Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing

The finishing accuracy and efficiency of magnetic abrasive finishing (MAF) are mainly depending on magnetic abrasive powders (MAPs). A new kind of core–shell structured carbonyl iron powders (CI-MAPs) with a hard Fe/Al intermetallic shell for magnetic abrasive finishing is successfully synthesized b...

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Autores principales:	Wensheng Li, Jianjun Li, Bo Cheng, Xinjian Zhang, Qiang Song, Yu Wang, Tao Zhang, Uladzimir Seniuts, Marat Belotsrkovsky
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Magnetic abrasive finishing Carbonyl iron Fe/Al intermetallic core–shell In-situ alloy-hardening Surface roughness Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/f2f525f719034096a1af6ad5c77db468
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spelling	oai:doaj.org-article:f2f525f719034096a1af6ad5c77db4682021-11-04T04:26:01ZAchieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing0264-127510.1016/j.matdes.2021.110198https://doaj.org/article/f2f525f719034096a1af6ad5c77db4682021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S026412752100753Xhttps://doaj.org/toc/0264-1275The finishing accuracy and efficiency of magnetic abrasive finishing (MAF) are mainly depending on magnetic abrasive powders (MAPs). A new kind of core–shell structured carbonyl iron powders (CI-MAPs) with a hard Fe/Al intermetallic shell for magnetic abrasive finishing is successfully synthesized by in-situ alloy-hardening the surface of spherical carbonyl iron powders in this study. The feasibility of such an in-situ alloy-hardening strategy is theoretically designed according to the Fe/Al intermetallic compound formation chemical reaction using the Gibbs free energy principle and the TG-DSC testing, and thus the experimental thermodynamics temperature and time ranges of such chemical reactions are proposed. Experimental results shown that a densely zigzag-like uniform alloy-hardening layer with a thickness of about 11 μm, which are composed of Fe3Al, FeAl, and Fe2Al5 intermetallic compounds, was in-situ chemically synthesized on the surface of the spherical carbonyl Fe powders. The achieved core–shell structured powder is performed to finishing a Zirconium tube experimentally, and the roughness (Ra) of the Zirconium tube is greatly improved from 0.361 μm to 0.085 μm by 3 MAF passes.Wensheng LiJianjun LiBo ChengXinjian ZhangQiang SongYu WangTao ZhangUladzimir SeniutsMarat BelotsrkovskyElsevierarticleMagnetic abrasive finishingCarbonyl ironFe/Al intermetallic core–shellIn-situ alloy-hardeningSurface roughnessMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110198- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Magnetic abrasive finishing Carbonyl iron Fe/Al intermetallic core–shell In-situ alloy-hardening Surface roughness Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Magnetic abrasive finishing Carbonyl iron Fe/Al intermetallic core–shell In-situ alloy-hardening Surface roughness Materials of engineering and construction. Mechanics of materials TA401-492 Wensheng Li Jianjun Li Bo Cheng Xinjian Zhang Qiang Song Yu Wang Tao Zhang Uladzimir Seniuts Marat Belotsrkovsky Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing
description	The finishing accuracy and efficiency of magnetic abrasive finishing (MAF) are mainly depending on magnetic abrasive powders (MAPs). A new kind of core–shell structured carbonyl iron powders (CI-MAPs) with a hard Fe/Al intermetallic shell for magnetic abrasive finishing is successfully synthesized by in-situ alloy-hardening the surface of spherical carbonyl iron powders in this study. The feasibility of such an in-situ alloy-hardening strategy is theoretically designed according to the Fe/Al intermetallic compound formation chemical reaction using the Gibbs free energy principle and the TG-DSC testing, and thus the experimental thermodynamics temperature and time ranges of such chemical reactions are proposed. Experimental results shown that a densely zigzag-like uniform alloy-hardening layer with a thickness of about 11 μm, which are composed of Fe3Al, FeAl, and Fe2Al5 intermetallic compounds, was in-situ chemically synthesized on the surface of the spherical carbonyl Fe powders. The achieved core–shell structured powder is performed to finishing a Zirconium tube experimentally, and the roughness (Ra) of the Zirconium tube is greatly improved from 0.361 μm to 0.085 μm by 3 MAF passes.
format	article
author	Wensheng Li Jianjun Li Bo Cheng Xinjian Zhang Qiang Song Yu Wang Tao Zhang Uladzimir Seniuts Marat Belotsrkovsky
author_facet	Wensheng Li Jianjun Li Bo Cheng Xinjian Zhang Qiang Song Yu Wang Tao Zhang Uladzimir Seniuts Marat Belotsrkovsky
author_sort	Wensheng Li
title	Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing
title_short	Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing
title_full	Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing
title_fullStr	Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing
title_full_unstemmed	Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing
title_sort	achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/f2f525f719034096a1af6ad5c77db468
work_keys_str_mv	AT wenshengli achievinginsitualloyhardeningcoreshellstructuredcarbonylironpowdersformagneticabrasivefinishing AT jianjunli achievinginsitualloyhardeningcoreshellstructuredcarbonylironpowdersformagneticabrasivefinishing AT bocheng achievinginsitualloyhardeningcoreshellstructuredcarbonylironpowdersformagneticabrasivefinishing AT xinjianzhang achievinginsitualloyhardeningcoreshellstructuredcarbonylironpowdersformagneticabrasivefinishing AT qiangsong achievinginsitualloyhardeningcoreshellstructuredcarbonylironpowdersformagneticabrasivefinishing AT yuwang achievinginsitualloyhardeningcoreshellstructuredcarbonylironpowdersformagneticabrasivefinishing AT taozhang achievinginsitualloyhardeningcoreshellstructuredcarbonylironpowdersformagneticabrasivefinishing AT uladzimirseniuts achievinginsitualloyhardeningcoreshellstructuredcarbonylironpowdersformagneticabrasivefinishing AT maratbelotsrkovsky achievinginsitualloyhardeningcoreshellstructuredcarbonylironpowdersformagneticabrasivefinishing
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Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing

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