علوم و فناوری کامپوزیت

علوم و فناوری کامپوزیت

بررسی خواص مکانیکی و متالورژیکی نمونه‌های کامپوزیت فلزی Al6061/SiC حاصل از ریخته‌گری فراصوتی

نوع مقاله : مقاله پژوهشی

نویسندگان
1 دانشجوی کارشناسی ارشد، مهندسی مکانیک، دانشگاه علم و صنعت ایران، تهران.
2 استادیار، مهندسی مکانیک، دانشگاه علم و صنعت، تهران.
10.22068/jstc.2025.2067571.1932
چکیده
با رشد روز افزون استفاده از کامپوزیت‌های پایه فلزی در صنایع پیشرفته، روش‌های مختلف ساخت قطعات از جنس این کامپوزیت‌ها بیش از پیش مورد توجه قرار گرفته است. یکی از این روش‌ها استفاده از فناوری فراصوت توان بالا در فرایند ریخته‌گری می‌باشد. بدین منظور در پژوهش حاضر اثر اعمال ارتعاشات فراصوتی بر ریخته‌گری آلیاژ آلومینیوم 6061 (Al6061) و کامپوزیت فلزی پایه آلومینیوم 6061 تقویت شده با میکروذرات کاربید سیلیسیوم (Al6061/SiC) مورد بررسی قرار گرفته است. فرایند ریخته‌گری در دو حالت با و بدون اعمال ارتعاشات فراصوتی برای دو ماده ذکر شده انجام و اثر زمان اعمال ارتعاشات فراصوتی (1 و 2 دقیقه) بر پارامترهای خروجی فرایند شامل سختی و استحکام فشاری و اندازه دانه و توزیع اندازه ذرات تقویتی SiC ارزیابی شد. در عین حال در آزمون‌های مختلف اثر ذرات تقویت کننده (SiC) و اعمال ارتعاشات فراصوتی به طور مستقل نیز مورد توجه قرار گرفت. نتایج نشان داد در هر دو نمونه آلومینیوم پایه و کامپوزیت آلومینیوم-کاربید سیلیسیوم اعمال ارتعاشات فراصوتی موجب ایجاد ساختار ریزدانه در ریخته‌گری شده (نزدیک به 50 درصد کاهش اندازه دانه) و درنتیجه سختی (نزدیک 20 درصد افزایش سختی) و استحکام فشاری نمونه افزایش یافته است. همچنین در نمونه‌های کامپوزیت (Al6061/SiC) اعمال ارتعاشات فراصوتی موجب توزیع ریزتر و یکنواخت تر ذرات SiC در ماده پایه آلومینیوم شده است. این پدیده‌ها به اثر کاویتاسیون و جریان فراصوتی در مذاب نسبت داده شدند.
کلیدواژه‌ها
موضوعات

عنوان مقاله English

Investigation of mechanical and metallurgical properties of Al6061/SiC metal composite samples obtained by ultrasonic casting

نویسندگان English

Amir Hosain Moghimi 1
Rezvan Abedini 2
1 School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran.
2 School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran.
چکیده English

With the increasing use of Metal Matrix Composites (MMC) in advanced industries, various methods of manufacturing parts made of these composites have been re-considered. One of these methods is the use of high-power ultrasonic technology in the casting process (ultrasonic melt processing). For this purpose, in the present study, the effect of applying ultrasonic vibrations on the casting of aluminum alloy 6061 and Al6061/SiC MMC has been investigated. The ultrasonic melt processing has been carried out in two modes with and without applying ultrasonic vibrations for the two mentioned materials. Also, the effect of the time of ultrasonic melt processing (1 and 2 min) on the output parameters including hardness, compressive strength, grain size, and distribution of SiC reinforcing particles were investigated. At the same time, the effect of reinforcing particles (SiC) and ultrasonic melt processing independently was also investigated in various tests. The results showed that in both the Al6061 and Al6061/SiC, the application of ultrasonic vibrations caused the creation of a fine-grained structure in the casting (50% reduction in grain size) and as a result, the hardness (20% increase in hardness) and compressive strength of the sample increased. Also, in the metal composite (Al6061/SiC), the ultrasonic melt processing caused a finer and more uniform distribution of SiC particles in the base aluminum material. These phenomena were attributed to the effect of cavitation and acoustic streaming in the melt.

