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Microstructural and wear characteristics of High Velocity Oxygen Fuel HVOF sprayed NiCrBSi SiC composite coating on SAE 1030 steel       
Yazarlar
Soner Buytoz
Fırat Üniversitesi, Türkiye
Mustafa Ulutan
Eskişehir Osmangazi Üniversitesi, Türkiye
Prof. Dr. Serkan ISLAK
Kastamonu Üniversitesi, Türkiye
Bülent Kurt
Nevşehir Hacı Bektaş Veli Üniversitesi, Türkiye
Osman Nuri Çelik
Eskişehir Osmangazi Üniversitesi, Türkiye
Özet
In this paper, wear properties of NiCrBSi-SiC coatings were investigated using the ball-on-disk wear test. In experimental study, NiCrBSi-SiC powders were sprayed using a high-velocity oxygen fuel technique on an SAE 1030 steel substrate. Powder mixtures with different weight mixing ratios, NiCrBSi + 10 wt% SiC, NiCrBSi + 20 wt% SiC and NiCrBSi + 40 wt% SiC coatings were prepared. The deposited coatings are compared in terms of their phase composition, microstructure and hardness. It is proved that the degree of mixing of the NiCrBSi and SiC components in the powder has a massive effect on the phase composition, microstructure and hardness of the coatings. Wear tests were conducted on both the uncoated and coated substrates at same normal load, speed, and wear distance. It has been determined that the coated substrates exhibit a very good tribological performance in comparison to the uncoated substrate. The increase in the adhesive wear resistance provided by the coating has been attributed to the presence of a large amount of dispersed Ni and Cr carbide and/or borides in the Ni matrix. © 2013 The Author(s).
Anahtar Kelimeler
HVOF | NiCrBSi-based coating | SiC powder | Wear performance
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
Dergi ISSN 1319-8025
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 06-2013
Cilt No 38
Sayı 6
Sayfalar 1481 / 1491
Doi Numarası 10.1007/s13369-013-0536-y