The rapid solidification of an AL-10wt%Si-Sc alloy

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• 批准号: 485977-2015
• 负责人: Henein, Hani
• 金额: $ 4.35万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=600198
• 关键词: rapid; solidification; AL; 10wt; Si

Solidification of alloys is a complex phenomenon arising in many modern experimental techniques and industrial technologies related to casting and surfaces processing. The variation of different conditions of solidification (such as undercooling or cooling rate) gives a possibility to control the morphology and size of crystal structure, which substantially influence physical and chemical properties of alloys. In particular, deep undercooling of alloys below equilibrium liquidus, and eutectics results in rapid solidification and yields materials with improved mechanical, magnetic and electrical properties. The proposed 3 year project is a collaboration between Equispheres and the Univ. of Alberta. We will generate powder samples using Impulse Atomization (IA) - a single fluid rapid solidification technique. Al-Si (Sc) alloys will be generated. The latter is expected to be supersaturated in the alpha matrix due to undercooling. The solidified samples will be

合金的凝固是一种复杂的现象，出现在许多现代实验技术和工业技术与铸造和表面处理。不同的凝固条件（如过冷度或冷却速率）的变化提供了控制晶体结构的形态和尺寸的可能性，这实质上影响合金的物理和化学性能。特别地，低于平衡液相线的合金的深过冷和共晶导致快速凝固并产生具有改进的机械、磁性和电性能的材料。拟议的3年项目是Equispheres和阿尔伯塔大学之间的合作。我们将使用脉冲雾化（IA）-一种单流体快速凝固技术生成粉末样品。将生成Al-Si（Sc）合金。由于过冷，预计后者在α矩阵中过饱和。固化的样品将