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...
Autores principales: | , , , , , , , , |
---|---|
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 |