Effect of Al enrichment by pack cementation of FeCr coatings deposited by HVOF

A. Bellucci (Corresponding Author), S. Bellini, R. Pileggi, D. Stocchi, Satu Tuurna

    Research output: Contribution to journalArticleScientificpeer-review

    5 Citations (Scopus)

    Abstract

    A great contribution to CO2 emissions comes from coal fired power generation. Combination of carbon capture sequestering technologies with sustainable biomass conversion constitutes a decisive boost in limiting rise in global temperature. Co-firing alternative materials with pulverized coal and using oxy-fuel combustion conditions (oxy-fuel co-combustion) is a very attractive process for power industry. Materials with both high mechanical properties and high environmental resistance are required by such advanced combustion systems. One approach to improve high-temperature oxidation/corrosion resistance is to apply protective coatings. In the present work, low and high Cr content Fe-based alloys have been deposited in order to investigate the influence of Cr content on coating protective performance in oxy-fuel co-combustion conditions. Grade 91 steel has been assumed as reference substrate. Effect of Al enrichment on coating environmental resistance has also been analyzed. Activities have been performed within the framework of Macplus Project (Integrated Project co-founded by the European Commission under the 7th Framework Program in the Energy area).
    Original languageEnglish
    Pages (from-to)244-251
    JournalJournal of Thermal Spray Technology
    Volume24
    Issue number1-2
    DOIs
    Publication statusPublished - Jan 2015
    MoE publication typeA1 Journal article-refereed

    Keywords

    • boiler materials
    • corrosion protection
    • protective coatings
    • carbon dioxide
    • coal combustion
    • bioconversion

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