Effect of Sr and Sb Modification on the Microstructure and Mechanical Properties of 226 Silumin Pressure Casts

The work presents the effect of strontium and antimony modification on the microstructure and mechanical properties of 226 silumin casts. The performed research demonstrated that strontium causes high refinement of silicon precipitations in the eutectic present in the microstructure of the examined...

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Main Authors: Szymczak T., Gumienny G., Pacyniak T.
Format: Article
Language:English
Published: Polish Academy of Sciences 2015-03-01
Series:Archives of Foundry Engineering
Subjects:
Online Access:http://www.degruyter.com/view/j/afe.2015.15.issue-1/afe-2015-0019/afe-2015-0019.xml?format=INT
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author Szymczak T.
Gumienny G.
Pacyniak T.
author_facet Szymczak T.
Gumienny G.
Pacyniak T.
author_sort Szymczak T.
collection DOAJ
description The work presents the effect of strontium and antimony modification on the microstructure and mechanical properties of 226 silumin casts. The performed research demonstrated that strontium causes high refinement of silicon precipitations in the eutectic present in the microstructure of the examined silumin and it significantly affects the morphology of eutectic silicon from the lamellar to the fibrous one. Sr modification also causes an increase of: the tensile strength „Rm” by 12%; the proof stress „Rp0,2” by 5%; the unit elongation „A” by 36% and the hardness HB by 13%. Antimony did not cause a change in the microstructure of the silumin, yet it caused an increase in Rm and HB by 5%, in Rp0,2 by 7% and in A by 4%.
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spelling doaj.art-6fbb3c130aae4494b2455188230a41c62023-09-03T00:54:49ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442015-03-0115110510810.1515/afe-2015-0019afe-2015-0019Effect of Sr and Sb Modification on the Microstructure and Mechanical Properties of 226 Silumin Pressure CastsSzymczak T.0Gumienny G.1Pacyniak T.2Department of Materials Engineering and Production Systems, Lodz University of Technology, Stefanowskiego 1/15, 90-924 Łódź, PolandDepartment of Materials Engineering and Production Systems, Lodz University of Technology, Stefanowskiego 1/15, 90-924 Łódź, PolandDepartment of Materials Engineering and Production Systems, Lodz University of Technology, Stefanowskiego 1/15, 90-924 Łódź, PolandThe work presents the effect of strontium and antimony modification on the microstructure and mechanical properties of 226 silumin casts. The performed research demonstrated that strontium causes high refinement of silicon precipitations in the eutectic present in the microstructure of the examined silumin and it significantly affects the morphology of eutectic silicon from the lamellar to the fibrous one. Sr modification also causes an increase of: the tensile strength „Rm” by 12%; the proof stress „Rp0,2” by 5%; the unit elongation „A” by 36% and the hardness HB by 13%. Antimony did not cause a change in the microstructure of the silumin, yet it caused an increase in Rm and HB by 5%, in Rp0,2 by 7% and in A by 4%.http://www.degruyter.com/view/j/afe.2015.15.issue-1/afe-2015-0019/afe-2015-0019.xml?format=INTTheoretical basics for casting processesPressure castingModificationMechanical properties
spellingShingle Szymczak T.
Gumienny G.
Pacyniak T.
Effect of Sr and Sb Modification on the Microstructure and Mechanical Properties of 226 Silumin Pressure Casts
Archives of Foundry Engineering
Theoretical basics for casting processes
Pressure casting
Modification
Mechanical properties
title Effect of Sr and Sb Modification on the Microstructure and Mechanical Properties of 226 Silumin Pressure Casts
title_full Effect of Sr and Sb Modification on the Microstructure and Mechanical Properties of 226 Silumin Pressure Casts
title_fullStr Effect of Sr and Sb Modification on the Microstructure and Mechanical Properties of 226 Silumin Pressure Casts
title_full_unstemmed Effect of Sr and Sb Modification on the Microstructure and Mechanical Properties of 226 Silumin Pressure Casts
title_short Effect of Sr and Sb Modification on the Microstructure and Mechanical Properties of 226 Silumin Pressure Casts
title_sort effect of sr and sb modification on the microstructure and mechanical properties of 226 silumin pressure casts
topic Theoretical basics for casting processes
Pressure casting
Modification
Mechanical properties
url http://www.degruyter.com/view/j/afe.2015.15.issue-1/afe-2015-0019/afe-2015-0019.xml?format=INT
work_keys_str_mv AT szymczakt effectofsrandsbmodificationonthemicrostructureandmechanicalpropertiesof226siluminpressurecasts
AT gumiennyg effectofsrandsbmodificationonthemicrostructureandmechanicalpropertiesof226siluminpressurecasts
AT pacyniakt effectofsrandsbmodificationonthemicrostructureandmechanicalpropertiesof226siluminpressurecasts