Al2O3 Takviyeli Alüminyum Esaslı Kompozit Malzemelerde Mekanik Alaşımlama Süresinin Korozyon Davranışına Etkilerinin İncelenmesi

Yıl 2019, Cilt: 11 Sayı: 2, 576 - 583, 30.06.2019

Kubilay Karacif Hasan Karabulut Ramazan Çıtak

https://doi.org/10.29137/umagd.507023

Cited By: 3

Öz

Bu çalışmada toz metalurjisi yöntemi ile üretilen alümina (Al₂O₃) takviyeli alüminyum esaslı kompozit malzemelerde mekanik alaşımlama süresinin tuzlu ortamdaki korozyon davranışına etkileri incelenmiştir. Numunelerin toz metalurjisi yöntemi ile üretiminde, takviye malzemesi olan Al₂O₃ tozları ve ana malzeme olan alüminyum tozları karışımına 1 saat karıştırma veya 2, 4, 6, 10 saat mekanik alaşımlama işlemleri uygulanmıştır. Presleme ve sinterleme işlemleri sonrasında elde edilen Al₂O₃ takviyeli alüminyum esaslı kompozit numunelere tuzlu ortamında (%3,5 NaCl) potansiyodinamik yöntem ile elektrokimyasal korozyon testleri uygulanmıştır. Çalışma sonucunda, mekanik alaşımlama süresinin artması ile Al₂O₃ takviyeli alüminyum esaslı kompozit malzemenin korozyon dayanımının azaldığı belirlenmiştir.

Anahtar Kelimeler

Mekanik Alaşımlama, Korozyon, Al2O3

The Investigation of Effects of Mechanical Alloying Duration on Corrosion Behavior of Aluminum Composites Reinforced with Al2O3

Öz

In the study, the effects of mechanical alloying duration on corrosion
behavior of powder metal aluminum composites reinforced with alumina (Al₂O₃)
were investigated in saltwater medium. For composite materials production,
reinforcement Al₂O₃ powders and base metal aluminum
powders were applied one hours mixing
or mechanical alloying for 2, 4, 6 and 10 hours. After pressing and sintering
treatment of composite powders, electrochemical corrosion tests were applied in
saltwater solution (3.5 wt. % NaCl) by potentiodynamic methods. According to
corrosion test results, corrosion resistance of composite materials was
decreased with increasing of mechanical alloying duration.

Anahtar Kelimeler

Mechanical Alloying, Corrosion, Al2O3

Kaynakça

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