利用搅拌摩擦加工（FSP）新工具获得AA5754/ZrO2+hBN杂化表面复合材料优异的摩擦学和力学性能

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2025-04-10 DOI:10.1016/j.triboint.2025.110720

Yang Zhang , Keping Zhang , R. Vaira Vignesh , Sherzod Abdullaev , Yasser Fouad , Azlan Mohd Zain , Moslem Paidar

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引用次数: 0

摘要

刀具的设计是影响搅拌摩擦加工（FSP）加工表面复合材料效果的关键因素之一。本研究通过在FSP期间使用一种新工具来解决这一紧急情况。本研究探讨了用FSP加入ZrO2和hBN增强粉来增强AA5754铝合金的表面性能。实验使用两种不同的刀具几何形状-传统圆柱销（CCP）刀具和改进的凸出圆柱销（PCP）刀具进行，以评估刀具设计对颗粒分布和微观结构细化的影响。结果表明，在搅拌销上有一个凸出的PCP刀具可以提高表面外观质量。此外，还发现使用PCP工具可以使颗粒在基体上分散的均匀性达到最高水平。结果还表明，与使用CCP工具的样品（171 MPa）相比，使用PCP工具的样品FSPed的剪切强度最高（193 MPa）。较高的抗剪强度是由于基体中hBN和ZrO2颗粒的弥散明显改善以及搅拌区晶粒的进一步细化。从结果中还观察到，在搅拌销上有突起的刀具比具有常规销型的刀具具有更好的材料流动和更高的耐腐蚀和耐磨性。

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查看原文本刊更多论文

Achieving superior tribological and mechanical properties of AA5754/ZrO2+hBN hybrid surface composite by using a new tool in the friction stir processing (FSP)

The design of the tool is one of the key factors influencing the effectiveness of Friction Stir Processing (FSP) in fabricating surface composites. This investigation addresses this exigency by using a new tool during FSP. This study explores the use of FSP to enhance the surface properties of AA5754 aluminum alloy by incorporating ZrO₂ and hBN reinforcement powders. The experiments were performed using two distinct tool geometries – a Conventional Cylindrical Pin (CCP) tool and a modified Protruding Cylindrical Pin (PCP) tool, to assess the effect of tool design on particle distribution and microstructural refinement. Resulted revealed that the PCP tool, featuring a protrusion on the stirring pin, was developed to improve the quality of surface appearance. Moreover, it was found that utilizing a PCP tool resulted in the highest level of uniformity in particle dispersion across the matrix. The results also demonstrated that the highest shear strength was recorded for the sample FSPed with the PCP tool (193 MPa) as compared to the sample FSPed with the CCP tool (171 MPa). The higher shear strength is attributed to the significantly improved dissemination of hBN and ZrO₂ particles within the matrix and further refinement of grains in the stir zone. From the results, it was also observed that a tool with a protrusion on the stirring pin had better material flow and higher resistance to corrosion and wear than a tool with a regular pin profile.

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.