Cargando…

Effect of Process Parameters on the Microstructure and Properties of Cu–Cr–Nb–Ti Alloy Manufactured by Selective Laser Melting

The fabrication of high-performance copper alloys by selective laser melting (SLM) is challenging, and establishing relationships between the process parameters and microstructures is necessary. In this study, Cu–Cr–Nb–Ti alloy is manufactured by SLM, and the microstructures of the alloy are investi...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Jian, Liu, Zuming, Zhou, Huan, Ye, Shupeng, Zhang, Yazhou, Liu, Tao, Jiang, Daoyan, Chen, Lei, Zhou, Runxing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10095698/
https://www.ncbi.nlm.nih.gov/pubmed/37049205
http://dx.doi.org/10.3390/ma16072912
_version_ 1785024145848795136
author Li, Jian
Liu, Zuming
Zhou, Huan
Ye, Shupeng
Zhang, Yazhou
Liu, Tao
Jiang, Daoyan
Chen, Lei
Zhou, Runxing
author_facet Li, Jian
Liu, Zuming
Zhou, Huan
Ye, Shupeng
Zhang, Yazhou
Liu, Tao
Jiang, Daoyan
Chen, Lei
Zhou, Runxing
author_sort Li, Jian
collection PubMed
description The fabrication of high-performance copper alloys by selective laser melting (SLM) is challenging, and establishing relationships between the process parameters and microstructures is necessary. In this study, Cu–Cr–Nb–Ti alloy is manufactured by SLM, and the microstructures of the alloy are investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), and electron backscatter diffraction (EBSD). The effects of processing parameters such as laser power and scanning speed on the relative density, defects, microstructures, mechanical properties, and electrical conductivity of the Cu–Cr–Nb–Ti alloy are studied. The optimal processing window for fabricating Cu–Cr–Nb–Ti alloy by SLM is determined. Face-centered cubic (FCC) Cu diffraction peaks shifting to small angles are observed, and there are no diffraction peaks related to the second phase. The grains of XY planes have a bimodal distribution with an average grain size of 24–55 μm. Fine second phases with sizes of less than 50 nm are obtained. The microhardness, tensile strength, and elongation of the Cu–Cr–Nb–Ti alloy manufactured using the optimum processing parameters, laser power of 325 W and scanning speed of 800 mm/s, are 139 HV0.2, 416 MPa, and 27.8%, respectively, and the electrical conductivity is 15.6% IACS (International Annealed Copper Standard). This study provides a feasible scheme for preparing copper alloys with excellent performance and complex geometries.
format Online
Article
Text
id pubmed-10095698
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-100956982023-04-13 Effect of Process Parameters on the Microstructure and Properties of Cu–Cr–Nb–Ti Alloy Manufactured by Selective Laser Melting Li, Jian Liu, Zuming Zhou, Huan Ye, Shupeng Zhang, Yazhou Liu, Tao Jiang, Daoyan Chen, Lei Zhou, Runxing Materials (Basel) Article The fabrication of high-performance copper alloys by selective laser melting (SLM) is challenging, and establishing relationships between the process parameters and microstructures is necessary. In this study, Cu–Cr–Nb–Ti alloy is manufactured by SLM, and the microstructures of the alloy are investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), and electron backscatter diffraction (EBSD). The effects of processing parameters such as laser power and scanning speed on the relative density, defects, microstructures, mechanical properties, and electrical conductivity of the Cu–Cr–Nb–Ti alloy are studied. The optimal processing window for fabricating Cu–Cr–Nb–Ti alloy by SLM is determined. Face-centered cubic (FCC) Cu diffraction peaks shifting to small angles are observed, and there are no diffraction peaks related to the second phase. The grains of XY planes have a bimodal distribution with an average grain size of 24–55 μm. Fine second phases with sizes of less than 50 nm are obtained. The microhardness, tensile strength, and elongation of the Cu–Cr–Nb–Ti alloy manufactured using the optimum processing parameters, laser power of 325 W and scanning speed of 800 mm/s, are 139 HV0.2, 416 MPa, and 27.8%, respectively, and the electrical conductivity is 15.6% IACS (International Annealed Copper Standard). This study provides a feasible scheme for preparing copper alloys with excellent performance and complex geometries. MDPI 2023-04-06 /pmc/articles/PMC10095698/ /pubmed/37049205 http://dx.doi.org/10.3390/ma16072912 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Jian
Liu, Zuming
Zhou, Huan
Ye, Shupeng
Zhang, Yazhou
Liu, Tao
Jiang, Daoyan
Chen, Lei
Zhou, Runxing
Effect of Process Parameters on the Microstructure and Properties of Cu–Cr–Nb–Ti Alloy Manufactured by Selective Laser Melting
title Effect of Process Parameters on the Microstructure and Properties of Cu–Cr–Nb–Ti Alloy Manufactured by Selective Laser Melting
title_full Effect of Process Parameters on the Microstructure and Properties of Cu–Cr–Nb–Ti Alloy Manufactured by Selective Laser Melting
title_fullStr Effect of Process Parameters on the Microstructure and Properties of Cu–Cr–Nb–Ti Alloy Manufactured by Selective Laser Melting
title_full_unstemmed Effect of Process Parameters on the Microstructure and Properties of Cu–Cr–Nb–Ti Alloy Manufactured by Selective Laser Melting
title_short Effect of Process Parameters on the Microstructure and Properties of Cu–Cr–Nb–Ti Alloy Manufactured by Selective Laser Melting
title_sort effect of process parameters on the microstructure and properties of cu–cr–nb–ti alloy manufactured by selective laser melting
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10095698/
https://www.ncbi.nlm.nih.gov/pubmed/37049205
http://dx.doi.org/10.3390/ma16072912
work_keys_str_mv AT lijian effectofprocessparametersonthemicrostructureandpropertiesofcucrnbtialloymanufacturedbyselectivelasermelting
AT liuzuming effectofprocessparametersonthemicrostructureandpropertiesofcucrnbtialloymanufacturedbyselectivelasermelting
AT zhouhuan effectofprocessparametersonthemicrostructureandpropertiesofcucrnbtialloymanufacturedbyselectivelasermelting
AT yeshupeng effectofprocessparametersonthemicrostructureandpropertiesofcucrnbtialloymanufacturedbyselectivelasermelting
AT zhangyazhou effectofprocessparametersonthemicrostructureandpropertiesofcucrnbtialloymanufacturedbyselectivelasermelting
AT liutao effectofprocessparametersonthemicrostructureandpropertiesofcucrnbtialloymanufacturedbyselectivelasermelting
AT jiangdaoyan effectofprocessparametersonthemicrostructureandpropertiesofcucrnbtialloymanufacturedbyselectivelasermelting
AT chenlei effectofprocessparametersonthemicrostructureandpropertiesofcucrnbtialloymanufacturedbyselectivelasermelting
AT zhourunxing effectofprocessparametersonthemicrostructureandpropertiesofcucrnbtialloymanufacturedbyselectivelasermelting