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Influence of Lanthanum-Doped Tungsten Wire Drawing Process on Microstructure and Properties
A reasonable preparation processing of Lanthanum-doped tungsten wire plays a decisive role in the final properties of the wire. This paper gives the optimum drawing process parameters of lanthanum-doped tungsten wire with φ1.00 mm–φ0.50 mm and explains the phenomenon of coarsening of fiber-like grai...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9323575/ https://www.ncbi.nlm.nih.gov/pubmed/35888446 http://dx.doi.org/10.3390/ma15144979 |
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author | Wang, Luyan Yu, Yueguang Zhang, Peng Yang, Jiancan |
author_facet | Wang, Luyan Yu, Yueguang Zhang, Peng Yang, Jiancan |
author_sort | Wang, Luyan |
collection | PubMed |
description | A reasonable preparation processing of Lanthanum-doped tungsten wire plays a decisive role in the final properties of the wire. This paper gives the optimum drawing process parameters of lanthanum-doped tungsten wire with φ1.00 mm–φ0.50 mm and explains the phenomenon of coarsening of fiber-like grains in the preparation processing of tungsten wire. The final optimum process parameters of lanthanum-doped tungsten wire are given: the temperature is 950 °C (the first pass temperature is 950 °C, and the temperature decreases by about 20 °C for each pass), the compression ratio is 15%, mold temperature is 550 °C, because of the limitation of equipment conditions, the wire drawing speed is fixed at 0.19 m/s. It is found that the fiber-like grains of the tungsten wire coarsen when the temperature is too high, and it is prone to breakage when the temperature is too low during the drawing process. When the compression ratio is too high (for example, 22%), there is a negative impact on the surface quality and the straightness of the tungsten wire. When the compression ratio is too low, the processing die time is increased, and the production cost is increased. |
format | Online Article Text |
id | pubmed-9323575 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-93235752022-07-27 Influence of Lanthanum-Doped Tungsten Wire Drawing Process on Microstructure and Properties Wang, Luyan Yu, Yueguang Zhang, Peng Yang, Jiancan Materials (Basel) Article A reasonable preparation processing of Lanthanum-doped tungsten wire plays a decisive role in the final properties of the wire. This paper gives the optimum drawing process parameters of lanthanum-doped tungsten wire with φ1.00 mm–φ0.50 mm and explains the phenomenon of coarsening of fiber-like grains in the preparation processing of tungsten wire. The final optimum process parameters of lanthanum-doped tungsten wire are given: the temperature is 950 °C (the first pass temperature is 950 °C, and the temperature decreases by about 20 °C for each pass), the compression ratio is 15%, mold temperature is 550 °C, because of the limitation of equipment conditions, the wire drawing speed is fixed at 0.19 m/s. It is found that the fiber-like grains of the tungsten wire coarsen when the temperature is too high, and it is prone to breakage when the temperature is too low during the drawing process. When the compression ratio is too high (for example, 22%), there is a negative impact on the surface quality and the straightness of the tungsten wire. When the compression ratio is too low, the processing die time is increased, and the production cost is increased. MDPI 2022-07-18 /pmc/articles/PMC9323575/ /pubmed/35888446 http://dx.doi.org/10.3390/ma15144979 Text en © 2022 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 Wang, Luyan Yu, Yueguang Zhang, Peng Yang, Jiancan Influence of Lanthanum-Doped Tungsten Wire Drawing Process on Microstructure and Properties |
title | Influence of Lanthanum-Doped Tungsten Wire Drawing Process on Microstructure and Properties |
title_full | Influence of Lanthanum-Doped Tungsten Wire Drawing Process on Microstructure and Properties |
title_fullStr | Influence of Lanthanum-Doped Tungsten Wire Drawing Process on Microstructure and Properties |
title_full_unstemmed | Influence of Lanthanum-Doped Tungsten Wire Drawing Process on Microstructure and Properties |
title_short | Influence of Lanthanum-Doped Tungsten Wire Drawing Process on Microstructure and Properties |
title_sort | influence of lanthanum-doped tungsten wire drawing process on microstructure and properties |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9323575/ https://www.ncbi.nlm.nih.gov/pubmed/35888446 http://dx.doi.org/10.3390/ma15144979 |
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