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首页> 外文会议>Materials science amp; technology 2011 conference amp; exhibition >Friction Stir Processing of Cold Sprayed Metal Matrix Composites for Enhanced Surface Properties
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Friction Stir Processing of Cold Sprayed Metal Matrix Composites for Enhanced Surface Properties

机译：增强金属表面性能的冷喷涂金属基复合材料的搅拌摩擦加工

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摘要

Cold Spray (CS) deposition and Friction Stir Processing (FSP) are two solid-staternprocesses that allow for the buildup and joining of materials while avoiding many of thernproblems of fusion processes. The research presented here is an evaluation of Friction StirrnProcessing applied to a cold sprayed Metal Matrix Composite (MMC) layer deposited on a 6061rnaluminum substrate. The MMC’s used in this study consisted of aluminum+SiC andrnaluminum+Al_2O_3 powders that were deposited onto the substrate via CS. The MMC’s werernsubsequently processed using FSP to see if it would homogenize the deposition, improve therncoatings hardness, and improve wear properties. Results show that FSP refined thernmicrostructure of the MMC and results in enhanced wear resistance and hardness compared tornunprocessed cold spray depositions. The research shows the potential to improve and tailorrnmaterial properties on the surface of aluminum alloys such as hardness, wear resistance, andrnductility to an application while maintaining a single material source.
机译：冷喷涂（CS）沉积和摩擦搅拌处理（FSP）是两个固态的过程，可以避免材料堆积和接合，同时避免了许多熔化过程中的问题。本文介绍的研究是对摩擦搅拌工艺的评估，该工艺适用于沉积在6061铝基板上的冷喷涂金属基复合材料（MMC）层。在这项研究中使用的MMC由铝+ SiC和铝+ Al_2O_3粉末组成，这些粉末通过CS沉积在基板上。随后使用FSP对MMC进行了处理，以查看其是否能够使沉积物均匀化，提高涂层硬度并改善耐磨性。结果表明，与未经处理的冷喷涂沉积相比，FSP改善了MMC的微观结构，并提高了耐磨性和硬度。研究表明，在保持单一材料来源的同时，可以改善和调整铝合金表面材料的性能，例如硬度，耐磨性和应用性。

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