Molibden ve Vanadyum İlavesinin Fe-Cr-C Sert Dolgu Alaşımlarının Aşınma Direncine Etkisi

Year 2021, Volume: 36 Issue: 3, 691 - 700, 30.09.2021

Nilay Çömez Canser Gül Hülya Durmuş

https://doi.org/10.21605/cukurovaumfd.1005460

Abstract

Sert dolgu kaplamalar, pek çok mühendislik uygulamasında iş parçalarının aşınma ve korozyon direncini artırmak amacıyla kullanılan yöntemlerden biridir. Bu çalışmanın amacı, karbür yapıcı elementlerden molibden ve vanadyumun Fe-Cr-C esaslı sert dolgu alaşımlarına ilave edilerek mikroyapı ve aşınma özelliklerinde meydana gelecek değişimleri incelemektir. Her kaplama hem vanadyum hem de molibden içermektedir. Fe-Cr-C alaşımlarına %3, %4 oranlarında ferromolibden, %10, %12 oranlarında ferrovanadyum ilave edilmiştir. Kaplama içeriğinin primer M7C3 (M: Fe, Cr) ve M2C (M: Mo, Fe, Cr) karbürlerinden ve matrise yayılmış ince taneli sekonder karbürlerden oluştuğu gözlenmiştir. Artan ferromolibden ve ferrovanadyum ilavesinin karbür tane boyutunu küçülttüğü tespit edilmiştir. Bununla birlikte hacimsel karbür oranı ve sertlik artış eğilimi sergilemiştir. En yüksek sertlik ve buna bağlı olarak en düşük hacimsel aşınma kaybı %4 ferromolibden +%10 ferrovanadyum ilave edilen kaplamada tespit edilmiştir.

Keywords

Kaplama, Sert dolgu, Seyrelme, Aşınma, Sertlik, Karbür

The Effect of Molybdenum and Vanadium on Wear Resistance of Fe-Cr-C Hardfacing Alloys

Abstract

Hardfacing coatings are one of the methods used in many engineering applications to increase the wear and corrosion resistance of workpieces. This study aims to examine the changes in microstructure and wear properties by adding carbide forming elements of molybdenum and vanadium together to Fe-Cr-C based hardfacing alloys. Each coating contains both vanadium and molybdenum. 3%, 4% ferromolybdenum, and 10%, 12% ferrovanadium were added to the Fe-Cr-C alloys. It was observed that the microstructure of coatings consists of primary M7C3 (M: Fe, Cr) and M2C (M: Mo, Fe, Cr) carbides and fine-grained secondary carbides dispersed in the matrix. It was observed that increasing
ferromolybdenum and ferrovanadium addition reduces the carbide grain size. However, the volumetric carbide ratio and hardness showed an increasing trend with increasing ferrovanadium and ferromolybdenum. The highest hardness and consequently the lowest volumetric wear loss was determined in the coating including 4% ferromolybdenum + 10% ferrovanadium.

