稀土Y强化金基微合金研究

Research on the Strengthening Effect of Y on Au-Base Microalloy

研究了Y对Au－Zr－Ge金基微合金的组织结构和力学性能的影响，结果表明：Y能改善第二相的形态和分布，显著地提高合金的力学性能．通过分析Y的强化作用．提出了组织特征参数--第二相尺寸因子，以表征合金的组织结构对性能的综合影响．

The effect of Y on the structure and mechanical properties of Au-Zi-Ge base microalloy is studied. It is shown that Y can modify the shape and distribution of the second phase and improve the mechanical properties remarkably. On the basis of analyzing the strengthening effect of Y, a parameter-second phase size factor is put forward to denote the comprehensive effect of the structure on the properties.