Effect of ceramic particulate type on microstructure and properties of copper matrix composites synthesized by friction stir processing
Effect of ceramic particulate type on microstructure and properties of copper matrix composites synthesized by friction stir processing
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DOI：
10.1016/j.jmrt.2016.01.003
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发表时间：
2016-10-01
影响因子：
6.4
通讯作者：
Murugan, Nadarajan
中科院分区：
文献类型：
--
作者：
Dinaharan, Issac;Sathiskumar, Ramasamy;Murugan, Nadarajan
搅拌摩擦加工（FSP）是一种新型的制备大块和表面金属基复合材料的固态技术。本工作旨在利用FSP制备铜基复合材料（CMCs），并分析陶瓷增强类型（SiC, Al2O3， B4C和TiC）对微观组织，显微硬度和耐磨性的影响。在6毫米厚的铜板上做了一个凹槽，并填充了各种陶瓷颗粒。在刀具转速为1000 rpm，行程速度为40 mm/min，轴向力为10 kN的情况下，进行了单道FSP。利用光学显微镜和场发射扫描电镜研究了陶瓷颗粒的微观结构和分布。滑动磨损行为的评估使用销盘装置。结果表明：搅拌区、分布、晶粒尺寸、硬度和耐磨性的变化都在较短的范围内。尽管如此，在相同的实验条件下，Cu/B4C CMC的硬度和耐磨性优于其他CMC。(C) 2016巴西冶金、材料和矿业协会。由爱思唯尔编辑有限公司出版。
Friction stir processing (FSP) has been established as a novel solid state technique to produce bulk and surface metal matrix composites. The present work aim to produce copper matrix composites (CMCs) using FSP and analyze the effect of ceramic reinforcement type (SiC, Al2O3, B4C and TiC) on the evolving microstructure, microhardness and wear resistance behavior. A groove was made on 6 mm thick copper plates and packed with various ceramic particles. A single pass FSP was carried out using a tool rotational speed of 1000 rpm, travel speed of 40 mm/min and an axial force of 10 kN. The microstructure and distribution of the ceramic particles were studied using optical and field emission scanning electron microscopy. The sliding wear behavior was evaluated using a pin-on-disk apparatus. The results indicate that the variation in the stir zone, distribution, grain size, hardness and wear resistance of CMCs were within a short range. Nevertheless, Cu/B4C CMC exhibited superior hardness and wear resistance compared to other CMCs produced in this work under the same set of experimental conditions. (C) 2016 Brazilian Metallurgical, Materials and Mining Association. Published by Elsevier Editora Ltda.