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Microstructure and microhardness characterization of Cr3C2 SiC Coatings Produced Using the Plasma Transferred Arc Method       
Yazarlar
Prof. Dr. Serkan ISLAK Prof. Dr. Serkan ISLAK
Kastamonu Üniversitesi, Türkiye
Dr. Öğr. Üyesi Özkan ESKİ Dr. Öğr. Üyesi Özkan ESKİ
Kastamonu Üniversitesi, Türkiye
Soner Buytoz
Fırat Üniversitesi, Türkiye
Joseph Stokes
Özet
The purpose of this work was to investigate the coatings made of Cr 3C2 and SiC powder manufactured on AISI 304 stainless steel applied by the plasma transferred arc (PTA) welding process. SiC content in the produced coated layer was varied between 0-100 wt. % and the effect of SiC concentration on the microstructure and hardness of the coating was measured experimentally. SEM analyses revealed that the composite coatings had a homogeneous, nonporous, and crack-free microstructure. Dendrites and interdendrite eutectics formed on the coating layer, subject to the temperature gradient and the solidification ratio. There was a significant increase in the hardness of coating layers with the effect of the γFe,Ni), Cr 7C3, Cr23C6, Fe5C 2, Cr3Si, CrSi2, Fe0.64Ni 0.36, CFe15.1, C-(Fe,Cr)-Si phases formed in the microstructure. In comparison to the substrate, the microhardness of the coatings produced by PTA were 2.5-3.5 times harder.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı MATERIALS TESTING
Dergi ISSN 0025-5300
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2012
Cilt No 54
Sayı 11
Sayfalar 793 / 799
Doi Numarası 10.3139/120.110397