The tribological properties of A356-SiCp metal-matrix composites fabricated by thixomoulding technique
Küçük Resim Yok
Tarih
2012
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Walter De Gruyter & Co
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, A356-SiCp metal-matrix composites were produced through thixomoulding process, and these composites were subjected to wear tests. The composites containing various volume fractions of SiCp particles (5%, 10%, 15% and 20%) as the reinforcement were produced at two different temperatures of 590 degrees C and 600 degrees C. The influences of processing temperatures and reinforcement ratio on the properties and wear behaviour of the composites were investigated. Prior to the wear tests, microstructural properties and hardness of the composites were determined. For the wear tests, a pin-on-disc-type wear apparatus was employed to carry out the wear tests. The wear tests were carried out at 2.0 m/s sliding speed under 15 N load and for four different sliding distances. A scanning electron microscope (SEM) was used to examine the wear mechanisms on the worn surfaces of the composites. The results indicated that sphericity rate and hardness of the composites produced at 590 degrees C were higher than those of the composites produced at 600 degrees C. In addition, the composites produced at 590 degrees C exhibited lower weight loss and friction coefficient.
Açıklama
Anahtar Kelimeler
Al/SiC composite, thixomoulding, tribological properties
Kaynak
Science and Engineering of Composite Materials
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
19
Sayı
4
