Derin Maden Sondajlarında Ön İnceleme Aşaması Mühendislik Yaklaşımları ve Fizibilite Etütlerinin Gerçekleştirilmesi

Year 2019, Volume: 11 Issue: 2, 627 - 636, 30.06.2019

Mustafa Can Canoğlu

https://doi.org/10.29137/umagd.532738

Abstract

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.

Keywords

Mekanik Alaşımlama, Korozyon, Al2O3

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

Abstract

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.

Keywords

Mechanical Alloying, Corrosion, Al2O3

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