Investigation of oxidation and hot corrosion behavior of manganese slag coatings

Abstract

In this study, the oxidation and hot corrosion behaviors of the manganese slag coating system were investigated. Manganese slag is a waste product generated during metal extraction and is used to reduce environmental impacts and raw material consumption. CoNiCrAlY bond coatings were produced using the high-velocity oxygen fuel (HVOF) technique, and manganese slag coatings were produced using the atmospheric plasma spraying (APS) process. The produced coatings were subjected to isothermal oxidation (5 h, 25 h, 50 h, and 100 h) and hot corrosion tests (1 h, 3 h, 5 h, and 10 h) at 600 degrees C. As a result of the analyses, it was determined that the coating system containing manganese slag maintained its durability at certain temperatures and times without structural degradation. The findings show that manganese slag coating system is a potential alternative for different industrial applications. This study highlights the innovative uses of waste materials in surface engineering and their performance in high temperature-based processes.