Spheroidization Behavior of Nano-Primary Silicon Induced by Neodymium under High-Current Pulsed Electron Beam Irradiation

The spheroidization behavior of the nano-primary silicon phase induced by Nd under high-current pulsed electron beam (HCPEB) irradiation was investigated in this study. The study results revealed that, compared to the Al–17.5Si alloy, spheroidized nano-primary silicon phase emerged in the alloy’s HC...

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Autores principales:	Liang Hu, Kui Li, Bo Gao, Ning Xu, Zhuang Liu, Yue Sun, Ying Zhang, Pengfei Xing
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	high-current pulsed electron beam spheroidization of nano-primary silicon Al–17.5Si–0.3Nd alloy element diffusion effect tribological property Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/9b2d59950605411ea86b9857a17e9ffc
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spelling	oai:doaj.org-article:9b2d59950605411ea86b9857a17e9ffc2021-11-25T17:16:56ZSpheroidization Behavior of Nano-Primary Silicon Induced by Neodymium under High-Current Pulsed Electron Beam Irradiation10.3390/coatings111114082079-6412https://doaj.org/article/9b2d59950605411ea86b9857a17e9ffc2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1408https://doaj.org/toc/2079-6412The spheroidization behavior of the nano-primary silicon phase induced by Nd under high-current pulsed electron beam (HCPEB) irradiation was investigated in this study. The study results revealed that, compared to the Al–17.5Si alloy, spheroidized nano-primary silicon phase emerged in the alloy’s HCPEB-irradiated surface layer due to the presence of Nd. Because Nd was abundantly enriched on the fast-growing silicon crystal plane, its surface tension was reduced under the extreme undercooling caused by HCPEB irradiation, causing the growth velocity of each crystal plane to be the same and spherical nanometers of silicon to appear. The spheroidization of nano-primary silicon phases occurred in the remelted layer. The microhardness test revealed that Nd could depress the microhardness of the Al matrix at the same number of pulses, but conversely increase the microhardness of the primary silicon phase, compared to the Al–17.5Si alloy. The tribological test showed that the presence of spherical nano-primary silicon could significantly improve the alloy’s tribological property.Liang HuKui LiBo GaoNing XuZhuang LiuYue SunYing ZhangPengfei XingMDPI AGarticlehigh-current pulsed electron beamspheroidization of nano-primary siliconAl–17.5Si–0.3Nd alloyelement diffusion effecttribological propertyEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1408, p 1408 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	high-current pulsed electron beam spheroidization of nano-primary silicon Al–17.5Si–0.3Nd alloy element diffusion effect tribological property Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	high-current pulsed electron beam spheroidization of nano-primary silicon Al–17.5Si–0.3Nd alloy element diffusion effect tribological property Engineering (General). Civil engineering (General) TA1-2040 Liang Hu Kui Li Bo Gao Ning Xu Zhuang Liu Yue Sun Ying Zhang Pengfei Xing Spheroidization Behavior of Nano-Primary Silicon Induced by Neodymium under High-Current Pulsed Electron Beam Irradiation
description	The spheroidization behavior of the nano-primary silicon phase induced by Nd under high-current pulsed electron beam (HCPEB) irradiation was investigated in this study. The study results revealed that, compared to the Al–17.5Si alloy, spheroidized nano-primary silicon phase emerged in the alloy’s HCPEB-irradiated surface layer due to the presence of Nd. Because Nd was abundantly enriched on the fast-growing silicon crystal plane, its surface tension was reduced under the extreme undercooling caused by HCPEB irradiation, causing the growth velocity of each crystal plane to be the same and spherical nanometers of silicon to appear. The spheroidization of nano-primary silicon phases occurred in the remelted layer. The microhardness test revealed that Nd could depress the microhardness of the Al matrix at the same number of pulses, but conversely increase the microhardness of the primary silicon phase, compared to the Al–17.5Si alloy. The tribological test showed that the presence of spherical nano-primary silicon could significantly improve the alloy’s tribological property.
format	article
author	Liang Hu Kui Li Bo Gao Ning Xu Zhuang Liu Yue Sun Ying Zhang Pengfei Xing
author_facet	Liang Hu Kui Li Bo Gao Ning Xu Zhuang Liu Yue Sun Ying Zhang Pengfei Xing
author_sort	Liang Hu
title	Spheroidization Behavior of Nano-Primary Silicon Induced by Neodymium under High-Current Pulsed Electron Beam Irradiation
title_short	Spheroidization Behavior of Nano-Primary Silicon Induced by Neodymium under High-Current Pulsed Electron Beam Irradiation
title_full	Spheroidization Behavior of Nano-Primary Silicon Induced by Neodymium under High-Current Pulsed Electron Beam Irradiation
title_fullStr	Spheroidization Behavior of Nano-Primary Silicon Induced by Neodymium under High-Current Pulsed Electron Beam Irradiation
title_full_unstemmed	Spheroidization Behavior of Nano-Primary Silicon Induced by Neodymium under High-Current Pulsed Electron Beam Irradiation
title_sort	spheroidization behavior of nano-primary silicon induced by neodymium under high-current pulsed electron beam irradiation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9b2d59950605411ea86b9857a17e9ffc
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Spheroidization Behavior of Nano-Primary Silicon Induced by Neodymium under High-Current Pulsed Electron Beam Irradiation

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