Influence of Boron on Crystallization and Microstructure of Ductile Cast Iron

The objective of the research was to determine the influence of boron on the crystallization process and microstructure of ductile cast iron. In the case of ductile cast iron it is a vital issue because even as little as trace presence of boron changes the properties of ductile cast iron in a signif...

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Main Authors: Dojka R., Studnicki A.
Format: Article
Language:English
Published: Polish Academy of Sciences 2017-06-01
Series:Archives of Foundry Engineering
Subjects:
Online Access:http://www.degruyter.com/view/j/afe.2017.17.issue-2/afe-2017-0043/afe-2017-0043.xml?format=INT
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author Dojka R.
Studnicki A.
author_facet Dojka R.
Studnicki A.
author_sort Dojka R.
collection DOAJ
description The objective of the research was to determine the influence of boron on the crystallization process and microstructure of ductile cast iron. In the case of ductile cast iron it is a vital issue because even as little as trace presence of boron changes the properties of ductile cast iron in a significant way. With the use of a new ATD-4 (TDA) tester and CRYSTALDIGRPAH converter it was possible to measure the crystallization process parameters of the same alloy with four different contents of boron in one mould. Four samples with different boron contents were extracted, their microhardness was measured and quantitative analysis of microstructure was conducted. Obtained results allowed to state that with increasing content of boron the amount of graphite precipitates decreases, the amount of pearlite precipitates increases, the shape of graphite precipitates deteriorates and hardness increases. It is also planned to perform additional testings with boron contents between previously tested values.
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spelling doaj.art-dba7ff19453d4a19bfac9a25dffd2d2e2023-09-03T03:20:28ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442017-06-01172152010.1515/afe-2017-0043afe-2017-0043Influence of Boron on Crystallization and Microstructure of Ductile Cast IronDojka R.0Studnicki A.1Department of Foundry, Silesian University of Technology , Towarowa 7, 44-100 Gliwice, PolandDepartment of Foundry, Silesian University of Technology , Towarowa 7, 44-100 Gliwice, PolandThe objective of the research was to determine the influence of boron on the crystallization process and microstructure of ductile cast iron. In the case of ductile cast iron it is a vital issue because even as little as trace presence of boron changes the properties of ductile cast iron in a significant way. With the use of a new ATD-4 (TDA) tester and CRYSTALDIGRPAH converter it was possible to measure the crystallization process parameters of the same alloy with four different contents of boron in one mould. Four samples with different boron contents were extracted, their microhardness was measured and quantitative analysis of microstructure was conducted. Obtained results allowed to state that with increasing content of boron the amount of graphite precipitates decreases, the amount of pearlite precipitates increases, the shape of graphite precipitates deteriorates and hardness increases. It is also planned to perform additional testings with boron contents between previously tested values.http://www.degruyter.com/view/j/afe.2017.17.issue-2/afe-2017-0043/afe-2017-0043.xml?format=INTSolidification processMetallographyDuctile cast ironBoronTDA
spellingShingle Dojka R.
Studnicki A.
Influence of Boron on Crystallization and Microstructure of Ductile Cast Iron
Archives of Foundry Engineering
Solidification process
Metallography
Ductile cast iron
Boron
TDA
title Influence of Boron on Crystallization and Microstructure of Ductile Cast Iron
title_full Influence of Boron on Crystallization and Microstructure of Ductile Cast Iron
title_fullStr Influence of Boron on Crystallization and Microstructure of Ductile Cast Iron
title_full_unstemmed Influence of Boron on Crystallization and Microstructure of Ductile Cast Iron
title_short Influence of Boron on Crystallization and Microstructure of Ductile Cast Iron
title_sort influence of boron on crystallization and microstructure of ductile cast iron
topic Solidification process
Metallography
Ductile cast iron
Boron
TDA
url http://www.degruyter.com/view/j/afe.2017.17.issue-2/afe-2017-0043/afe-2017-0043.xml?format=INT
work_keys_str_mv AT dojkar influenceofborononcrystallizationandmicrostructureofductilecastiron
AT studnickia influenceofborononcrystallizationandmicrostructureofductilecastiron