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首页> 外文期刊>Materials and Manufacturing Processes >Influence of Processing Temperatures on Mechanical Properties and Microstructure of Squeeze Cast Aluminum Alloy Composites
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Influence of Processing Temperatures on Mechanical Properties and Microstructure of Squeeze Cast Aluminum Alloy Composites

机译：加工温度对挤压铸造铝合金复合材料力学性能和组织的影响

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摘要

The paper deals with the influence of melt and die temperatures on the squeeze cast silicon carbide particulate reinforced aluminum alloy composites. Samples were produced at the following constant melt and die temperatures: melt-750, 800, 850, and 900 degrees C; die-250, 300, 350, and 400 degrees C. During the specimen fabrication, pressure was maintained at 100MPa. The results reveal significant influence of both melt and die temperatures on the mechanical properties. The optimum melt and die temperatures for the preparation of the composite are 850 degrees C and 350 degrees C, respectively. Tensile and impact strengths, and hardness of composite samples prepared at this temperature combination are found to be better than those of samples prepared at other temperatures. Additionally, microstructures of samples prepared at this temperature combination display a relatively fine grain structure and the smallest degree of particle agglomeration which explain the dependence of mechanical properties on the melt and die temperatures.
机译：本文研究了熔体和模具温度对挤压铸造的碳化硅颗粒增强铝合金复合材料的影响。在以下恒定的熔体和模头温度下生产样品：熔体温度750、800、850和900摄氏度;在250、300、350和400摄氏度的温度下模压。在样品制造过程中，压力保持在100MPa。结果表明，熔体温度和模头温度均对机械性能产生重大影响。用于制备复合材料的最佳熔融温度和模头温度分别为850摄氏度和350摄氏度。发现在该温度组合下制备的复合样品的拉伸强度和冲击强度以及硬度比在其他温度下制备的样品更好。另外，在这种温度组合下制备的样品的微观结构显示出相对精细的晶粒结构和最小的颗粒团聚程度，这说明了机械性能对熔体和模具温度的依赖性。

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