Dislocation networks in gamma/gamma’-microstructures formed during selective laser melting of a Ni-base superalloy
نویسندگان
چکیده
A dislocation network which formed during selective laser melting (SLM) of a Ni-base superalloy was analyzed using scanning transmission electron microscopy (STEM). This traverses an ordered Gamma'-phase domain, in between two adjacent Gamma-solid solution regions. The Gamma’-phase region has when particles have started to coalesce, trapping the this so that it families with pairs anti-phase boundary (APB) coupled super partial dislocations. features are presented and unusual (twist character low APB energies), not previously reported, discussed.
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ژورنال
عنوان ژورنال: Scripta Materialia
سال: 2021
ISSN: ['1359-6462', '1872-8456']
DOI: https://doi.org/10.1016/j.scriptamat.2020.08.019