Effect of temperature on the microstructure of hot pressed Co based Co-Cr-Mo alloy
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Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Natl Inst Optoelectronics
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, biocompatible Co-based Co-Cr-Mo alloy powder produced by direct-resistant hot-pressing technique at different temperatures. The effect of pressing temperature on microstructure and mechanical properties of the samples produced were determined. The powder consisting Of 67.5% Co (99.5% purity-325mesh), 27.5% Cr (99% purity-325mesh) and 5% Mo (purity 99.95%-325mesh) was homogeneously mixed by the adding polyethylene glycol lubricant. The powder mixtures prepared were directly hot pressed under 115 bar at 750, 800, 850, 900 C for 5 minutes. Density, microstructure and some mechanical characteristics of the samples produced were investigated. The density of the sintered specimens increased with the temperature, except the specimen at 850 C in which porosity increased, due to the local microstructural segregation.
Açıklama
Anahtar Kelimeler
Hot Pressing, Orthopedic Implants, Co-Cr-Mo Alloy, Powder Metallurgy
Kaynak
Optoelectronics and Advanced Materials-Rapid Communications
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
7
Sayı
9-10
