A Study on Internal Defects of PREP Metallic Powders by Using X-ray Computed Tomography

In this study, the distribution, proportion and characteristics of internal defects in three kinds of powders of Ti-6Al-4V, 316-steel and Co-29Cr-6Mo alloys, produced by the plasma rotating electrode process (PREP) at various rotation speeds, are characterized by using both scanning electron microsc...

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Detalles Bibliográficos
Autores principales: Nie, Yan, Tang, Junjie, Huang, Junfei, Yu, Shu, Li, Yunping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7958947/
https://www.ncbi.nlm.nih.gov/pubmed/33802258
http://dx.doi.org/10.3390/ma14051177
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author Nie, Yan
Tang, Junjie
Huang, Junfei
Yu, Shu
Li, Yunping
author_facet Nie, Yan
Tang, Junjie
Huang, Junfei
Yu, Shu
Li, Yunping
author_sort Nie, Yan
collection PubMed
description In this study, the distribution, proportion and characteristics of internal defects in three kinds of powders of Ti-6Al-4V, 316-steel and Co-29Cr-6Mo alloys, produced by the plasma rotating electrode process (PREP) at various rotation speeds, are characterized by using both scanning electron microscopy (SEM) and synchrotron X-ray computed tomography (CT). The results show that in the powder of a given alloy, internal pores are formed more easily in coarse particles than in fine powder during PREP. The proportion of powder with pores can be reduced by appropriately increasing the rotation speed. In addition, the composition of an alloy has a great influence on the defect formation.
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spelling pubmed-79589472021-03-16 A Study on Internal Defects of PREP Metallic Powders by Using X-ray Computed Tomography Nie, Yan Tang, Junjie Huang, Junfei Yu, Shu Li, Yunping Materials (Basel) Article In this study, the distribution, proportion and characteristics of internal defects in three kinds of powders of Ti-6Al-4V, 316-steel and Co-29Cr-6Mo alloys, produced by the plasma rotating electrode process (PREP) at various rotation speeds, are characterized by using both scanning electron microscopy (SEM) and synchrotron X-ray computed tomography (CT). The results show that in the powder of a given alloy, internal pores are formed more easily in coarse particles than in fine powder during PREP. The proportion of powder with pores can be reduced by appropriately increasing the rotation speed. In addition, the composition of an alloy has a great influence on the defect formation. MDPI 2021-03-03 /pmc/articles/PMC7958947/ /pubmed/33802258 http://dx.doi.org/10.3390/ma14051177 Text en © 2021 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
Nie, Yan
Tang, Junjie
Huang, Junfei
Yu, Shu
Li, Yunping
A Study on Internal Defects of PREP Metallic Powders by Using X-ray Computed Tomography
title A Study on Internal Defects of PREP Metallic Powders by Using X-ray Computed Tomography
title_full A Study on Internal Defects of PREP Metallic Powders by Using X-ray Computed Tomography
title_fullStr A Study on Internal Defects of PREP Metallic Powders by Using X-ray Computed Tomography
title_full_unstemmed A Study on Internal Defects of PREP Metallic Powders by Using X-ray Computed Tomography
title_short A Study on Internal Defects of PREP Metallic Powders by Using X-ray Computed Tomography
title_sort study on internal defects of prep metallic powders by using x-ray computed tomography
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7958947/
https://www.ncbi.nlm.nih.gov/pubmed/33802258
http://dx.doi.org/10.3390/ma14051177
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