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Investigating the Effective Factors for Enhancing the Optimization of Al6061/8Al2O3-3WC-8SiC Composite using the Friction Stir Process | ||
| Mechanics of Advanced Composite Structures | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 10 دی 1404 اصل مقاله (470.42 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/macs.2025.35652.1747 | ||
| نویسندگان | ||
| Mohammad Hasan Rajabi1؛ Hossein Lashgari1؛ Mohammad Hoseinpour Gollo2؛ Amir Momeni3؛ Soroush Parvizi* 1 | ||
| 1Department of Materials Engineering & Interdisciplinary Science, Shahid Rajaee Teacher Training University, Tehran, 1678815811, Iran | ||
| 2Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, 1678815811, Iran | ||
| 3Department of Materials Engineering, Hamedan University of Technology, Hamedan, 65155579, Iran | ||
| تاریخ دریافت: 26 مهر 1403، تاریخ بازنگری: 30 فروردین 1404، تاریخ پذیرش: 10 دی 1404 | ||
| چکیده | ||
| Article history: Received: Revised: Accepted: Friction Stir Processing (FSP) is an advanced solid-state technique widely recognized for its ability to enhance the microstructural and mechanical properties of materials, particularly in the fabrication of surface composites. This study investigates the application of FSP to fabricate a surface composite based on Al6061 alloy, reinforced with 8% Al₂O₃, 3% WC, and 8% SiC particles, aiming to improve its mechanical performance. A series of experiments were conducted to evaluate the effects of varying rotational and linear speeds on the processed samples. The results revealed an 89% reduction in grain size within the stir zone, decreasing from 92 ± 8 µm to 10 ± 1 µm, accompanied by a significant increase in hardness from 44 HV₅₀ to 61 HV₅₀, representing a 38.6% improvement. Increasing the number of FSP passes further enhanced hardness, with values of 53 HV₅₀, 60 HV₅₀, and 61 HV₅₀ for one, two, and four passes, respectively, indicating a 15.1% increase. A consistent ratio of 25 between rotational and traverse speeds was identified for aluminum alloy 6061, emphasizing the importance of precise parameter control. The optimum processing parameters were determined to be a rotational speed of 1000 rpm, a traverse speed of 40 mm/min, and four passes. Moreover, the incorporation of reinforcing particles significantly improved hardness, increasing from 50 HV₅₀ to 61 HV₅₀, a 22% enhancement, highlighting their critical role in strengthening the material. These findings demonstrate the potential of FSP as a highly effective method for optimizing material performance, offering valuable insights for applications in industries such as automotive, medical, and railway transportation. | ||
| کلیدواژهها | ||
| Friction Stir processing؛ 6061 aluminum alloy؛ Hardness test؛ Composite | ||
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