Homojenleştirme Süresinin Mg-Al-Sn-Mn-La-Gd Alaşımın Aşınma Davranışı Üzerindeki Etkisinin İncelenmesi

Bu çalışmada, Mg-2.5Al-0.3Mn-0.4La-0.2Gd alaşımları düşük basınçlı kokil kalıba döküm yöntemiyle başarılı bir şekilde üretilmiştir. Döküm sonrası 350℃ de 4,8 ve 12 saat boyunca homojenleştirme ısıl işlemi uygulanmıştır. Kuru ortamda ileri-geri aşınma testleri homojenleştirilmiş numunelere 1,2 ve 3 kg yük altında uygulanmış ve hacimsel metal kaybı hesaplanmıştır. Aşınma testleri sonuçları ve mikroyapı arasındaki ilişki optik mikroskop, taramalı elektron mikroskobu ve XRD metotları kullanılarak araştırılmıştır.

Anahtar Kelimeler:

Mg-Al-Sn esaslı Mg alaşım, La, Gd, Aşınma, Homojenleştirme

Investigation of the Effect of Homogenization Time on the Wear Behavior of Mg-Al-Sn-Mn-La-Gd Alloy

In this study, Mg-2.5Al-0.3Mn-0.4La-0.2Gd alloys were successfully produced by low pressure permanent mold casting method. After casting, homogenization heat treatment was applied at 350°C for 4.8 and 12 hours. Back and forth wear tests in dry conditions were applied to homogenized samples under 1,2 and 3 kg load and volumetric metal loss was calculated. The relationship between wear test results and microstructure was investigated using optical microscope, scanning electron microscope and XRD methods.

Keywords:

Mg-Al-Sn base Mg alloys, La, Gd, Wear, Homogenization.,

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Asl, K., Masoudi, A., & Khomamizadeh, F. (2010). The effect of different rare earth elements content on microstructure, mechanical and wear behavior of Mg–Al–Zn alloy. Materials Science and Engineering : A, 527(7-8), s. 2027-2035.
ASTM. (1968). Evaluation of Wear Testing. San Francisco: American Society for Testing and Materials.
Bu, F., Yang, Q., Guan, K., Qoi, X., Zhang, D., Sun, W., . . . Meng, J. (2016). Study on the mutual effect of La and Gd on microstructure and mechanical properties of Mg-Al-Zn extruded alloy. 688, 1241-1250.
Cug, H., & Ahlatci, H. (2017). Effect of Zn and Mn Additions on the Wear Resistance Cast Alloy Mg-5%Al-1%Si. Metal Science and Heat Treatment, 59(7-8), 161-167.
Ilanaganar, E., & Anbuselvan, S. (2018). Wear mechanisms of AZ31B magnesium alloy during dry sliding condition. Materials Today: Proceedings , 5, s. 628-635.
Jena, A., Naskar, N., Kumar, N., & Paliwal, M. (2020). Investigation of As-Cast and Homogenized Microstructure in Mg–6 wt% Sn–1 wt% Al Alloy: An Experimental and Modelling Study. Metals and Materials International, 1-13.
Kabir, A., Sanjari, M., Su, J., Jung, I.-H., & Yue, S. (2014). Effect of strain-induced precipitation on dynamic recrystallization in Mg–Al–Sn alloys. Materials Science and Engineering: A, 616, 252-259.
Nouri, M., Sun, X., & Li, D. (2013). Beneficial effects of yttrium on the performance of Mg–3%Al alloy during wear, corrosion and corrosive wear. 67, s. 154-163.
W.P. Li, H. Z. (2009). Effect of gadolinium on microstructure and rolling capability of AZ31 alloy . Journal of Alloys and Compounds, 227–232.
Wu, Y., Wang, Z., Liu, Y., Li, G., Xie, S., Yu, H., & Xiong, H. (2019). AZ61 and AZ61-La Alloys as Anodes for Mg-Air Battery. Journal of Materials Engineering and Performance, 28(4), 2006–2016 .
Yang, L., Yuhao, L., Ge, S., Jian, S., Xiaogang, L., & Huimin, L. (2018). Effect of Homogenization on Microstructure and Mechanical Property of Mg-5.9Zn-1.6Zr-1.6Nd-0.9Y Alloy. 47(5), 1393-1398.