Article

FARKLI KOMPOZİSYONLARDAKİ Fe-Mg ALAŞIMLARIN MEKANİK ÖZELLİKLERİNİN İNCELENMESİ

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Abstract

z Toz metalurjisi, çok küçük boyutlu partikülleri birbirine bağlayarak karışık şekilli parçaların üretimini sağlayan bir yöntemdir. Bu çalışmada, Fe-Mg toz karışımları homojen bir şekilde toz karıştırıcıda 24 saat süreyle karıştırılmıştır. Elde edilen tozlar tek eksenli preste 300 bar basınç altında soğuk olarak preslendikten sonra Ar atmosfer ortamında 620 °C sıcaklıkta sinterleme işlemine tabi tutulmuşlardır. Sinterlenerek üretilen numunelere sırasıyla sertlik, yoğunluk ve gözeneklilik testleri uygulanmıştır. Metalografik analiz olarak XRD çalışması yapılmıştır. XRD analiz sonucu olarak Fe, Mg ve MgO faz değerleri bulunmuştur. Abstract Powder metallurgy is a method of producing mixed shaped parts by connecting very small sized particles together. In this work, Fe-Mg powder mixtures were homogeneously mixed in the powder mixer for 24 hours. The powders obtained were cold pressed under a uniaxial prestressing pressure of 300 bar and then subjected to sintering at 620 °C in Ar atmosphere. Hardness, density and porosity tests were applied to the samples produced by sintering, respectively. XRD work was done as a metallographic analysis. As a result of XRD analysis, Fe, Mg and MgO phase values were found.

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  • M Moravej
  • F Prima
  • M Fiset
  • D Mantovani
Moravej, M., Prima, F., Fiset, M., Mantovani, D., (2010), Electroformed Iron As New Biomaterial For Degradable Stents: Development Process and Structure-Properties Relationship, Acta Biomaterialia, 6: 1726-1735.