MECHANICAL AND TRIBOLOGICAL BEHAVIOUR OF B4C REINFORCED AlSi12-XMg MATRIX COMPOSITES
Küçük Resim Yok
Tarih
2015
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Scibulcom Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, mechanical and tribological behaviours of composites produced by using pressure infiltration method were investigated. Preforms were prepared by using B4C particles with an average grain size of 45 mu m and a volume rate of 60%. Four different matrixes produced by adding different proportions (0, 1, 2 and 4 wt.%) of Mg to AlSi12 aluminium alloy were melted at 800 degrees C and infiltrated to the preform with a pressure of 8 bars. Results whose microstructure characterisation was conducted by using light optical (LOM) and scanning electron (SEM) microscope were supported with X-ray diffraction (XRD) analyses. With the increasing addition of Mg, hardness values and compressive strength increased. This improvement in mechanical properties improved the wear resistance. While the lowest weight loss was achieved with the addition of 4% Mg in low loads as a result of wear tests, the best wear resistance in high loads was observed in composites produced with the addition of 1% Mg.
Açıklama
Anahtar Kelimeler
AlSi12-Mg alloy, AlSi12-B4C composites, mechanical properties, wear resistance
Kaynak
Journal of the Balkan Tribological Association
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
21
Sayı
4
