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

Abstract

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.

Keywords

• 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

Abstract

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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