HOMOGENISATION AND MICRO-ARC OXIDATION COATING PROCESS ON AZ91 Mg-ALLOY
Küçük Resim Yok
Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Scibulcom Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The purpose of the study is to examine the effects of homogenisation and micro-arc oxidation coating (MAO) processes on mechanical and metallurgical properties of AZ91 magnesium alloy. 50 mm x 50 mm x 5 mm AZ91 Mg-alloy samples were prepared for this study. Half of the samples were homogenised in the furnace at 410 C for 5 h. Hence half of the homogenised and half of the non-homogenised samples were coated with the use of micro-arc oxidation (MAO) technique at fixed voltage degree to obtain 20, 60 and 120 pm coating thickness, respectively. The surface characteristics of the coated samples were examined by using scanning electron microscope. The layer compositions of the samples were examined by using X-ray diffraction and scanning electron microscope. Fatigue strength of the specimens was studied by fatigue tests. On the other hand, microhardness and surface roughness were investigated. Then, wear tests were carried out using 'ball-on-disc' type tribometer under dry sliding condition. It was found that homogenisation has a positive effect on the quality and the durability of the material.
Açıklama
Anahtar Kelimeler
Homogenisation, Micro-Arc Oxidation, Fatigue Strength, Wear Tests, Magnesium Alloy, Behavior, Wear
Kaynak
Journal Of The Balkan Tribological Association
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
20
Sayı
4
