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Published in:
2016 | OriginalPaper | Chapter
Effect of Extrusion Ratio on Mechanical Properties of Al-20Si Produced by Spray Deposition and Continuous Extrusion Technique
Authors : Yingli Liu, Jiancheng Yin, Hao Li, Yi Zhong
Published in: Light Metals 2016
Publisher: Springer International Publishing
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Spray deposition and continuous extrusion (SD-CE) forming technique is a novel technology that combines spray forming and continuous extrusion. Al-20Si alloy rods with a diameter of 8 mm have been fabricated using SD-CE with different extrusion ratios. The microstructure and mechanical properties of these alloy rods were investigated. Al-20Si alloy can be refined effectively by SD-CE, resulting in a great improvement of mechanical properties. The strength and hardness of these alloys gradually increase with increasing the extrusion ratio. However, the elongation rapidly rises with the extrusion ratio, and then gradually drops as the extrusion ratio reach critical level.