Farklı İş Çevrimlerinde Akımlı Yöntemle Üretilen Ni-P-GO Kaplamaların Özelliklerinin İncelenmesi

Öz

Gelişen teknoloji günümüz şartlarında farklı malzeme yapıları kullanma gereksinimde beraberinde getirmiştir. Malzeme üzerinde meydana gelen elektrokimyasal reaksiyonlar malzemelerde olumsuz etkiler yaratmaktadır. Farklı mühendislik disiplinleri bu konular üzerinde çalışmaktadır. Malzemede bozulmalar yüzeyde başlar. Yüzeyi iyi olan bir malzemede gerek korozyon gerekse aşınma direnci oldukça yüksek olur. Yüzey özelliklerini geliştirmenin en makul yollarından birisi de kaplama uygulamasıdır. Kaplanan yüzey, kaplandığı metalden çok daha iyi özelliklere sahip olabilir. Uzun yıllar boyunca bu amaç için krom (Cr) kaplamalar tercih edilmiştir. Ancak çevreci yaklaşımların ön plana çıkması ile krom kaplamalara alternatif olarak elektrolitik kaplamalar oldukça başarılı bir şekilde geliştirilmiş ve uygulanmaya başlanmıştır. Bu çalışmada oksidasyon direnci düşük olan alüminyum yüzeyi akımlı yöntemle Ni-P-GO kaplanmış ve elektrokimyasal özelliği başta olmak üzere inceleme yapılmıştır. GO son yıllarda oldukça popüler olan katı yağlayıcıların başında gelmektedir. Bu çalışmada Ni-P alaşım matrisine ilave edilerek oldukça iyi bir şekilde korozyon oranı değeri (yaklaşık 10 mpy’e kadar) elde edilmiştir. Farklı iş çevrimlerinde uygulama yapılmıştır ve Ton süresinin artmasıyla birlikte tane boyutu yaklaşık olarak 28 nm’e kadar düşmüştür.

Anahtar Kelimeler

• Akımlı Kaplama
• Nikel Kaplama
• Kompozit
• Korozyon Oranı
• Yüzey Morfolojisi

Investigation of the Properties of Ni-P-GO Coatings Produced by Electrodeposition Method in Different Duty Cycles

Abstract

Developing technology has brought with it the need to use different material structures in today's conditions. Electrochemical reactions occurring on the material create negative effects on the materials. Different engineering disciplines are working on these issues. Deterioration in the material starts on the surface. In a material with a good surface, both corrosion and wear resistance will be quite high. One of the most reasonable ways to improve surface properties is coating application. The coated surface can have much better properties than the metal it is coated on. For many years, chrome (Cr) coatings have been preferred for this purpose. However, with the prominence of environmentalist approaches, electrolytic coatings have been successfully developed and started to be applied as an alternative to chrome coatings. In this study, the aluminum surface with low oxidation resistance was coated with Ni-P-GO using the current method and the electrochemical properties were examined. GO is one of the most popular solid lubricants in recent years. In this study, a very good corrosion rate value (up to about 10 mpy) was obtained by adding Ni-P to the alloy matrix. It was applied in different work cycles and the grain size decreased to approximately 28 nm with the increase of Ton time.

Keywords

• Akımlı Kaplama
• Nikel Kaplama
• Kompozit
• Korozyon Oranı
• Yüzey Morfolojisi

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