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Fabrication of Cr‐Cr 23 C 6 /Cr 2 N Composite Coatings: Change in the Phase Structure and Effect on the Corrosion Properties
Author(s) -
Sancakoglu Orkut,
Ungan Guler,
Celik Erdal,
Aksoy Tevfik
Publication year - 2014
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12257
Subject(s) - materials science , composite number , corrosion , sulfuric acid , carbide , fabrication , phase (matter) , metallurgy , conversion coating , composite material , carbon black , medicine , chemistry , alternative medicine , organic chemistry , pathology , natural rubber
Cr‐C composite coatings were electro‐codeposited in sulfuric acid‐based solutions containing submicrometer‐sized carbon black particles. The effect of heat‐treatment conditions on the carbide phase formation in the composite coatings and their corrosion behaviors were investigated. The obtained results showed that the Cr‐C composite coatings can be fabricated successfully and with an additional heat treatment, it is possible to obtain a Cr‐Cr 23 C 6 /Cr 2 N composite structure. Therefore, the increase in corrosion potential suggests improvement in corrosion resistance due to the formation of Cr 23 C 6 /Cr 2 N. This implies that Cr‐Cr 23 C 6 and/or Cr 2 N composite coatings have potential application to industrial fields in many respects.