AZ31-1Ca Saç Alaşımların Korozyon Direncine Seryum ve İkizlenme Fraksiyonun Etkisi

Yıl 2020, , 86 - 90, 01.07.2020

İsmail Hakkı Kara , İsmail Hakkı Kara , Hayrettin Ahlatcı , Yunus Türen

https://doi.org/10.17100/nevbiltek.726558

Cited By: 1

Öz

Bu çalışmada, %0,2 ile %1 arasında Ce elementi AZ31-1Ca alaşımına ilave edilmiş ve alçak basınçlı kokil kalıba döküm yöntemiyle alaşımlar üretilmiştir. Üretilen alaşımlara 400 °C’de ve 1,5 m/min hadde hızında %15 olacak şekilde paso başına kesit daralması yapılarak sıcak haddeleme uygulanmıştır. ASTM G31 standardına göre saç malzemelerden çıkartılan malzemeler üzerinde 72 saat boyunca daldırma korozyon testi yapılmıştır. Ce ilaveli alaşımların korozyon direncine ikincil fazların, ortalama tane boyutunun ve ikizlenme fraksiyonun etkisi mikroyapısal karakterizasyon bulgularıyla desteklenerek incelenmiştir.

Anahtar Kelimeler

AZ31, Ca, Ce, Sıcak Hadde, Daldırma Korozyon

Destekleyen Kurum

Scientific Research Projects Coordination Unit of Karabük University

Proje Numarası

KBÜ-BAP-16/2-DR-081

Teşekkür

Bu makale, 4. International Conference on Material Science and Technology in Kızılcahamam/ANKARA (IMSTEC 2019) sempozyumunda sözlü sunum yapılmıştır

The Effect of Cerium and Twins Fraction on Corrosion Resistance of AZ31-1Ca Sheet Alloys

Öz

In this study, in the range of 0.2% to 1.0% Ce elements were added to AZ31-1Ca alloys produced by low pressure die casting method. Hot rolling process was applied to these produced alloys at 400 °C with 1,5 m/min rolling speed at 15% deformation rate per pass. The corrosion resistance of samples extracted from sheets that have included different twins fraction after various Ce adding were investigated at 3.5% NaCl solution for 72 hours according to ASTM G31 of Standard Practice for Laboratory Immersion Corrosion Testing of Metals. The effect of secondary phases, grain size and twins on immersion corrosion resistance of investigated alloys was studied systemically on the base of microstructure analysis.

Anahtar Kelimeler

AZ31, Ca, Ce, Hot Rolling, Immersion corrosion

Proje Numarası

KBÜ-BAP-16/2-DR-081

Kaynakça

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