EPMA Club Project to look at mechanical behaviour and microstructure of PM materials

A European Powder Metallurgy Association (EPMA) Club
Project, focusing on the analysis of the mechanical behaviour and the evolution
of microstructure in Powder Metallurgy materials, is being proposed by Spain’s
IMDEA Materials Institute. The EPMA is inviting delegates at its Euro PM2019
Congress & Exhibition, taking place at the MECC Congress Centre in
Maastricht, the Netherlands, to attend a preliminary meeting to discuss
the multidisciplinary project on October 13, 2019. 

The initial Club Project will involve an in-depth study of
the mechanical properties and damage prediction of one selected material. The
material has yet to be defined, but initial proposals are a stainless steel,
such as 316L, or a superalloy such as Inconel. Under the project, PM samples
would be compared against samples produced by different manufacturing
techniques, such as press & sinter Powder Metallurgy, Additive
Manufacturing, Hot Isostatic Pressing (HIP) or Metal Injection Moulding

According to the EPMA, the study will cover two different
aspects of PM material microstructures:

  • Mechanical and microstructural behaviour will be
    studied by means of standard tensile samples as well through special
    ‘in-situ’ micro tensile samples machined from blanks produced by the
    different PM techniques. In the case of AM, the tensile specimens will be
    obtained in the direction of the build and the perpendicular direction.
  • Damage analysis and damage prediction in samples will
    be obtained by the different methods. Damage will be investigated under
    tensile stresses at room temperature. The damage will be evaluated as a
    function of the plastic strain, estimated by digital image correlation,
    and these data will serve as inputs for the development of a continuum
    numerical modelling, which could later be used as a predictive tool.

The final scope of the project will be decided during the
meeting. Those with an interest in joining the project and who wish to attend
the preliminary meeting are invited to contact Bruno Vicenzi ([email protected]), EPMA Technical Manager. 

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