Affiliation:
1. Institute of Automation and Control Processes Far Eastern Branch of the Russian Academy of Sciences (IACP FEB RAS)
Abstract
The paper presents the results of studying the microstructure of samples obtained with laser processing of AK4-1 aluminum alloy powder. It has been found that increasing the initial temperature of the substrate to 100...150 °C allows to use this powder material in directed energy deposition (DED) additive process to create stiffening elements on the surface of thin-walled aluminum parts. When the specified temperature condition is satisfied, the crystallization rate decreases, allowing to obtain samples with almost no internal cracks. The results of comparing the microstructure and the microhardness of commercial AK4-1 wrought alloy and the samples obtained with DED process are presented. The structure of the samples prepared with laser cladding is more disperse in comparison with wrought alloy. The microhardness of the sample prepared at pre-heated substrate is comparable with wrought alloy. The conceptual architecture of the decision support software for laser powder cladding processes is presented. Its information and software components are briefly described.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference12 articles.
1. Y.N. Kulchin, A.I. Nikitin, P.A. Nikiforov, D.S. Pivovarov, D.S. Yatsko, Assessment of Applicability of the MPF-4 Magnesium Powder for Manufacturing Parts Using 3D Printing Technologies. Materials Science Forum. Vol. 992 (2020) 780-784. https://doi.org/10.4028/www.scientific.net/MSF.992.780.
2. A.S. Gnedenkov, S.L. Sinebryukhov, D.V. Mashtalyar, S.V. Gnedenkov, E.P. Subbotin, A.I. Nikitin, K.V. Nadaraia, Y.N. Kulchin, Direct laser deposition as a method of biodegradable magnesium implant manufacturing, Journal of Physics: Conference Series. Vol. 1092 (2018). 012044.
3. I.S. Loginova, V.O. Podusovskiy, A.V. Pozdniakov, A.Y. Churyumov, A.N. Solonin, The effect of modification on the tendency of Al – 4,7% Mg – 0,32% Mn – 0,21% Sc – 0,09% Zr alloy to form crystallization cracks under laser treatment. Light Alloys Technology. 3 (2018) 5-13. (in Russian).
4. A.Y. Churyumov, A.V. Pozdniakov, A.S. Prosviryakov, I.S. Loginova, D.K. Daubarayte, D.K. Ryabov, V.A. Korolev, A.N. Solonin, M.D. Pavlov, S.V. Valchuk, Microstructure and mechanical properties of a novel selective laser melted Al-Mg alloy with low Sc content, Materials Research Express. 6(12) (2019) №126595 (1-8).
5. I.S. Loginova, A.Y. Churyumov, A.V. Pozdniakov, A.N. Solonin, The study of microstructure of aluminum alloy Al – 5% Mg – 0.6% Zr – 0.55% Sc for additive manufacturing. Light Alloys Technology.Is. 2 (2018) 15-24. (in Russian).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
1. Melt Pool Temperature Control in Laser Additive Process;Bulletin of the Russian Academy of Sciences: Physics;2022-12