INFLUENCE OF BATH COMPOSITION ON THE STRUCTURE AND PROPERTIES OF NICKEL COATINGS PRODUCED BY ELECTRODEPOSITION TECHNIQUE

Öz

Electrodeposited nickel coatings are extensively used in engineering applications due to their excellent corrosion and wear resistance and easy mechanical operation. The structural characteristics, corrosion and mechanical properties of nickel coatings are related to the deposition parameters; such as bath component, composition, current density, pH, deposition time and additives. Electrodeposition technique is one of the most technologically feasible and economical techniques for producing metallic coatings. Watts bath is the most commonly applied nickel electrodeposition bath. Aim of this study is to optimize Watts bath composition by changing nickel chloride concentration and to investigate structural, morphological, corrosion and mechanical properties of produced coatings. It was found that coatings prepared with 0.17M nickel chloride concentration in Watts bath present the better corrosion resistance and mechanical property. Banyo Kompozisyonunun Elektroçöktürme Yöntemi ile Üretilen Nikel Kaplamaların Yapısı ve Özelliklerine Etkisi

Anahtar Kelimeler

• Nickel coating, Watts bath, Electrodeposition, Surface properties, Corrosion

BANYO KOMPOZİSYONUNUN ELEKTROÇÖKTÜRME YÖNTEMİ İLE ÜRETİLEN NİKEL KAPLAMALARIN YAPISI VE ÖZELLİKLERİNE ETKİSİ

Öz

Elektroçöktürülmüş nikel kaplamalar mükemmel korozyon ve aşınma dayanımları ve mekanik olarak kolay işlenebilirlikleri sebebi ile mühendislik uygulamalarında yaygın olarak kullanılmaktadır. Nikel kaplamaların yapısal karakteristikleri, korozyon kompozisyonları, akım yoğunluğu, pH, kaplama süresi ve katkılar gibi kaplama parametrelerine bağlıdır. Elektroçöktürme tekniği metalik kaplamaların üretiminde kullanılan teknolojik olarak en uygulanabilir ve ekonomik yöntemlerden birisidir. Watts banyosu nikelin elektroçöktürülmesinde en yaygın olarak kullanılan banyodur. Bu çalışmanın amacı nikel klorür konsantrasyonunun değiştirilmesi ile Watts banyo kompozisyonunu optimize edilmesi ve üretilen kaplamaların yapısal, morfolojik, korozyon ve mekanik özelliklerinin konsantrasyonuna sahip Watts banyosu ile hazırlanmış olan kaplamaların daha iyi korozyon direncine ve mekanik özelliğe sahip olduğu bulunmuştur

Anahtar Kelimeler

• Nikel kaplama, Watts banyosu, Elektroçöktürme, Yüzey özellikleri, Korozyon

Kaynakça

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