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首页> 外文期刊>Journal of Materials Engineering and Performance >Processing, Microstructure, and Mechanical Properties of Large Spray-Deposited Hypoeutectic Al-Si Alloy Tubular Preform
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Processing, Microstructure, and Mechanical Properties of Large Spray-Deposited Hypoeutectic Al-Si Alloy Tubular Preform

机译：大型喷涂沉积的亚共晶Al-Si合金管状预成型坯的加工，组织和力学性能

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摘要

In this study, a large-scale hypoeutectic Al-Si alloy tubular preform was synthesized by spray-deposition technique and then subjected to a densification processing, wedge pressing (WP). Microstructure and mechanical properties of the as-sprayed and as-secondary processed tube were investigated. The experimental results show that the spray-deposited preform is a coalesced bulk consisting of atomized particles, porosity, and matrix alloy with modified microstructure. The mechanical properties of the porous spray deposits can be substantially improved after WP and subsequent heat treatment due to effective densification and improvements of microstructure.
机译：在这项研究中，大规模的亚共晶Al-Si合金管状预成型件通过喷涂沉积技术合成，然后进行致密化处理，楔压（WP）。研究了喷涂和二次加工管的显微组织和力学性能。实验结果表明，喷射沉积的预成型坯是由雾化的颗粒，孔隙率和具有改进的微观结构的基体合金组成的聚结块。由于有效的致密化和微观结构的改进，WP和后续热处理后，多孔喷涂沉积物的机械性能可以得到显着改善。

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