Examination of corrosive wear performances of thermochemically treated cementation steels

Yıl 2023, Cilt: 4 Sayı: 2, 33 - 38, 08.12.2023

Ali Yağız Şahin , Muhammet Emre Turan

Öz

Rapidly developing surface development techniques in recent years positively affect mechanical properties of machinery such as fatigue and hardness, and surface properties such as wear and corrosion. In this study, the carbonitriding process was applied to low-carbon case cementation steel. After the process, their microstructures were examined with an optical microscope and scanning electron microscope. Wear tests were carried out under different loads in both dry and corrosive environments and compared with the sample without heat treatment. As a result of the carbonitriding process, up to four times an increase in hardness was observed compared to the sample that was not subjected to any thermochemical treatment. When looking at the coating thickness, it was observed that homogeneity was achieved and a thickness of 42 microns was reached. Wear performance was improved two times in the dry environment and a similar improvement was seen in the corrosive environment.

Anahtar Kelimeler

Carbonitriding, Cementation steel, Corrosive wear

Termokimyasal işlem uygulanmış sementasyon çeliklerinin korozif aşınma performanslarının incelenmesi

Öz

Son yıllarda hızla gelişen yüzey geliştirme teknikleri makina teçhizatlarının yorulma ve sertlik gibi mekanik özellikleri ile aşınma ve korozyon gibi yüzey özelliklerini pozitif yönde etkilemektedir. Bu çalışmada, düşük karbonlu sementasyon çeliğine karbonitrasyon işlemi uygulanmıştır. İşlemden sonra mikroyapıları optik mikroskop ve taramalı electron mikroskopuyla incelenmiştir. Aşınma testleri hem kuru ortamda hem de korozif ortamda farklı yükler altında uygulanmış ve ısıl işlemsiz numuneyle kıyaslanmıştır. Karbonitrasyon işlemi neticesinde herhangi bir termokimyasal işleme tabii tutulmayan numuneye göre dört kata yakın sertlik artışı görülmüştür. Kaplama kalınlığına bakıldığında, homojenliğin sağlandığı ve 42 mikronluk kalınlığa ulaşıldığı gözlemlenmiştir. Aşınma performansı kuru ortamda iki kat geliştirilmiş ve korozif ortamda da benzer bir iyileşme görülmüştür.

Anahtar Kelimeler

Karbonitrasyon, Sementasyon çeliği, Korozif aşınma

Kaynakça

• 1. Arumparithy, G. L., Adalarasan, R., Santhanakumar, M., and Mulugeta, L., "Parameter Design in Carbonitriding of EN36, 16MnCr5, and AISI 4140 Steels Using Principal Component-Based Grey Incidence (PGI)", Advances In Materials Science And Engineering, 2022: (2022).
• 2. Binder, M., Stapff, V., Heinig, A., Schmitt, M., Seidel, C., and Reinhart, G., "Additive manufacturing of a passive, sensor-monitored 16MnCr5 steel gear incorporating a wireless signal transmission system", Procedia CIRP, 107: 505–510 (2022).
• 3. Arumparithy, G. L., Adalarasan, R., Santhanakumar, M., Balaji, N., and Asres, Y., "Investigation in Gas Carburizing of AISI 4140, EN36, and 16MnCr5 Steels Using the Grey Incidence-Based Taguchi (GIBT) Method", Advances In Materials Science And Engineering, 2022: (2022).
• 4. Vivek, C., "Influence of carburizing and carbonitriding in 16MnCr5 to enhance mechanical properties", International Journal Of Innovations In Engineering And Technology (IJIET), 7 (3): 261–266 (2016).
• 5. Calik, A., Ucar, N., and Yeniay, N., "A Study of Boronizing Kinetics and Its Effect on the Structure and Mechanical Properties of Steel 16MnCr5", Metal Science And Heat Treatment, 64 (1): 63–68 (2022).
• 6. Şahin, A. Y., "Termokimyasal İşlemlerin 16MnCr5 Sementasyon Kangal Çeliklerinin Farklı Çaplardaki Mekanik Özelliklerine Etkisinin İncelenmesi", Master Thesis, Karabuk University (2022).
• 7. Kocúrová, K., Dománková, M., and Hazlinger, M., "The influence of carbonitriding process on microstructure and mechanical properties of micro-alloyed steel", Metalurgija, 52 (1): 19–22 (2013).
• 8. Skakov, М., Kurbanbekov, S., Tabieva, Y., and Zamanbekuly, E., "Nitriding and carbonitriding influence on stainless steels surface layers changes", Applied Mechanics And Materials, 379: 105–109 (2013).
• 9. Dobrockỳ, D., Pokornỳ, Z., Studenỳ, Z., and Šurláková, M., "Influence of the carbonitriding to change the surface topography of 16MnCr5 steel", Proceedings Of The METAL, (2017).
• 10. C. Vivek, Investigating the fracture behaviour of carburized and carbonitrided 16MnCr5, IOP Conf. Ser. Mater. Sci. Eng. 764 (2020) 012004. https://doi.org/10.1088/1757-899X/764/1/012004.
• 11. S. Pawęta, M. Galeziewska, A. Rewers, P. Pawęta, B. Szternal, R. Pietrasik, Low‐Pressure Nitrocarburizing in Standard Vacuum Furnaces—Preliminary Studies, Adv. Eng. Mater. (2023) 2301166. https://doi.org/10.1002/adem.202301166.
• 12. T. Mukhacheva, S. Kusmanov, I. Tambovskiy, P. Podrabinnik, A. Metel, R. Khmyrov, M. Karasev, I. Suminov, S. Grigoriev, Tribological properties of carbon tool steel surface after plasma electrolytic nitrocarburizing, (2023). https://www.preprints.org/manuscript/202310.1166 (accessed December 5, 2023).
• 13. Puspitasari, P., Andoko, A., Suryanto, H., Risdanareni, P., and Yudha, S., "Hardness improvement on low carbon steel using pack carbonitriding method with holding time variation", MATEC Web Of Conferences, 101: 01012 (2017).
• 14. Krishna, A. R. S., Krishna, B. V., Harshith, D., Sashank, T., and Subbiah, R., "Investigation of Mechanical Properties of AISI 316 Stainless Steel by Carbonitriding Process", E3S Web Of Conferences, 184: 01018 (2020).