal tensile tester and electrochemical workstation. The results show that the toughness and tensile strength of the material can be obviously improved by adding appropriate amount of Cd, and the continuous network second phase existing in the grain boundary of Mg-Zn-Nd-Zr alloy reduces its strength and elongation . Nd addition can significantly improve the corrosion potential of the alloy. Adding an appropriate amount of Cd and Nd to the alloy not only improves its mechanical properties, but also enhances the corrosion resistance of the alloy.