银—锡—铅三元系富银合金固相平衡图已经用X-射线及金相显微镜两种方法测定了出来。并且每一相区的相边介都经过用X-射线方法作了精密确定。合金含量最高到30wt％锡及30wt％铝。 室温相截面由四个单相(即α,β,μ及γ)相区,五个变相(即α+β,α+μ,β+γ,β+μ及β+δ)相区及两个三相(即α+β+μ及β+γ+δ)相区所构成。所有四个单相与二元系Ag—Sn及Ag—Al所存在的单相相同,没有新的单相出现。 Silver-tin-lead ternary silver-rich alloy solid phase equilibrium diagram has been determined by X-ray and metallographic microscope two methods out. And the phase boundary of each phase region is determined by X-ray method. Alloy content up to 30wt% tin and 30wt% aluminum. The room-temperature cross-section consists of four single-phase (ie α, β, μ and γ) phase regions, five disguised (ie α + β, α + μ, β + γ, β + μ and β + δ) A three-phase (ie, α + β + μ and β + γ + δ) phase region. All four single-phase and binary systems Ag-Sn and Ag-Al exist the same single-phase, there is no new single-phase appearance.