Controlling the microstructure of Hastelloy-X components manufactured by selective laser melting

D. Tomus, T. Jarvis, X. Wu, J. Mei, P. Rometsch, E. Herny, J.-F. Rideau, S. Vaillant

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

72 Citations (Scopus)


Selective Laser Melting (SLM) is steadily gaining acceptance across the manufacturing industry. Techniques for manufacturing components with complex geometries layer by layer have proven to be very effective in accelerating product development and hence reducing time to market. To build components by SLM from a nickel based super-alloy requires an understanding of process parameters and how they influence the microstructure, the degree of porosity and the properties. In this work, it was found that the as-fabricated density of parts manufactured from Hastelloy-X by SLM could be increased from 77 to 99 % by decreasing the laser scan speed, and that the degree of cracking can be reduced by decreasing the amount of minor alloying additions such as Mn and Si.
Original languageEnglish
Title of host publicationProceedings of the Seventh International WLT Conference on Lasers in Manufacturing (LiM 2013)
Subtitle of host publicationMunich, Germany, May 13-16, 2013
EditorsC. Emmelmann, M. F. Zaeh, T. Graf, M. Schmidt
Place of PublicationAmsterdam, Netherlands
Pages823 - 827
Number of pages5
Publication statusPublished - 2013
EventInternational WLT Conference on Lasers in Manufacturing (LiM) 2013 - Munich, Germany
Duration: 13 May 201316 May 2013
Conference number: 7th

Publication series

NamePhysics Procedia
PublisherElsevier BV
ISSN (Electronic)1875-3892


ConferenceInternational WLT Conference on Lasers in Manufacturing (LiM) 2013
Abbreviated titleLiM 2013
Internet address


  • Selective laser melting
  • Hastelloy-X
  • Microstructure
  • Optimised process parameters

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