Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment

David De Baere, Emilie Hørdum Valente, Sankhya Mohanty, Jesper Henry Hattel

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

    136 Downloads (Pure)

    Abstract

    The microstructure of parts produced by sective laser melting of Ti-6Al-4V is typically martensite in elongated prior β grains, which leads to anisotropic mechanical properties. A heat treatment can reduce this anisotropy by making these grains more equiaxed. In this work, simulations are performed wherein the evolution of the microstructure during a heat treatment is modelled using a cellular automata method. The results obtained from this simulation are compared to experimentally obtained micrographs. The simulated microstructure shows a similar evolution of the prior β grains from columnar to equiaxed, although the average diameter of the grains is slightly smaller in the simulations.
    Original languageEnglish
    Title of host publicationProceedings of the 18th International Conference of the european Society for Precision Engineering and Nanotechnology
    EditorsD. Billington , R. K. Leach, D. Phillips , O. Riemer , E. Savio
    PublisherThe European Society for Precision Engineering and Nanotechnology
    Publication date2018
    Pages249-250
    ISBN (Electronic)9780995775121
    Publication statusPublished - 2018
    Event18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) - Venice, Italy
    Duration: 4 Jun 20188 Jun 2018

    Conference

    Conference18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18)
    Country/TerritoryItaly
    CityVenice
    Period04/06/201808/06/2018

    Keywords

    • Microstructural modelling
    • Cellular Automata
    • Ti-6Al-4V
    • Selective laser melting
    • Heat Treatment

    Fingerprint

    Dive into the research topics of 'Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment'. Together they form a unique fingerprint.

    Cite this