Investigation of microstructure and mechanical properties of steel fibre-cast iron composites
Yükleniyor...
Dosyalar
Tarih
2005
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
TAYLOR & FRANCIS LTD
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The aim of the present experimental study was to investigate improvement of the toughness and strength of grey cast iron by reinforcing with steel fibres. The carbon content of the steel fibres was chosen to be sufficiently low that graphite flakes behaving as cracks were removed by carbon diffusion from the cast iron to the steel fibres during the solidification and cooling stages. To produce a graphite free matrix, steel fibres with optimum carbon content were used and the reinforced composite structure was cast under controlled casting conditions and fibre orientation. Three point bend test specimens were manufactured from steel fibre reinforced and unreinforced flake graphite cast iron and then normalising heat treatments were applied to the specimens at temperatures of 800 and 850 degrees C. The fracture toughness and strength properties of the steel fibre reinforced material were found to be much better than those of unreinforced cast iron. The microstructures of the composite at the fibre-matrix transition zone were examined.
Açıklama
Anahtar Kelimeler
metal matrix composites, mechanical properties, fracture toughness, casting, microstructure, steel fibre
Kaynak
MATERIALS SCIENCE AND TECHNOLOGY
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
21
Sayı
9