Keywords

Coating, Hardfacing, Dilution, Wear, Hardness, Carbide

References

• 1. Pawar, S., Jha, A.K., Mukhopadhyay, G., 2019. Effect of Different Carbides on the WearResistance of Fe-based Hardfacing Alloys. Int. J. Refract. Met. H., 78, 288-295.
• 2. Nagentrau, M., Tobi, A.M., Sambu, M., Jamian, S., 2019. The Influence of Welding Condition on the Microstructure of WC Hardfacing Coating on Carbon Steel Substrate. Int. J. Refract. Met. H., 82, 43-57.
• 3. Balaguru, S., Abid, M., Gupta, M., 2020. Investigations on Different Hardfacing Processes for High Temperature Applications of Ni-Cr-B-Si Alloy Hardfaced on Austenitic Stainless Steel Components. Journal of Materials Research and Technology, 9(5), 10062-10072.
• 4. Balalan, Z., Mehmet, Y.A.Z., Yılmaz, S.O., 2017. GTAW Yöntemi ile Oluşturulan FeB-FeTi-FeW-C Kaplamalarının Mikroyapı ve Adhesiv Aşınma Davranışının İncelenmesi. Fırat Üniversitesi Mühendislik Bilimleri Dergisi, 29(2), 203-212.
• 5. Zahiri, R., Sundaramoorthy, R., Lysz, P., Subramanian, C., 2014. Hardfacing Using Ferro-alloy Powder Mixtures by Submerged Arc Welding. Surf. Coat. Tech., 260, 220-229.
• 6. Qi, X., Jia, Z., Yang, Q., Yang, Y., 2011. Effects of Vanadium Additive on Structure Property and Tribological Performance of High Chromium Cast Iron Hardfacing Metal. Surf. Coat. Tech., 205(23-24), 5510-5514.
• 7. Dilawary, S.A.A., Motallebzadeh, A., Houdková, Š., Medlin, R., Haviar, S., Lukáč, F., Afzal, M., Cimenoglu, H., 2018. Modification of M2 Hardfacing: Effect of Molybdenum Alloying and Laser Surface Melting on Microstructure and Wear Performance. Wear, 404, 111-121.
• 8. Wang, X., Han, F., Liu, X., Qu, S., Zou, Z., 2008. Microstructure and Wear Properties of the Fe-Ti-V-Mo-C Hardfacing Alloy. Wear, 265(5-6), 583-589.
• 9. Lin, C.M., Chang, C.M., Chen, J.H., Wu, W., 2010. The Effects of Additive Elements on the Microstructure Characteristics and Mechanical Properties of Cr–Fe–C Hard-Facing Alloys. J. Alloy. Compd., 498(1), 30-36.
• 10. Deng, H., Shi, H., Tsuruoka, S., 2010. Influence of Coating Thickness and Temperature on Mechanical Properties of Steel Deposited with Co-based Alloy Hardfacing Coating. Surf. Coat. Tech., 204(23), 3927-3934.
• 11. Rovatti, L., Lemke, J.N., Lecis, N.O.R.A., Stejskal, O., Vedani, M., 2015. Effect of Dilution on Microstructure and Wear Resistance of a Fe-based Hardfacing Alloy with a High Amount of Carbide-forming Elements. Conference Papers in Science, 2015, Article ID 276374, Hindawi
• 12. Singh, M., Majid, M., Akhtar, M.A., Arora, H., Chawla, K., 2017. Wear Behaviour of SMAW Hardfaced Mild Steel and Influence of Dilution Upon Hardfacing Properties. International Journal of Mechanical Engineering and Technology, 8(7), 1652-1661.
• 13. Liu, D., Wang, J., Zhang, Y., Kannan, R., Long, W., Wu, M., Wang, Y., Li, L., 2019. Effect of Mo on Microstructure and Wear Resistance of Slag-free Self-shielded Metal-Cored Welding Overlay. J. Mater. Process. Tech., 270, 82-91.
• 14. Sabet, H., Khierandish, S., Mirdamadi, S., Goodarzi, M., 2011. The Microstructure and Abrasive Wear Resistance of Fe–Cr–C Hardfacing Alloys with the Composition of Hypoeutectic, Eutectic, and Hypereutectic at Cr/C= 6. Tribol. Lett., 44(2), 237-245.
• 15. Higuera-Cobos, O.F., Dumitru, F.D., Mesa-Grajales, D.H., 2016. Improvement of Abrasive Wear Resistance of the High Chromium Cast Iron ASTM A-532 Through Thermal Treatment Cycles. Revista Facultad de Ingeniería, 25(41), 93-103.
• 16. Wang, X.H., Han, F., Liu, X.M., Qu, S.Y., Zou, Z.D., 2008. Effect of Molybdenum on the Microstructure and Wear resistance of Fe-based Hardfacing Coatings. Mat. Sci. Eng. A-Struct., 489(1-2), 193-200.
• 17. Cruz-Crespo, A., Fernández-Fuentes, R., Ferraressi, A.V., Gonçalves, R.A., Scotti, A., 2016. Microstructure and Abrasion Resistance of Fe-Cr-C and Fe-Cr-C-Nb Hardfacing Alloys Deposited by S-FCAW and Cold Solid Wires. Soldagem & Inspeção, 21(3), 342-353.
• 18. Zhou, Y.F., Yang, Y.L., Li, D., Yang, J., Jiang, Y.W., Ren, X.J., Yang, Q.X., 2012. Effect of Titanium Content on Microstructure and Wear Resistance of Fe-Cr-C Hardfacing Layers. Weld. J., 91(8), 229-235.
• 19. Chotěborský, R., Hrabě, P., Müller, M., Savková, J., Jirka, M., 2008. Abrasive Wear of High Chromium Fe-Cr-C Hardfacing Alloys. Research in Agricultural Engineering, 54(4), 192-198.
• 20. İrizalp, S.G., Saklakoğlu, N., İldaş, G., Demirok, S., 2018. 1.2714 Çeliği Üzerine Sert Dolgu Kaynağı ile Kaplanmış Fe-Cr-V Esaslı Alaşımın Malzeme Özelliklerinin İncelenmesi. Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi, 33(1), 35-46.
• 21. Królicka, A., Szczepański, Ł., Konat, Ł., Stawicki, T., Kostencki, P., 2020. The Influence of Microstructure on Abrasive Wear Micro-mechanisms of the Claddings Produced by Welding Used in Agricultural Soil. Materials, 13(8), 1920
• 22. Venkatesh, B., Sriker, K., Prabhakar, V.S.V., 2015. Wear Characteristics of Hardfacing Alloys: State-of-the-art. Procedia Materials Science, 10, 527-532.