Fabrication of Crack-Free Nickel-Based Superalloy Considered Non-Weldable during Laser Powder Bed Fusion

Crack-free Hastelloy X fabricated through laser powder bed fusion (LPBF) from powder with a standard chemical composition is reported. Electron backscatter diffraction (EBSD) analysis evidenced columnar grains parallel to the building direction. The typical LPBF columnar dendrite microstructure was...

Descripción completa

Detalles Bibliográficos
Autores principales: Sanchez-Mata, Oscar, Wang, Xianglong, Muñiz-Lerma, Jose Alberto, Attarian Shandiz, Mohammad, Gauvin, Raynald, Brochu, Mathieu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6117717/
https://www.ncbi.nlm.nih.gov/pubmed/30046019
http://dx.doi.org/10.3390/ma11081288
_version_ 1783351808618397696
author Sanchez-Mata, Oscar
Wang, Xianglong
Muñiz-Lerma, Jose Alberto
Attarian Shandiz, Mohammad
Gauvin, Raynald
Brochu, Mathieu
author_facet Sanchez-Mata, Oscar
Wang, Xianglong
Muñiz-Lerma, Jose Alberto
Attarian Shandiz, Mohammad
Gauvin, Raynald
Brochu, Mathieu
author_sort Sanchez-Mata, Oscar
collection PubMed
description Crack-free Hastelloy X fabricated through laser powder bed fusion (LPBF) from powder with a standard chemical composition is reported. Electron backscatter diffraction (EBSD) analysis evidenced columnar grains parallel to the building direction. The typical LPBF columnar dendrite microstructure was found to be finer than reported elsewhere. Mo-enriched carbides (~50 nm), presumed to play an important role in the cracking behavior of the alloy, were confirmed along interdendritic regions. Crack-free condition was maintained after heat treatment at 1177 °C for 1 h followed by water quenching, and the resulting microstructure was analyzed.
format Online
Article
Text
id pubmed-6117717
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-61177172018-09-05 Fabrication of Crack-Free Nickel-Based Superalloy Considered Non-Weldable during Laser Powder Bed Fusion Sanchez-Mata, Oscar Wang, Xianglong Muñiz-Lerma, Jose Alberto Attarian Shandiz, Mohammad Gauvin, Raynald Brochu, Mathieu Materials (Basel) Article Crack-free Hastelloy X fabricated through laser powder bed fusion (LPBF) from powder with a standard chemical composition is reported. Electron backscatter diffraction (EBSD) analysis evidenced columnar grains parallel to the building direction. The typical LPBF columnar dendrite microstructure was found to be finer than reported elsewhere. Mo-enriched carbides (~50 nm), presumed to play an important role in the cracking behavior of the alloy, were confirmed along interdendritic regions. Crack-free condition was maintained after heat treatment at 1177 °C for 1 h followed by water quenching, and the resulting microstructure was analyzed. MDPI 2018-07-25 /pmc/articles/PMC6117717/ /pubmed/30046019 http://dx.doi.org/10.3390/ma11081288 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sanchez-Mata, Oscar
Wang, Xianglong
Muñiz-Lerma, Jose Alberto
Attarian Shandiz, Mohammad
Gauvin, Raynald
Brochu, Mathieu
Fabrication of Crack-Free Nickel-Based Superalloy Considered Non-Weldable during Laser Powder Bed Fusion
title Fabrication of Crack-Free Nickel-Based Superalloy Considered Non-Weldable during Laser Powder Bed Fusion
title_full Fabrication of Crack-Free Nickel-Based Superalloy Considered Non-Weldable during Laser Powder Bed Fusion
title_fullStr Fabrication of Crack-Free Nickel-Based Superalloy Considered Non-Weldable during Laser Powder Bed Fusion
title_full_unstemmed Fabrication of Crack-Free Nickel-Based Superalloy Considered Non-Weldable during Laser Powder Bed Fusion
title_short Fabrication of Crack-Free Nickel-Based Superalloy Considered Non-Weldable during Laser Powder Bed Fusion
title_sort fabrication of crack-free nickel-based superalloy considered non-weldable during laser powder bed fusion
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6117717/
https://www.ncbi.nlm.nih.gov/pubmed/30046019
http://dx.doi.org/10.3390/ma11081288
work_keys_str_mv AT sanchezmataoscar fabricationofcrackfreenickelbasedsuperalloyconsiderednonweldableduringlaserpowderbedfusion
AT wangxianglong fabricationofcrackfreenickelbasedsuperalloyconsiderednonweldableduringlaserpowderbedfusion
AT munizlermajosealberto fabricationofcrackfreenickelbasedsuperalloyconsiderednonweldableduringlaserpowderbedfusion
AT attarianshandizmohammad fabricationofcrackfreenickelbasedsuperalloyconsiderednonweldableduringlaserpowderbedfusion
AT gauvinraynald fabricationofcrackfreenickelbasedsuperalloyconsiderednonweldableduringlaserpowderbedfusion
AT brochumathieu fabricationofcrackfreenickelbasedsuperalloyconsiderednonweldableduringlaserpowderbedfusion

Ejemplares similares