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The effect of production parameters on the foaming behavior of spherical-shaped aluminum foam    
Yazarlar
Prof. Dr. Arif UZUN
Kastamonu Üniversitesi, Türkiye
Mehmet Türker
Gazi Üniversitesi, Türkiye
Uğur Sarı
Türkiye
Uğur Sarı
Türkiye
Özet
The effect of production parameters on the foaming behavior of spherical-shaped aluminum foam was studied. Elemental powders of Alumix 231 and 1% TiH2 were mixed, compacted at 600 MPa pressure by using a uniaxial action press to produce blanks with 50×30×10 mm in dimensions. These blanks were pre-heated at 550 °C in a furnace for 180 min and then deformed by 10, 30, 50 and 70% by using an eccentric press. They were cut into square shape and foamed at temperatures between 650 °C and 710 °C. It was experimentally found that, the volume expansion rate of foam increases but the maximum foaming duration decreases with increasing the deformation rate and foaming temperature. In these studies 70% deformation and 3.5 minutes foaming duration were found to be the best for the production of spherical foams. This was determined by obtaining the maximum expansion, lower density and homogeneously distributed pores with spherical foams. It was also found that 10% deformation rate was not enough for foaming.
Anahtar Kelimeler
APM foam,Al foam,powder metallurgy,porosity
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Materials Research
Dergi ISSN 1516-1439
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2014
Cilt No 17
Sayı 2
Sayfalar 311 / 315
Doi Numarası 10.1590/S1516-14392014005000006
Makale Linki http://www.scielo.br/scielo.php?script=sci_arttextpid=S1516-14392014000200004lng=ennrm=isotlng=en