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Anisotropy Of Tensile And Creep Properties Of Inconel 718 Type Material Prepared By Laser-Based Powder Bed Additive Manufacturing

  • : Dieter Sporer1, Ludo Bautmans1
  • : 1Oerlikon Metco
  • : PDF Download
  • : 2017

Abstract

 

This paper talks about anisotropy effects in Inconel 718 type parts built from powder materials using the selective laser melting (SLM) process. The selective laser melting had processing parameters varied but also features of the powder, like particle size and chemistry, were varied in order to study their influence on mechanical properties in three different directions. The directions investigated were 0°, 45° and 90° with regard to the AM machine build plate. The mechanical properties investigated were tensile properties at room temperature and creep rupture properties at 700 °C.

The results show that the ranking of properties measured in the three dimensions is fully reversed when changing from tensile to creep testing.

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