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Large-scale production of Ca_(65)Mg_(15)Zn_(20) bulk metallic glass samples by low-pressure die-casting

机译:低压压铸大规模生产Ca_(65)Mg_(15)Zn_(20)大块金属玻璃样品

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摘要

Ca_(65)Mg_(15)Zn_(20) bulk metallic glass samples of dimensions 3.15 mm × 7 mm × 125 mm were prepared using a repetitive low-pressure die-casting technique. It was found that charge temperature, injection pressure and fluid velocity at the mould gate were important parameters for controlling the length, porosity and the presence of crystalline phases in the as-cast samples. A processing map was generated which shows the optimum region of melt temperature and casting pressure for generating the highest quality castings of these dimensions.
机译:使用重复低压压铸技术制备了尺寸为3.15 mm×7 mm×125 mm的Ca_(65)Mg_(15)Zn_(20)大块金属玻璃样品。发现铸模浇口处的装料温度,注射压力和流体速度是控制铸态样品中长度,孔隙率和结晶相存在的重要参数。生成的加工图显示了熔体温度和铸造压力的最佳区域,以生成这些尺寸的最高品质铸件。

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