Control of MnS Inclusions in High- and Low-Sulfur Steel by Tellurium Treatment

Manganese sulfide (MnS) inclusion in steel is related to the machinability of steel. Controlling the type and shape of MnS inclusion has been a problem for the steelmaking process for a long time. The effect of tellurium (Te) treatment on the control of MnS inclusion is studied with experiments and...

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Main Authors:	Feng Wang, Hao Guo, Wei Liu, Shufeng Yang, Shuo Zhang, Jingshe Li
Format:	Article
Language:	English
Published:	MDPI AG 2019-03-01
Series:	Materials
Subjects:	MnS inclusion Te treatment sulfide inclusion inclusion control free-cutting steel
Online Access:	https://www.mdpi.com/1996-1944/12/7/1034

id	doaj-39a4bc7bc4a640afad85bfc816848b4d
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spelling	doaj-39a4bc7bc4a640afad85bfc816848b4d2020-11-25T02:18:08ZengMDPI AGMaterials1996-19442019-03-01127103410.3390/ma12071034ma12071034Control of MnS Inclusions in High- and Low-Sulfur Steel by Tellurium TreatmentFeng Wang0Hao Guo1Wei Liu2Shufeng Yang3Shuo Zhang4Jingshe Li5School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaManganese sulfide (MnS) inclusion in steel is related to the machinability of steel. Controlling the type and shape of MnS inclusion has been a problem for the steelmaking process for a long time. The effect of tellurium (Te) treatment on the control of MnS inclusion is studied with experiments and discussion of sequential solidification. The result shows that Te addition to the high- and low-sulfur steel dominantly changes the size and shape of MnS inclusions in steel. The aspect ratio of inclusions in cast steel changes with Te/S ranges from 0 to 1.9, which offers an effective way to control the MnS type and thus to improve the machinability and mechanical properties of steel. With an excessive Te addition, no further improvement could be observed by scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS).https://www.mdpi.com/1996-1944/12/7/1034MnS inclusionTe treatmentsulfide inclusioninclusion controlfree-cutting steel
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Feng Wang Hao Guo Wei Liu Shufeng Yang Shuo Zhang Jingshe Li
spellingShingle	Feng Wang Hao Guo Wei Liu Shufeng Yang Shuo Zhang Jingshe Li Control of MnS Inclusions in High- and Low-Sulfur Steel by Tellurium Treatment Materials MnS inclusion Te treatment sulfide inclusion inclusion control free-cutting steel
author_facet	Feng Wang Hao Guo Wei Liu Shufeng Yang Shuo Zhang Jingshe Li
author_sort	Feng Wang
title	Control of MnS Inclusions in High- and Low-Sulfur Steel by Tellurium Treatment
title_short	Control of MnS Inclusions in High- and Low-Sulfur Steel by Tellurium Treatment
title_full	Control of MnS Inclusions in High- and Low-Sulfur Steel by Tellurium Treatment
title_fullStr	Control of MnS Inclusions in High- and Low-Sulfur Steel by Tellurium Treatment
title_full_unstemmed	Control of MnS Inclusions in High- and Low-Sulfur Steel by Tellurium Treatment
title_sort	control of mns inclusions in high- and low-sulfur steel by tellurium treatment
publisher	MDPI AG
series	Materials
issn	1996-1944
publishDate	2019-03-01
description	Manganese sulfide (MnS) inclusion in steel is related to the machinability of steel. Controlling the type and shape of MnS inclusion has been a problem for the steelmaking process for a long time. The effect of tellurium (Te) treatment on the control of MnS inclusion is studied with experiments and discussion of sequential solidification. The result shows that Te addition to the high- and low-sulfur steel dominantly changes the size and shape of MnS inclusions in steel. The aspect ratio of inclusions in cast steel changes with Te/S ranges from 0 to 1.9, which offers an effective way to control the MnS type and thus to improve the machinability and mechanical properties of steel. With an excessive Te addition, no further improvement could be observed by scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS).
topic	MnS inclusion Te treatment sulfide inclusion inclusion control free-cutting steel
url	https://www.mdpi.com/1996-1944/12/7/1034
work_keys_str_mv	AT fengwang controlofmnsinclusionsinhighandlowsulfursteelbytelluriumtreatment AT haoguo controlofmnsinclusionsinhighandlowsulfursteelbytelluriumtreatment AT weiliu controlofmnsinclusionsinhighandlowsulfursteelbytelluriumtreatment AT shufengyang controlofmnsinclusionsinhighandlowsulfursteelbytelluriumtreatment AT shuozhang controlofmnsinclusionsinhighandlowsulfursteelbytelluriumtreatment AT jingsheli controlofmnsinclusionsinhighandlowsulfursteelbytelluriumtreatment
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Control of MnS Inclusions in High- and Low-Sulfur Steel by Tellurium Treatment

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