利用扫描电子显微镜和能谱仪分析Cu对Ag-Ce合金组织与结构的影响。结果表明:Ag-Cu-Ce合金基体为银铜固溶体,晶粒较小,基体上弥散分布着恀多共生析出的β-Cu和Ag4Ce颗粒,Cu的加入改善了Ag4Ce的偏析现象。Ag-Ce和Ag-Cu-Ce合金的拉伸断口呈锥形,有明显的韧窝组织,为典型的韧性断裂。
The effects of Cu addition on the microstructure of Ag-Ce alloy were studied by SEM and EDS. The results showed that the main body of Ag-Cu-Ce alloys is silver-copper solid solution with smaller crystal grains, in which many symbiotically separated β-Cu and Ag4Ce particles were distributed diffusively. Cu addition segregation. Tensile fracture of Ag-Ce and Ag-Cu-Ce alloys was shown cone and left distinct tough pit, which is typical tough break.
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