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Dislocation networks in gamma/gamma’-microstructures formed during selective laser melting of a Ni-base superalloy
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SYSNO ASEP 0541480 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Dislocation networks in gamma/gamma’-microstructures formed during selective laser melting of a Ni-base superalloy Author(s) Heep, L. (DE)
Schwalbe, C. (GB)
Heinze, C. (DE)
Dlouhý, Antonín (UFM-A) RID, ORCID
Rae, C. M. F. (GB)
Eggeler, G. (DE)Number of authors 5 Source Title Scripta Materialia. - : Elsevier - ISSN 1359-6462
Roč. 190, JAN (2021), s. 121-125Number of pages 5 s. Language eng - English Country GB - United Kingdom Keywords Dislocation networks ; Ni-base superalloys ; Merging γ’-particles ; Scanning transmission electron microscopy ; Anti-phase boundary energies Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects EF16_025/0007304 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UFM-A - RVO:68081723 UT WOS 000573819400004 EID SCOPUS 85090130597 DOI 10.1016/j.scriptamat.2020.08.019 Annotation A dislocation network which formed during selective laser melting (SLM) of a Ni-base superalloy was analyzed using scanning transmission electron microscopy (STEM). This network traverses an ordered Gamma'-phase domain, in between two adjacent Gamma-solid solution regions. The Gamma’-phase region has formed when two Gamma’-phase particles have started to coalesce, trapping the dislocation network in this ordered region so that it formed two dislocation families with pairs of anti-phase boundary (APB) coupled super partial dislocations. The network features are presented and unusual features (twist character and low APB energies), not previously reported, are discussed. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2022 Electronic address https://www.sciencedirect.com/science/article/pii/S1359646220305455?via%3Dihub
Number of the records: 1