Tensile strength performance with determination of the Poisson‘s ratio of additively manufactured AlSi10Mg samples

Translated title of the contribution: Tensile strength performance with determination of the Poisson‘s ratio of additively manufactured AlSi10Mg samples

E. Sert, E. Schuch, A. Öchsner, L. Hitzler, E. Werner, M. Merkel

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Additive manufacturing of metals is a key technology and an emerging industrial sector enabling the manufacture of highly specialized and advanced components. It's outstanding advantages are the geometric flexibility and the elimination of tools compared to conventional manufacturing techniques. However, multiple directional dependencies lead to an anisotropic material behaviour, rendering the material description more complicated. Samples used for this study were fabricated from the age-hardenable alloy AlSi10Mg, focusing on fluctuating material properties in relation to differing built orientations. In addition, the effect of thermal post treatment was considered. Comprehensive tensile tests employing a lateral strain sensor were performed, in order to determine the transverse contraction during loading and to quantify directional dependencies. The Young's modulus varied between 66 GPa and 68 GPa, however the Poisson's ratio ranged between 0.31 and 0.39. Investigations on the fractured faces by means of scanning electron microscopy investigations were also part of this study.

Translated title of the contributionTensile strength performance with determination of the Poisson‘s ratio of additively manufactured AlSi10Mg samples
Original languageEnglish
Pages (from-to)539-545
Number of pages7
JournalMaterialwissenschaft und Werkstofftechnik
Volume50
Issue number5
DOIs
StatePublished - May 2019

Keywords

  • Poisson's ratio
  • Power-bed based additive manufacturing
  • building direction
  • precipitation hardening
  • scanning electron microscopy
  • tensile strength

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