Lateral friction surfacing: experimental and metallurgical analysis of different aluminum alloy depositions
Lateral friction surfacing: experimental and metallurgical analysis of different aluminum alloy depositions
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横向摩擦堆焊：不同铝合金沉积的实验和冶金分析
DOI：
10.1016/j.jmrt.2021.11.049
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发表时间：
2021-11-26
影响因子：
6.4
通讯作者：
Miller, Scott F.
中科院分区：
文献类型：
--
作者：
Seidi, Ebrahim;Miller, Scott F.
侧向摩擦堆焊是一种新型的摩擦堆焊技术，它是一种固态熔敷工艺。在这种方法中，摩擦热和塑性变形导致消耗材料从工具的径向表面沉积到基底上。本文对AA 2011、AA 6061和AA 7075铝合金的横向摩擦堆焊进行了全面评估，特别关注工艺参数对涂层性能的影响。使用光学显微镜、红外热成像、扫描电子显微镜和EDS研究了工艺变量（如刀具转速、法向作用力和耗材类型）对沉积物工艺温度、物理和冶金特性的影响。研究表明，侧向摩擦堆焊方法可以获得超薄光滑的铝合金堆焊层。此外，在该技术中产生的温度足够低，以避免使基材塑化以及耗材和基材之间的混合，这减轻了对晶粒结构和冶金特性的热影响。不同合金的横向摩擦表面性能可以部分地由其材料性能来解释。由高法向力和工具旋转速度提供的高输入能量可能导致具有较低热导率和熔点的材料的沉积过程中的失败，这强调了过程期间的工艺参数的限制。(c)2021作者由爱思唯尔公司出版。这是一篇开放获取的文章，使用CC BY许可证（http：//creativecommons.org/licenses/by/4.0/）。
Lateral friction surfacing, a solid-state deposition process, is a novel friction surfacing technique. In this approach, frictional heat and plastic deformation result in deposition of consumable material from the radial surface of a tool onto a substrate. This paper presents a comprehensive assessment of lateral friction surfacing of AA2011, AA6061, and AA7075 aluminum alloys, with particular focus on the impacts of process parameters on the coating properties. The influence of process variables such as tool rotational speeds, normal applied forces, and type of consumable materials was investigated on the process temperature, physical, and metallurgical characteristics of the deposits using optical mi-croscopy, infrared thermography, scanning electron microscopy, and EDS. This study ex-hibits that the lateral friction surfacing approach enables the deposition of ultra-thin and smooth layers of different aluminum alloys. Furthermore, the temperature generated in this technique was low enough to avoid plasticizing the substrate and intermixing between the consumable material and substrate, which mitigates the thermal impacts on the grain structures and metallurgical characteristics. The lateral friction surfacing performance of the different alloys can be partially explained by their material properties. High input energy provided by high normal forces and tool rotational speeds may result in failure in the deposition process of materials with lower thermal conductivity and melting point, which emphasizes on limitations for the process parameters during the process. (c) 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).