ABSTRACT Large-scale fabrication of Cu36Zr48Al8Ag8 amorphous alloy sheets having with lengths above 250 mm was performed using atmosphere-controlled twin roll strip casting. By constructing a continuous cooling transformation diagram, the critical cooling rate was determined to be 212.6 K/s. The size and morphology of the crystalline phases within the amorphous matrix, which was Al-rich and Ag-depleted, were confirmed by scanning electron microscopy. The presence of a small volume fraction fine dendritic crystalline phase was necessary for the improved plasticity of the amorphous strip under tensile deformation mode.

中文翻译：

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Cu36Zr48Al8Ag8块状金属玻璃板的气氛控制立式双辊薄带连铸

摘要 采用气氛控制的双辊薄带连铸技术对长度超过 250 mm 的 Cu36Zr48Al8Ag8 非晶合金薄板进行了大规模制造。通过构建连续冷却转变图，确定临界冷却速率为 212.6 K/s。通过扫描电子显微镜证实了富铝和贫银的非晶基质中结晶相的尺寸和形态。小体积分数的细枝晶相的存在对于在拉伸变形模式下改善非晶带材的塑性是必要的。