Bazı Magnezyum Alaşımlarında Sürünme Hızı, Termal İletkenlik ve Karışım Entalpisi Arasındaki İlişkinin İncelenmesi

Yıl 2023, Cilt: 13 Sayı: 4, 1476 - 1489, 15.12.2023

Yiğit Türe

https://doi.org/10.31466/kfbd.1299160

Öz

Magnezyum (Mg) ve alaşımları, yüksek özgül güçleri ile bilinirler, ancak endüstriyel kullanım alanlarını genişletmek için ele alınması gereken sınırlamaları vardır. En büyük sınırlamalardan biri, yüksek sıcaklık performanslarıdır ve bu, havacılık gibi sürünme direncinin önemli olduğu endüstrilerde kullanılmaları için iyileştirme gerektirir. Bu çalışmada, ticari olarak kullanılan AZ serisi (AZ31, AZ61 ve AZ91) ve AM50, AX52 ve AE42 alaşımları dahil olmak üzere birçok Mg alaşımının sürünme davranışını inceledik. Bu alaşımların sürünme oranı ile iki malzeme özelliği arasındaki ilişkiyi inceledik: termal iletkenlik ve karıştırma entalpisi. Bu özellikleri analiz ederek, yeni geliştirilen veya mevcut alaşımları sürünme davranışları açısından karşılaştırabilir ve değerlendirebiliriz. Elde edilen sonuçlar genel olarak yorumlandığında, sürünme hızı, ısıl iletkenlik ve karışım entalpisi arasında genel bir eğilim olarak doğrusal bir ilişki bulunmuştur.

Anahtar Kelimeler

Mg alaşımları, Sürünme, Termal İletkenlik, Karışım entalpisi

Investigating the Relationship Between Creep Rate, Thermal Conductivity and Enthalpy of Mixing in Some Magnesium Alloys

Öz

Magnesium (Mg) and its alloys are known for their high specific strength, but they have limitations that need to be addressed to expand their range of industrial use. One major limitation is their high temperature performance, which requires improvement for them to be used in industries such as aviation where creep resistance is important. In this study, we investigated the creep behavior of several Mg alloys, including the commercially used AZ series (AZ31, AZ61, and AZ91), as well as the AM50, AX52, and AE42 alloys. We studied the relationship between the creep rate of these alloys and two material properties: thermal conductivity and enthalpy of mixing. By analyzing these properties, we can compare and evaluate newly developed or existing alloys in terms of their creep behavior. When the obtained results are interpreted in general, a linear relationship is found between the creep rate, thermal conductivity and enthalpy of mixing as a general trend.

Anahtar Kelimeler

Mg alloys, Creep, Thermal conductivity, Enthalpy of mixing

Kaynakça

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