THE INFLUENCE OF THE CARBURIZING PROCESS ON THE IMPACT-SLIDING WEAR BEHAVIOR OF 14NiCr14 STEEL

Year 2024, , 1 - 8, 15.06.2024

Ömer Faruk Çoşkun , Ayşenur Eğercioğlu , Gökhan Özdemir , Harun Mindivan

https://doi.org/10.55696/ejset.1375016

Abstract

Weapons depend largely on the barrel. Gunpowder combustion converts chemical energy into thermal and mechanical energy. Barrels give projectiles initial speed and flight direction, and helical grooves require fast spinning for stability while moving toward the target. Due of barrel exposure to heat, high pressures, gunpowder vapors, and external impacts, this weapon element needs extensive investigation. The study discusses carburizing for surface modification in high-pressure circumstances to improve gun barrel interior line tribology. Carburizing has been detected at a depth of 960 μm from the surface, as revealed by light-optical microscope images. The microhardness test has been performed on the sample's cross section, which has a maximal hardness of 650 ± 10 HV0.05 close to the surface and 250 ± 5 HV0.05 close to the interface. At room temperature (RT), this study looked at how the carburizing process affects the impact-sliding wear performance of 14NiCr14 steel, which is widely used in the barrel extensions of guns under complex loading conditions. A series of impact-sliding wear experiments were conducted on 10 mm-diameter bearing steel balls made of 52100-grade steel, for a total of 4297 loading cycles. A 2-D contact profilometer and a light optical microscope (LOM) then examined the wear tracks that had formed on the samples. The carburized steel caused a decrease in the wear rate at the impact and sliding zones of the wear track.

Keywords

Barrel extension, Depth of diffusion layer, Surface damage, Surface hardening, Steel

Supporting Institution

Bilecik Şeyh Edebali Üniversitesi, Ata Silah San. A.Ş.

Thanks

The financial support of the research foundation of Bilecik Seyh Edebali University (Project No.: 2023-01.BŞEÜ.03-01) is gratefully acknowledged. We would like to acknowledge Unal Colak for his technical assistance.

References

• M. Polášek, M. Krbaťa, M. Eckert, P. Mikuš, R. Cíger, “Contact Fatigue Resistance of Gun Barrel Steels”, Procedia Structural Integrity, vol. 43, pp. 306-311, 2023.
• A.Y. Albagachiev, M. E. Stavroskii, M. I. Sidorov, “Tribological Wear-Preventive Coatings”, Journal of Machinery Manufacture and Reliability, vol. 49, no. 1 Mar., pp. 57-63, 2020.
• I. Barényi, J. Šandora, “Trends in Mechanical Properties Enhancing of Steels Used for Gun Barrels Production”, University Review, vol. 8, no. 3-4, pp. 23-28, 2014.
• M. Jakopčić, D. Landek, “Abrasion Resistance of Surface-Modified Steels Used For Artillery Weapon Barrels”, Transactions of Famena Xli-1, vol. 41, no. 1, Apr., pp. 15-20, 2017.
• V. F. Da Silva, L. F. Canale, D. Spinelli, W.W. Bose-Filho, O.R. Crnkovic, “Influence of Retained Austenite on Short Fatigue Crack Growth and Wear Resistance of Case Carburized Steel”, Journal of Materials Engineering and Performance, vol. 8, pp. 543-548, 1999.
• H. Mohrbacher, “Metallurgical Concepts for Optimized Processing and Properties of Carburizing Steel”, Advances in Manufacturing, vol. 4(2), pp. 105-114. 2016.
• A. Arulbrittoraj, P. Padmanabhan, M. Duraiselvam, R. Srinivasan, G. Ebenezer, “The Effect of Sliding Wear Parameters on Carburized AISI1040 Steel”, Journal of Mechanical Science and Technology, vol. 30, pp. 1825-1833, 2016.
• P. Shukla, S. Awasthi, J. Ramkumar, K. Balani, “Protective Trivalent Cr-Based Electrochemical Coatings for Gun Barrels”, Journal of Alloys and Compounds, vol. 768, Nov., pp.1039-1048, 2018.
• S. Li, L. Wang, G. Yang, “Surface Damage Evolution of Artillery Barrel Under High-Temperature Erosion and High-Speed Impact”, Case Studies in Thermal Engineering, vol. 42, 102762, 2023.
• D. Dobrocký, P. Maňas, Z. Pokorný, Z. Studený, “The Influence of Plasma Nitriding Process on Mechanical Properties of 14NiCr14 Steel”, Solid State Phenomena, vol. 258, Dec., pp. 542-545, 2017.
• Y.Nie, J.Zhang, “Cyclic Impact-Sliding Fatigue Wear Testing Instrument”, US Patent No. 8,402,811, https://patents.google.com/patent/US8402811B2/en, 2013.
• M. Izciler, M. Tabur, “Abrasive Wear Behavior of Different Case Depth Gas Carburized AISI 8620 Gear Steel”, Wear, vol. 260, pp. 90-98, 2006.
• S. Ates, O. Aslan, M. Tümer, C.F. Arisoy, “Impact Sliding Wear Behavior of Stellite 6 And Stellite 12 Hardfacings”, Materials Chemistry and Physics, vol. 313, 128762. 2024.
• D. Dobrocky, Z. Joska, Z. Studeny, Z. Pokorny, E. Svoboda, “Quality Evaluation of Carburized Surfaces of Steels Used in Military Technology”, Manufacturing Technology, vol. 20 (2), pp. 152-161, 2020.
• P. Zhang, F C. Zhang, Z.G. Yan, T.S. Wang, L.H. Qian, “Wear Property of Low-Temperature Bainite in the Surface Layer of a Carburized Low Carbon Steel”, Wear, vol. 271(5-6), pp. 697-704, 2011.