Additive manufacturing of electron® 43 alloy using laser powder bed and directed energy deposition

Rajiv Tandon, Timothy Wilks, Dipl Ing Matthias Gieseke, Dipl Ing Christian Noelke, Stefan Kaierle, Todd Palmer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Magnesium based alloys offer unique opportunities for lightweight structural and biomedical applications via additive manufacturing (A/M) because of their low density, biocompatibility and biodegradability. However, A/M of magnesium alloys is in early stages of development with very few reported studies. These feasibility studies have attempted mainly to study the processing behavior of magnesium powders, and identified challenges due to material and powder characteristics. In this study, an Elektron®MAP+43 alloy powder was investigated using both directed energy deposition and a powder bed process. Using the directed deposition process, builds up to 15.24 cm x 5.08 cm x 1.27 cm were fabricated by optimizing parameters such as laser power, scan speed, and chamber oxygen to minimize porosity and produce desirable build microstructures. Mechanical testing and metallographic samples were extracted and tested from selected orientations. A powder bed process was also investigated to develop parameters, optimize microstructure and scan strategies for building cylindrical samples so that tensile specimens could be machined and tested. The effects of heat treatment and hot isostatic pressing on directed laser deposited parts are also discussed. The results of this study are used to explore pathways for potential commercialization of magnesium alloy powders for additive manufacturing.

Original languageEnglish (US)
Title of host publicationProceedings Euro PM 2015
Subtitle of host publicationInternational Power Metallurgy Congress and Exhibition
PublisherEuropean Powder Metallurgy Association (EPMA)
ISBN (Electronic)9781899072477
StatePublished - Jan 1 2015
EventInternational Power Metallurgy Congress and Exhibition, Euro PM 2015 - Reims, France
Duration: Oct 4 2015Oct 7 2015

Publication series

NameProceedings Euro PM 2015: International Power Metallurgy Congress and Exhibition

Other

OtherInternational Power Metallurgy Congress and Exhibition, Euro PM 2015
CountryFrance
CityReims
Period10/4/1510/7/15

All Science Journal Classification (ASJC) codes

  • Metals and Alloys
  • Surfaces and Interfaces
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Ceramics and Composites
  • Mechanics of Materials

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    Tandon, R., Wilks, T., Gieseke, D. I. M., Noelke, D. I. C., Kaierle, S., & Palmer, T. (2015). Additive manufacturing of electron® 43 alloy using laser powder bed and directed energy deposition. In Proceedings Euro PM 2015: International Power Metallurgy Congress and Exhibition (Proceedings Euro PM 2015: International Power Metallurgy Congress and Exhibition). European Powder Metallurgy Association (EPMA).