Print Email Facebook Twitter Quasi In-Situ Study of Microstructure in a Laser Powder Bed Fusion Martensitic Stainless Steel Title Quasi In-Situ Study of Microstructure in a Laser Powder Bed Fusion Martensitic Stainless Steel Author Shahriari, Ayda (University of New Brunswick) Sanjari, Mehdi (University of New Brunswick; Natural Resources Canada) Mahmoudiniya, Mahdi (Universiteit Gent) Pirgazi, Hadi (Universiteit Gent) Shalchi Amirkhiz, Babak (University of New Brunswick; Natural Resources Canada) Kestens, L.A.I. (TU Delft Team Maria Santofimia Navarro; Universiteit Gent) Mohammadi, Mohsen (University of New Brunswick) Date 2024 Abstract This study explores the evolution of solidification microstructure of a laser powder bed fusion (L-PBF) martensitic stainless steel during solution annealing and aging. Quasi in-situ experiments using electron backscatter diffraction (EBSD) revealed that the finer, more equiaxed microstructure below the melt pool was susceptible to recrystallization and grain growth during solution annealing. The two distinct solidification microstructures below and inside the melt pool converged into a uniform grain morphology after solution annealing and aging processes. Graphical Abstract: (Figure presented.) To reference this document use: http://resolver.tudelft.nl/uuid:66023eb8-1b30-4150-9338-4ce268205868 DOI https://doi.org/10.1007/s11661-024-07353-4 Embargo date 2024-09-09 ISSN 1073-5623 Source Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science, 55 (5), 1302-1310 Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2024 Ayda Shahriari, Mehdi Sanjari, Mahdi Mahmoudiniya, Hadi Pirgazi, Babak Shalchi Amirkhiz, L.A.I. Kestens, Mohsen Mohammadi Files file embargo until 2024-09-09