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On the Processing Feasibility, Microstructure Evolution, and Mechanical Properties of Laser Clad Stellite(®) 21 Alloy
Laser cladding is widely used for feature repair and manufacturing of large structural components. However, due to processing parameters and thus energy densities variation, defects can form in laser clad materials. There is a need to understand the relationship between energy densities and cladding...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7778870/ http://dx.doi.org/10.1007/s11666-020-01129-z |
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author | Rao, Jeremy H. Stanford, Nikki |
author_facet | Rao, Jeremy H. Stanford, Nikki |
author_sort | Rao, Jeremy H. |
collection | PubMed |
description | Laser cladding is widely used for feature repair and manufacturing of large structural components. However, due to processing parameters and thus energy densities variation, defects can form in laser clad materials. There is a need to understand the relationship between energy densities and cladding quality. This study therefore investigates the critical parameters in producing structural Stellite(®) 21 (Co-Cr-MoNiC) alloy by laser cladding. Compared with conventional manufacturing, laser clad materials possess ultrafine α-Co dendrites and σ-CoCr interdendritic eutectics due to the fast cooling rate. In addition, adjustment of the energy densities can help control defects and improve corrosion resistance. The wear resistance, microhardness, and phase analysis in the laser clad materials are also discussed in this work. |
format | Online Article Text |
id | pubmed-7778870 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-77788702021-01-04 On the Processing Feasibility, Microstructure Evolution, and Mechanical Properties of Laser Clad Stellite(®) 21 Alloy Rao, Jeremy H. Stanford, Nikki J Therm Spray Tech Peer Reviewed Laser cladding is widely used for feature repair and manufacturing of large structural components. However, due to processing parameters and thus energy densities variation, defects can form in laser clad materials. There is a need to understand the relationship between energy densities and cladding quality. This study therefore investigates the critical parameters in producing structural Stellite(®) 21 (Co-Cr-MoNiC) alloy by laser cladding. Compared with conventional manufacturing, laser clad materials possess ultrafine α-Co dendrites and σ-CoCr interdendritic eutectics due to the fast cooling rate. In addition, adjustment of the energy densities can help control defects and improve corrosion resistance. The wear resistance, microhardness, and phase analysis in the laser clad materials are also discussed in this work. Springer US 2021-01-03 /pmc/articles/PMC7778870/ http://dx.doi.org/10.1007/s11666-020-01129-z Text en © ASM International 2021 This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic. |
spellingShingle | Peer Reviewed Rao, Jeremy H. Stanford, Nikki On the Processing Feasibility, Microstructure Evolution, and Mechanical Properties of Laser Clad Stellite(®) 21 Alloy |
title | On the Processing Feasibility, Microstructure Evolution, and Mechanical Properties of Laser Clad Stellite(®) 21 Alloy |
title_full | On the Processing Feasibility, Microstructure Evolution, and Mechanical Properties of Laser Clad Stellite(®) 21 Alloy |
title_fullStr | On the Processing Feasibility, Microstructure Evolution, and Mechanical Properties of Laser Clad Stellite(®) 21 Alloy |
title_full_unstemmed | On the Processing Feasibility, Microstructure Evolution, and Mechanical Properties of Laser Clad Stellite(®) 21 Alloy |
title_short | On the Processing Feasibility, Microstructure Evolution, and Mechanical Properties of Laser Clad Stellite(®) 21 Alloy |
title_sort | on the processing feasibility, microstructure evolution, and mechanical properties of laser clad stellite(®) 21 alloy |
topic | Peer Reviewed |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7778870/ http://dx.doi.org/10.1007/s11666-020-01129-z |
work_keys_str_mv | AT raojeremyh ontheprocessingfeasibilitymicrostructureevolutionandmechanicalpropertiesoflasercladstellite21alloy AT stanfordnikki ontheprocessingfeasibilitymicrostructureevolutionandmechanicalpropertiesoflasercladstellite21alloy |