Oğur İYNEN, Abdul Kadir EKŞİ, Durmuş Ali BİRCAN

Effect Of Shot Peening Process On Alumix 431 Powder Materials

Bu çalışmada, endüstriyel uygulamalarda yaygın olarak kullanılan Alumix 431 tozları seçilmiştir. Alumix 431 tozları 400 MPa basınç ve oda sıcaklığında sıkıştırılmıştır. Daha sonra, sıkıştırılan numuneler 600 ºC ve 620 ºC sıcaklıklarda 1 saat sinterlenmiştir. Sinterleme işleminin yoğunluğa etkisini araştırmak için, sinterlenmiş numunelerin yoğunlukları farklı sıcaklıklara göre her biri ayrı olarak ölçülmüştür. Sinterleme işleminden sonra, bir grup numuneye 12A ve 16A yoğunluklarında bilyalı dövme işlemi uygulanmıştır. Sinterlenme ve bilyalı dövme yapılmış Alumix 431 toz malzemelerinin mekanik özelliklerini incelemek için çekme ve yorulma testleri yapılmıştır.

Anahtar Kelimeler:

Toz metallurjisi, Alumix 431, Sinterleme, Bilyalı dövme, Yorulma dayanımı

Bilyalı Dövme İşleminin Alumıx 431 Toz Malzemeler Üzerindeki Etkisi

In this work, Alumix 431 metal powders have been chosen for study due to widely used in the industrial applications. First, Alumix 431 powders were pressed at 400 MPa pressure and room temperature (RT). Then, pressed specimens were sintered at 600 ºC and 620 ºC temperatures for 1h separately. In order to examine effects of sintering operation to density, densities have been measured in per different temperature. After sintering operation, a group of specimen was shot peened in 12A and 16A intensities. To investigate mechanical properties of sintered and shot peened Alumix 431 powders, tensile and fatigue tests were performed.

Keywords:

Powder metallurgy, Alumix 431, Sintering, Shot peening, Fatigue strength,

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