CoMoCrSi ile Kaplanmış Ferritik Paslanmaz Çeliğin Korozyon Davranışı

Ferritik paslanmaz çelikler birçok ortamda korozyona karşı oldukça dayanıklıdır. Bilindiği gibi bu dayanımı artırmanın birkaç farklı yolu vardır. Bunlardan bazıları ısıl işlem, alaşımlandırma, tasarım, inhibitör kullanımı yüzey kaplamalarıdır. Bu çalışmada, ferritik paslanmaz çelik alaşım yüzeyine plazma püskürtme kaplama yöntemi kullanılarak, CoMoCrSi tozu 600 A akım şiddetinde kaplanmıştır. Kaplamasız ve kaplama uygulanan numuneler üçlü elektrot sisteminde korozyon deneylerine tabi tutulmuştur. Tafel eğrilerinden korozyon hızı hesaplanmıştır. Sonuç olarak yapılan kaplamanın ferritik paslanmaz çeliğin korozyon direncini çok iyi artırdığı tespit edilmiştir.

Corrosion Behavior of Ferritic Stainless Steel Coated with CoMoCrSi

Ferritic stainless steels are highly resistant to corrosion in many environments. As is known, there are several different ways to increase this strength. Some of these are heat treatment, alloying, design, use of inhibitors, surface coatings. In this study, CoMoCrSi powder was coated on the ferritic stainless steel alloy surface using the plasma spray coating method at a current intensity of 600 A. The uncoated and coated samples were subjected to corrosion tests in the triple electrode system. The corrosion rate was calculated from the Tafel curves. As a result, it was determined that the coating increased the corrosion resistance of ferritic stainless steel satisfactorily.

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