Neodim içeren MAO işlemi uygulanmış AZ31 Saç Alaşımların Kuru Ortam Aşınma Davranışı

Yıl 2020, 4. International Conference on Material Science and Technology (IMSTEC 2019) özel sayı, 64 - 68, 01.07.2020

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

https://doi.org/10.17100/nevbiltek.726543

Öz

Bu çalışmada, %0,2-0,5 arasında Nd içeren AZ31 alaşımları alçak basınçlı kokil kalıba döküm yöntemiyle üretilmiştir. 400°C’de 4,7 ve 10 m/dk hadde hızlarında paso başına %30 deformasyon miktarıyla saç malzemeler üretilmiştir. Saç malzemelere mikro ark oksidasyon (MAO) yüzey kaplaması yapılmıştır. Farklı miktarda Nd içeren saç AZ31 alaşımlarına ASTM G-133 standardına göre kuru ortamda ileri-geri hareketli aşınma testi uygulanmıştır. Hem Nd ilavesinin hem de MAO kaplamasının saç AZ31 Mg alaşımlarının aşınma direnci üzerine etkisi mikroyapısal çalışmalar ile desteklenerek sistematik olarak incelenmiştir.

Anahtar Kelimeler

AZ31, Sıcak Hadde, Nd, Aşınma, MAO

Teşekkür

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

Dry Wear Behaviour of MAO Applied AZ31 Sheet Alloys Containing Neodymium

Öz

In this study, in the range of 0.2% to 0.5% Nd elements were added to AZ31 alloys produced by low pressure die casting method. The hot rolling process was applied to these produced alloys at 400 °C with 4,7 and 10 meter per minute rolling speeds at 30% deformation rate per pass. Micro arc oxidation (MAO) were applied to produced alloys. The wear resistance of samples extracted from sheets that have included different surface morphology after various Nd adding were investigated at dry condition according to ASTM G-133 of the standard test method for linearly reciprocating ball-on-flat sliding wear. The effect of MAO coating and Nd addition on wear resistance of investigated alloys was studied systematically on the base of microstructure analysis.

Anahtar Kelimeler

AZ31, Hot Rolling, Nd, Wear, MAO

Kaynakça

• Referans1 Song, Guang-Ling, ed. “Corrosion prevention of magnesium alloys” Elsevier,545p, 2013.
• Referans2 López, A. J., Rodrigo, P., Torres, B., & Rams, J., "Dry sliding wear behaviour of ZE41A magnesium alloy." Wear, 271,11-12, 2836-2844, 2011.
• Referans3 Agarwal, S., Curtin, J., Duffy, B., & Jaiswal, S., "Biodegradable magnesium alloys for orthopaedic applications: A review on corrosion, biocompatibility and surface modifications." Materials Science and Engineering: C, 68, 948-963, 2016.
• Referans4 Zhang, X. P., Zhao, Z. P., Wu, F. M., Wang, Y. L., & Wu, J., "Corrosion and wear resistance of AZ91D magnesium alloy with and without microarc oxidation coating in Hank’s solution." Journal of Materials Science, 42.20, 8523-8528, 2007.
• Referans5 Sun, X., Nouri, M., Wang, Y., & Li, D. Y.,"Corrosive wear resistance of Mg–Al–Zn alloys with alloyed yttrium." Wear, 302.1-2, 1624-1632, 2013.
• Referans6 López, A. J., Rodrigo, P., Torres, B., & Rams, J., “Dry sliding wear behaviour of ZE41A magnesium alloy." Wear, 271.11-12, 2836-2844, 2011.
• Referans7 Zhang, J., Wang, J., Qiu, X., Zhang, D., Tian, Z., Niu, X., ... & Meng, J., "Effect of Nd on the microstructure, mechanical properties and corrosion behavior of die-cast Mg–4Al-based alloy." Journal of Alloys and Compounds, 464.1-2, 556-564, 2008.
• Referans8 Elmansouri, G., Kara, I. H., Ahlatci, H., & Turen, Y., “The Immersion Corrosion Resistance of Shot Peening and MAO Applied on AZ31− 0.5% La Sheets”. Engineering, Technology & Applied Science Research, 10(1), 5201-5204, 2020.