Analysis of the topographical, microstructural and mechanical surface properties of powder bed fusion melted AlSi10Mg for a broad range of process parameters

Klanjšček, Urban (author), Kalin, Mitjan (author)

The topographical, microstructural, and mechanical surface properties of additively manufactured components depend on variations of several processing parameters. Most studies focus on a narrow range of parameter variations, with the surface and subsurface characteristics being determined for that limited set of conditions. This makes it difficult to optimize these properties for additively manufactured parts and the energy consumption of the additive-manufacturing (AM) process. Our study looks at the systematic variation of two key AM parameters over their full range using a commercial AM machine. The laser scanning speed (500–1700 mm/s) and the laser power (250–370 W) were the parameters used. We analyze and discuss how these two parameters affect the surface topography, roughness, porosity, microstructure and hardness, as well as their anisotropy for the top and side surfaces during powder bed fusion, using a single AM machine and printing strategy. The aluminum alloy AlSi10Mg was selected for the study. It is one of the most commonly used materials in die casting and has the potential to take advantage of AM technology, since these parts can be lightweight, have good mechanical properties and to be produced with complex shapes.

• Language: English
• Keywords: additive manufacturing, processing parameters, topography, microstructure
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: 30 str.
• Numbering: Vol. 9, no. 6, art. 200
• PID: 20.500.12556/RUL-169927
• UDC: 621.7:004.925.84
• ISSN on article: 2504-4494
• DOI: 10.3390/jmmp9060200
• COBISS.SI-ID: 239672067
• Publication date in RUL: 17.06.2025

Record is a part of a journal

• Title: Journal of manufacturing and materials processing
• Shortened title: J. manuf. mater. process.
• Publisher: MDPI
• ISSN: 2504-4494
• COBISS.SI-ID: 21628182

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: 3D tisk, procesni parametri, topografija, mikrostruktura