کلیدواژه‌ها English

Ultrasonic casting
Cavitation
Al6061/SiC
Metal Matrix Composite (MMC)
Compressive strength
[1] Campbell, J., “Complete casting handbook: metal casting processes, metallurgy, techniques and design,” Butterworth-Heinemann; 2015.
[2] Viswanathan, S., Apelian, D., Donahue, R. J., DasGupta, B., Gywn, M., Jorstad, J. L., “Casting,” ASM International; 2008.
[3] Gupta, M., Brabazon, D., “Introduction to Metal Matrix Composite Materials: An Introduction,” Encyclopedia of Materials: Composites. Oxford: Elsevier; 2021; pp. 1-10.
[4] Alizadeh, A., Heydari Beni, M., Rezaei, A., Eskandari Jam, J., “Fabrication and mechanical properties of AA5083/TiB2 in situ Composite by stir casting process,” In Persian, Journal of Science and Technology of Composites. Vol. 11, No. 3, pp. 2525-2535, 2024.
[5] Mohammadi Jazi, H., Vahdati, M., Mahdavi, A., “Modeling and optimization of variables affecting tensile properties of printed PP/Cu composite samples using LDM process,” In Persian, Iranian Journal of Manufacturing Engineering. Vol. 11, No. 8, pp. 10-19, 2024.
[6] Vahdati, M., “Modelling and optimization of parameters affecting the tensile strength and ductility of aluminum-based composite produced by FSA via RSM,” In Persian, Journal of Science and Technology of Composites, Vol. 7, No. 4, pp. 1207-1216, 2021.
[7] Abedini, R., Fartashvand, V., Abdullah, A., Alizadeh, Y., “Evaluation of process parameters and ultrasonic vibration in hot pressing of metal powders,” Materials Science and Engineering: B., Vol. 281, 2022.
[8] Vahdati, M., Varedi-Koulaei, S. M., “Optimization of multilayer perceptron neural network structure for simulating the effect of input variables on the spring-back phenomenon in the ultrasonic vibration assisted single point incremental forming,” AUT J. Mech Eng., Vol. 8, No. 4, pp. 337-350, 2024.
[9] Abdullah, A., Sotoodezadeh, M., Abedini, R., Fartashvand, V., “Experimental study on ultrasonic use in dry creep-feed up-grinding of aluminum 7075 and Steel X210Cr12,” International Journal of Precision Engineering and Manufacturing, Vol. 14, No. 2, pp. 191-198, 2013.
[10] Zamani, M. A., Abedini, R., Ghorbani, H., “The effect of parameters on joint strength in continuous ultrasonic welding of polypropylene reinforced with woven glass fibers,” In Persian, Iranian Journal of Manufacturing Engineering, Vol. 11, No. 10, pp. 56-65, 2024.
[11] Karimzad Ghavidel, A., Zadshakoyan, M., Kiani, G., “Fabrication of Carbon Nanotubes-Based Efficient Electromagnetic Waves Shields Nanocomposites Using Electro-Mechanically Dispersion Technique,” In Persian, Journal of Science and Technology of Composites, Vol. 8, No. 3, pp. 1737-1744, 2021.
[12] Li, X., Yang, Y., Cheng, X., “Ultrasonic-assisted fabrication of metal matrix nanocomposites,” Journal of Materials Science, Vol. 39, No. 9, pp. 3211-3212, 2004.
[13] Eskin, D. G., Tzanakis, I., Chapter 20. “Applications to solidification and casting of metals,” Gallego-Juárez, J. A., Graff, K. F., Lucas, M., editors, Power Ultrasonics (Second Edition): Woodhead Publishing, pp. 489-507, 2023.
[14] Jian, X., Xu, H., Meek, T. T., Han, Q., “Effect of power ultrasound on solidification of aluminum A356 alloy”. Materials Letters, Vol. 59, No. 2, pp. 190-193, 2005.
[15] Soni, S. K., Manimaran, D., Thomas, S. B., Thomas, B., “Microstructure and mechanical characterization of Al6061 based composite and nanocomposites prepared via conventional and ultrasonic-assisted melt-stirring techniques,” Materials Today Communications, Vol. 34, pp. 105222, 2023.
[16] Idrisi, A. H., Mourad, A-HI., “Conventional stir casting versus ultrasonic assisted stir casting process: Mechanical and physical characteristics of AMCs,” Journal of Alloys and Compounds, Vol. 805, pp. 502-508, 2019.
[17] Bajpai, G., Tiwari, A., Purohit, R., Namdev, A., Shubham, S. K., “Development of Al 7075 alloy with nano SiC composites through ultrasonic assisted stir casting techniques and mechanical testing of properties,” Advances in Materials and Processing Technologies, Vol. 10, No. 4, pp. 2780-2790, 2024.
[18] Puga, H., “Influence of ultrasonic melt treatment on microstructure and mechanical properties of AlSi9Cu3 alloy,” Journal of Materials Processing Technology, Vol. 211, pp. 1729-1735, 2011.
[19] Puga, M., Prokic, N., Dongen, “Breakthrough in Ultrasonic assisted industrial continuous casting,” Aluminium International Today, 2014.
[20] Pragathi, P., Elansezhian, R., “Mechanical and microstructure behaviour of aluminum nanocomposite fabricated by squeeze casting and ultrasonic aided squeeze casting: A comparative study,” Journal of Alloys and Compounds, Vol. 956, pp. 170203, 2023.
[21] Prokic, M., “Wideband Multi-Frequency, Multimode, and Modulated (MMM) Ultrasonic Technology,” Feng, H., Barbosa-Canovas, G., Weiss, J., editors, Ultrasound Technologies for Food and Bioprocessing. New York, NY: Springer New York, pp. 125-140, 2011.
[22] Don-Hyun, C., Yong-Il, K., Dae-Up, K., Seung-Boo, J., “Effect of SiC particles on microstructure and mechanical property of friction stir processed AA6061-T4,” Transactions of Nonferrous Metals Society of China, Vol. 22, pp. 614-618, 2012.