Microstructural And Mechanical Properties Of Selective Laser Melted Inconel 718 For Different Specimen Sizes

• Autorzy: Madejski Bartosz , Malicki Maciej , Czarnewicz Sławomir , Gruber Konrad

Identyfikatory

DOI

10.2478/fas-2020-0002

• Języki publikacji: EN

Abstrakty

EN

Selective laser melting (SLM) falls into the category of additive manufacturing technologies that are being increasingly used in the aerospace industry. This study presents the results of the examination of the microstructure and mechanical properties of selective laser melted Inconel 718. The tests were carried out for samples of different geometry (thickness, shape). The investigation showed the effect of the specimen’s size and the printing direction on the microstructure and mechanical properties. In the microstructural investigation, light and scanning electron microscopes were used. The microstructure investigation included measurements of the grain size and the carbides’ content. In order to estimate porosity computer tomography was used. Tensile tests were carried out at room temperature. The results showed differences in mechanical and microstructural properties of different size specimens.

Słowa kluczowe

EN

additive manufacturing; tensile test; microstructure investigation; IN718; Inconel 718

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Fatigue of Aircraft Structures
• Rocznik: 2020
• Tom: Iss. 12
• Strony: 15--26
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Madejski Bartosz

• Łukasiewcz Research Network - Institute of Aviation, Al. Krakowska 110/114, 02-256 Warsaw, Poland

• https://orcid.org/0000-0002-8000-6108

autor

Malicki Maciej

• Łukasiewcz Research Network - Institute of Aviation, Al. Krakowska 110/114, 02-256 Warsaw, Poland

• https://orcid.org/0000-0002-2570-2290

autor

Czarnewicz Sławomir

• Łukasiewcz Research Network - Institute of Aviation, Al. Krakowska 110/114, 02-256 Warsaw, Poland

• https://orcid.org/0000-0002-7530-6659

autor

Gruber Konrad

• Wrocław University of Science and Technology, Faculty of Mechanical Engineering, Łukasiewicza Street 5, 50-371 Wrocław, Poland

• https://orcid.org/0000-0003-1357-2473

Bibliografia

• [1] Trosch, T., Strößner, J., Völkl, R., Glatzel, U. (2016). Microstructure and mechanical properties of selective laser melted Inconel 718 compared to forging and casting. Mater Letters, 164, 428-431. DOI: 10.1016/j.matlet.2015.10.136.
• [2] Strößner, J.,Terock, M., Glatzel, U. (2015). Mechanical and microstructural investigation of nickel-based superalloy IN718 manufactured by selective laser melting (SLM), Advanced Engineering Materials, 17(8), 1099-1105. DOI: 10.1002/adem.201500158.
• [3] Li, X., Shi, J.J., Cao, G.H., Russell, A.M., Zhou, Z.J., Li, C.P., Chen, G.F. (2019). Improved plasticity of Inconel 718 superalloy fabricated by selective laser melting through a novel heat treatment process, Materials and Design, 18, 107915. DOI: 10.1016/j.matdes.2019.107915.
• [4] Standard Specification for Additive Manufacturing Nickel Alloy (UNS N07718) with Powder Bed Fusion. ASTM F3055-14a.
• [5] Standard Practice for Reporting Data for Test Specimens Prepared by Additive Manufacturing. ASTM F2971-13.
• [6] Standard Test Methods for Tension Testing of Metallic Materials. ASTM E8/E8M-16a.
• [7] Liu, F., Lin, X., Leng, H., Cao, J. Liu, Q., Huang, Ch., Huang, W. (2013). Microstructural changes in a laser solid forming Inconel 718 superalloy thin wall in the deposition direction, Optics&Laser Technology, 45, 330-335. DOI: 10.1016/j.optlastec.2012.06.028.
• [8] Raza, T., Andresson, J., Svensson, L-E. (2018). Microstructure of Selective Laser Melted Alloy 718 in As-Manufactured and Post Heated Treated Condtition, Procedia Manufacturing, 25, 450-458. DOI: 10.1016/j.promfg.2018.06.100.
• [9] Amato, K.N., Gaytan, S.M., Murr, L.E., Martinez, E., Shindo, P.W., Hernandez, J., Collins, S., Medina, F. (2012). Microstructures and mechanical behavior of Inconel 718 fabricated by selective laser metling, Acta Materialia, 60(5), 2229-2239. DOI: 10.1016/j.actamat.2011.12.032.
• [10] Lu, Y., Wu, S., Gan,Y., Huang, T., Yang, Ch., Junjie, L., Lin, J. (2015). Study on the microstructure, mechanical property and residual stress of SLM Inconel-718 alloy manufactured by differing island scanning strategy, Optics&Laser Technology, 75, 197-206. DOI: 10.1016/j.optlastec.2015.07.009.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).