Production and characterization of boron carbide and silicon carbide reinforced copper-nickel composites by powder metallurgy method
Yazarlar (1)
Doç. Dr. Mehmet Akkaş Kastamonu Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
Dergi ISSN 0933-5137 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 01-2021
Kabul Tarihi Yayınlanma Tarihi 01-01-2021
Cilt / Sayı / Sayfa 52 / 1 / 32–42 DOI 10.1002/mawe.202000077
Makale Linki https://onlinelibrary.wiley.com/doi/epdf/10.1002/mawe.202000077
UAK Araştırma Alanları
Toz Metalurjisi
Özet
In this study, composite samples were produced by reinforcing boron carbide and silicon carbide particles in different rates by weight into copper-nickel powder mixture using powder metallurgy method. The prepared powder mixtures were cold pressed under 600 MPa pressure and pelletized. The pelletized samples were then sintered in an atmosphere-controlled furnace. Scanning electron microscopy to determine the microstructure of the produced samples and x-ray diffraction method analysis to determine the phases forming in the structure of the produced samples were used and microhardness was taken to determine the effect of boron carbide and silicon carbide on hardness. In addition to that, the mechanical properties the transverse rupture strength were investigated using three-point bending tests. The corrosion tests were performed potentiodynamic polarization curves of the samples in 3.5 % sodium chloride solution. The highest hardness value was measured as 162 HV 0.05 in the sample reinforced with 10 % boron carbide. As the amount of silicon carbide increased, the corrosion resistance of the composite increased. Moreover, as the amount of boron carbide increased, the corrosion resistance of the composite decreased. Load-contact depth values were examined, copper-nickel+10 % silicon carbide has the highest peak depth of 48.12.
Anahtar Kelimeler
boron carbide reinforced | Copper-nickel composite | corrosion | powder metallurgy | silicon carbide reinforced