TiB2-VC Tozu ile Kaplanan St52 Çeliğinin Mikroyapı ve Aşınma Davranışlarının İncelenmesi

Yıl 2025, Cilt: 11 Sayı: 1, 164 - 175, 30.06.2025

Musa Kılıç , Anıl İmak , İhsan Kırık

https://doi.org/10.29132/ijpas.1707490

Öz

Çeliklerde aşınmaya bağlı olarak zamanla hasarlar meydana gelmektedir. Bu hasarlar kaplama yöntemleri ile giderilebilir. Bu çalışmada yüzey aşınma direnci düşük St 52 çelik yüzeyi TiB2 matris içerisinde ağırlıkça %1 ve %5 VC (Vanadyum Karbür) ilave edilerek hazırlanan TiB2-VC karışım tozu kullanılarak TIG(Tungsten Inert Gas) yöntemi ile kaplanmıştır. Kaplama ve alt tabaka arasında mükemmel bir ara yüz oluşması metalurjik olarak iyi bir bağlanmanın gerçekleştiğini göstermektedir. Oluşan karbür ve borür fazlarının sayesinde mikrosertlik değeri ve aşınma direnci artmıştır. Mikro-sertlik ölçümlerinde C2 numunesinde kaplama bölgesinde 1291 HV0.5, C1 numunesinde ise kaplama bölgesinde 1193 HV0.5 ölçülmüştür. Aşınma di-renci mikrosertlik artışı ile bağlantılı olarak en düşük C2 numunesinde elde edilmiştir.

Anahtar Kelimeler

St52 , TIG , TiB2-VC , Mikroyapı , Aşınma

Investigation of Microstructure and Wear Behavior of St52 Steel Coated with TiB2-VC Powder

Öz

In steels, damage occurs over time due to wear. These damages can be repaired using coating methods. In this study, the surface of St 52 steel, which has low wear resistance, was coated using the TIG (Tungsten Inert Gas) method with a TiB₂-VC mixed powder. This powder was prepared by adding 1% and 5% VC into a TiB₂ matrix. A perfect interface formed between the coating and the substrate, indicating a good metallurgical bond. Due to the formation of carbide and boride phases, microhardness and wear resistance increased. In microhardness measurements, the coating region of sample C2 had a value of 1291 HV0.5, while the coating region of sample C1 showed 1193 HV0.5. As a result of the increase in microhardness, the highest wear resistance was obtained in sample C2.

Anahtar Kelimeler

St52 , TIG , TiB2-VC , Microstructure , Wear

Kaynakça

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