Microstructure and Mechanical Properties of 15CDV6 Steel in TIG-Welded Aircraft Truss Structures
Vol 42 No 1 (2025), Articles
Vol 42 No 1 (2025)

Microstructure and Mechanical Properties of 15CDV6 Steel in TIG-Welded Aircraft Truss Structures

Articles
https://doi.org/10.7862/rm.2025.6
Published March 12, 2025
Maciej Motyka
Faculty of Mechanical Engineering and Aeronautics, Rzeszów University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszów, Poland
https://orcid.org/0000-0002-9127-2487
Edward Rejman
Faculty of Mechanical Engineering and Aeronautics, Rzeszów University of Technology, 12 Powstancow Warszawy Ave., 35-959 Rzeszów, Poland
Paweł Bałon
1. Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, 30 Mickiewicza Ave., 30-059 Cracow, Poland; 2. SZEL-TECH Sp. z o.o., ul. Sołtyka 16, 39-300 Mielec, Poland
https://orcid.org/0000-0003-3136-7908
Bartłomiej Kiełbasa
SZEL-TECH Sp. z o.o., ul. Sołtyka 16, 39-300 Mielec, Poland
https://orcid.org/0000-0002-3116-2251
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Keywords

airframe
welded tube structure
15CDV6 steel
microstructure
mechanical properties

How to Cite

Motyka, M., Rejman, E., Bałon, P., & Kiełbasa, B. (2025). Microstructure and Mechanical Properties of 15CDV6 Steel in TIG-Welded Aircraft Truss Structures. Advances in Mechanical and Materials Engineering, 42(1), 71-78. https://doi.org/10.7862/rm.2025.6
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Abstract

Despite the undisputed dominance of composite materials in the construction of lightweight aircraft, steel structures still find use - especially for engine mounts. Weight reduction of the structure is achieved through the use of tubular trusses, usually made of structural steel for tempering. An increasing number of requirements for this type of construction and the development of steel metallurgy provide the basis for the introduction of new steel grades. This paper presents the testing results of a welded truss made of advanced 15CDV6 steel as a potential replacement for 30HGSA steel. The microstructure and hardness of characteristic zones of TIG-welded joints are discussed, as well as the results of static tensile testing of the parent material and welded joints.

https://doi.org/10.7862/rm.2025.6
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References

Bandyopadhyay, T. R., Rao, P. K., & Prabhu, N. (2012). Improvement in mechanical properties of standard 15CDV6 steel by increasing carbon and chromium content and inoculation with titanium during ESR. ISRN Materials Science, 2012, 572703. https://doi:10.5402/2012/572703

Chandra Sekhar, M. , Srinivasa Rao, D., & Dasari, Ramesh. (2014). Welding development in ESR modified 15CDV6 material. International Journal of Mechanical Engineering and Robotics Research, 3(3), 499-504.

Naveen Kumar, P., Bhaskar, Y., Mastanaiah, P., & Murthy, C. V. S. (2014). Study on dissimilar welding of 19CDV6 and SAE 4130 steels by inter pulse gas tungsten arc welding. Procedia Materials Science, 5, 2382-2391. https://doi.org/10.1016/j.mspro.2014.07.483

Podder, B., Gopi, G., Ramesh Kumar, K. Yadav, D. R., & Mondal, C. (2011). Effect of cold flow forming deformation on the tensile properties of 15CrMoV6 steel. In Proc. of the 2011 International Conference on Mechanical and Aerospace Engineering (pp. 604-606). IEEE.

Ramesh, M. V. L., Srinivasa Rao, P., & Venkateswara Rao, V. (2015). Microstructure and mechanical properties of laser beam welds of 15CDV6 steel. Defence Science Journal, 65(4), 339-342. https://doi.org/10.14429/dsj.65.8749

Sreekumar, K., Murthy, M. S. P., Natarajan, A., Sinha, P. P., & Nagarajan, K. V. (1982). Identification and morphology of structures in 15CDV6 steel. Transactions of the Indian Institute Metals, 35(4), 349-355.

Srinivasan, L., Jakka, S. J. & Sathiya, P. (2017). Microstructure and mechanical properties of gas tungsten arc welded high strength low alloy (15CDV6) steel joints. Materials Today: Proceedings, 4(8), 8874-8882.https://doi.org/10.1016/j.matpr.2017.07.238

Technical data of 15CDV6 steel. (2024). Aircraft Materials website: https://www.aircraftmaterials.com/data/alstst/15cdv6.html

Young, C. H., & Bhadeshia, H. K. D. H. (1994). Strength of mixtures of bainite and martensite. Materials Science and Technology, 10, 209-214. https://doi.org/10.1179/mst.1994.10.3.209