Chmelko Vladimír, Šulko Miroslav, Škriniarová Jaroslava, Margetin Matúš, Gašparík Marek, Koščo Tomáš, Semeš Marián
Institute of Applied Mechanics and Mechatronics, Slovak University of Technology in Bratislava, Námestie Slobody 17, 81231 Bratislava, Slovakia.
Institute of Informatics, Slovak Academy of Sciences, Dúbravská Cesta 9, 84507 Bratislava, Slovakia.
Materials (Basel). 2023 Mar 24;16(7):2598. doi: 10.3390/ma16072598.
Additive metals are practically identical in strength to the properties of conventionally produced materials. This article experimentally analyses strength properties and fatigue properties in the tensile-pressure mode for two different directions of 3D printing of AlSiMg material. The resulting fatigue parameters of the Basquin curve are confronted with a conventionally produced alloy of the same composition. The microstructure analysis explains the different fatigue properties obtained by these two material production technologies. Phenomena such as strength enhancement in additive manufacturing material, anisotropy of cyclic properties, and cyclic hardening are discussed. The limits of current additive manufacturing are clarified, and the future direction of research in this field is outlined.
添加金属在强度方面与传统生产材料的性能几乎相同。本文通过实验分析了AlSiMg材料在两种不同3D打印方向上的拉伸-压缩模式下的强度性能和疲劳性能。将得到的巴斯奎曲线疲劳参数与相同成分的传统生产合金进行对比。微观结构分析解释了这两种材料生产技术所获得的不同疲劳性能。讨论了增材制造材料中的强度增强、循环性能各向异性和循环硬化等现象。阐明了当前增材制造的局限性，并概述了该领域未来的研究方向。
