The microstructure and phase constituents at 1023 and 1123 K of the annealed Ag–Cu–Y alloys were studied by using scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). A new phase τ₂ at 1023 K was found at ~33.3 at.% Y between Ag₂Y and Cu₂Y. Another ternary compound τ₁(Ag₃Cu₁₂Y₅) was confirmed to be stable at 1023 and 1123 K, and the liquidus temperatures of two annealed alloys with single phase τ₁ were determined by thermal analysis techniques. Based on the obtained solubilities of compounds and phase equilibria data, the complete isothermal section at 1023 K and partial isothermal section with Y<50 at.% at 1123 K of the Ag–Cu–Y system were constructed.

使用扫描电子显微镜（SEM）和能量色散X射线光谱仪（EDX）和X射线衍射（XRD）研究了退火的Ag-Cu-Y合金在1023和1123 K时的显微组织和相组成。一个新的阶段τ ₂在1023 K的在〜33.3在找到。％Y的Ag之间₂ Y和铜₂ Y.另一个三元化合物τ ₁（AG ₃的Cu ₁₂ ÿ ₅）证实在1023和1123是稳定的K，并用单相两种退火合金的液相线温度τ ₁由热分析技术确定。根据获得的化合物溶解度和相平衡数据，构建了Ag-Cu-Y体系在1023 K时的完全等温截面和在1123 K时Y <50 at。％的部分等温截面。