Microhardness and Microstructure Analysis of the LPBF Additively Manufactured 18Ni300

This research focuses on analysing the 18Ni300 maraging steel produced through laser powder bed fusion. Specifically, it aims to examine the phase components using X-ray diffraction, the microstructure through scanning electron microscopy, and the hardness of the different structures present in the...

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Main Authors: Pablo M. Cerezo, Jose A. Aguilera, Antonio Garcia-Gonzalez, Pablo Lopez-Crespo
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/17/3/661
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author Pablo M. Cerezo
Jose A. Aguilera
Antonio Garcia-Gonzalez
Pablo Lopez-Crespo
author_facet Pablo M. Cerezo
Jose A. Aguilera
Antonio Garcia-Gonzalez
Pablo Lopez-Crespo
author_sort Pablo M. Cerezo
collection DOAJ
description This research focuses on analysing the 18Ni300 maraging steel produced through laser powder bed fusion. Specifically, it aims to examine the phase components using X-ray diffraction, the microstructure through scanning electron microscopy, and the hardness of the different structures present in the manufactured material. The primary goal is to meticulously analyse the material and its microstructures. By doing so, a correlation between the hardness and each structure type, be it cellular or columnar, can be established. This will allow us to pinpoint any defects in the material before any surface chemical treatment is carried out and facilitate a thorough examination of its microstructure. A consistent pattern emerges across the samples through systematic measurement of microhardness distribution in various locations and detailed examination of the structure. The findings of the study reveal that the hardness of cellular and columnar structures exhibits a significant variation based on the location of the measurement about cell boundaries. The hardness value is notably higher in the combination of cellular and multiple layers, as the data indicate.
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spelling doaj.art-5be9b23ab0fb4d399e5d8a72fce2281b2024-02-09T15:17:38ZengMDPI AGMaterials1996-19442024-01-0117366110.3390/ma17030661Microhardness and Microstructure Analysis of the LPBF Additively Manufactured 18Ni300Pablo M. Cerezo0Jose A. Aguilera1Antonio Garcia-Gonzalez2Pablo Lopez-Crespo3Department of Civil and Materials Engineering, University of Malaga, C/Dr Ortiz Ramos, s/n, 29071 Malaga, SpainDepartment of Civil and Materials Engineering, University of Malaga, C/Dr Ortiz Ramos, s/n, 29071 Malaga, SpainDepartment of Civil and Materials Engineering, University of Malaga, C/Dr Ortiz Ramos, s/n, 29071 Malaga, SpainDepartment of Civil and Materials Engineering, University of Malaga, C/Dr Ortiz Ramos, s/n, 29071 Malaga, SpainThis research focuses on analysing the 18Ni300 maraging steel produced through laser powder bed fusion. Specifically, it aims to examine the phase components using X-ray diffraction, the microstructure through scanning electron microscopy, and the hardness of the different structures present in the manufactured material. The primary goal is to meticulously analyse the material and its microstructures. By doing so, a correlation between the hardness and each structure type, be it cellular or columnar, can be established. This will allow us to pinpoint any defects in the material before any surface chemical treatment is carried out and facilitate a thorough examination of its microstructure. A consistent pattern emerges across the samples through systematic measurement of microhardness distribution in various locations and detailed examination of the structure. The findings of the study reveal that the hardness of cellular and columnar structures exhibits a significant variation based on the location of the measurement about cell boundaries. The hardness value is notably higher in the combination of cellular and multiple layers, as the data indicate.https://www.mdpi.com/1996-1944/17/3/66118Ni300additive manufacturing (AM)laser powder bed fusion (LPBF)microhardnessmicro-indentationmicrostructure
spellingShingle Pablo M. Cerezo
Jose A. Aguilera
Antonio Garcia-Gonzalez
Pablo Lopez-Crespo
Microhardness and Microstructure Analysis of the LPBF Additively Manufactured 18Ni300
Materials
18Ni300
additive manufacturing (AM)
laser powder bed fusion (LPBF)
microhardness
micro-indentation
microstructure
title Microhardness and Microstructure Analysis of the LPBF Additively Manufactured 18Ni300
title_full Microhardness and Microstructure Analysis of the LPBF Additively Manufactured 18Ni300
title_fullStr Microhardness and Microstructure Analysis of the LPBF Additively Manufactured 18Ni300
title_full_unstemmed Microhardness and Microstructure Analysis of the LPBF Additively Manufactured 18Ni300
title_short Microhardness and Microstructure Analysis of the LPBF Additively Manufactured 18Ni300
title_sort microhardness and microstructure analysis of the lpbf additively manufactured 18ni300
topic 18Ni300
additive manufacturing (AM)
laser powder bed fusion (LPBF)
microhardness
micro-indentation
microstructure
url https://www.mdpi.com/1996-1944/17/3/661
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