THE INFLUENCE OF CHEMICAL COMPOSITION ON THE CORROSION RATE OF HIGH-CHROMIUM CAST IRON

The influence of the chemical composition on the corrosion rate of high-chromium cast iron was researched. During the castings’ cooling process the replacement of the atoms of nickel, iron and manganese by the atoms of chromium in the carbides took place. As a result, the areas with reduced chromium...

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Main Authors: V. V. Netrebko, I. P. Volchok
Format: Article
Language:English
Published: Belarusian National Technical University 2017-01-01
Series:Litʹë i Metallurgiâ
Subjects:
Online Access:https://lim.bntu.by/jour/article/view/1543
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author V. V. Netrebko
I. P. Volchok
author_facet V. V. Netrebko
I. P. Volchok
author_sort V. V. Netrebko
collection DOAJ
description The influence of the chemical composition on the corrosion rate of high-chromium cast iron was researched. During the castings’ cooling process the replacement of the atoms of nickel, iron and manganese by the atoms of chromium in the carbides took place. As a result, the areas with reduced chromium content were formed near carbides. After decreasing the chromium content in these areas below 12% the corrosion processes activated. Using the mathematical experimental design techniques the regression dependence between the corrosion rate of the cast irons and content of C, Cr, Mn and Ni in them was established. The conducted research showed that the minimum corrosion rate was observed in the cast iron containing: 1.09% C, 25.57% Cr, 0.6% Mn and 1.87% Ni. The obtained results allow predicting the corrosion rate of the high-chromium cast irons alloyed with Mn and Ni and may be used while establishing the new compositions of wear-resistant materials.
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spelling doaj.art-dcb1820f7c064e0d86f50a818cf28d812022-12-22T04:31:32ZengBelarusian National Technical UniversityLitʹë i Metallurgiâ1683-60652414-04062017-01-010438431534THE INFLUENCE OF CHEMICAL COMPOSITION ON THE CORROSION RATE OF HIGH-CHROMIUM CAST IRONV. V. Netrebko0I. P. Volchok1Zaporizhzhya National Technical UniversityZaporizhzhya National Technical UniversityThe influence of the chemical composition on the corrosion rate of high-chromium cast iron was researched. During the castings’ cooling process the replacement of the atoms of nickel, iron and manganese by the atoms of chromium in the carbides took place. As a result, the areas with reduced chromium content were formed near carbides. After decreasing the chromium content in these areas below 12% the corrosion processes activated. Using the mathematical experimental design techniques the regression dependence between the corrosion rate of the cast irons and content of C, Cr, Mn and Ni in them was established. The conducted research showed that the minimum corrosion rate was observed in the cast iron containing: 1.09% C, 25.57% Cr, 0.6% Mn and 1.87% Ni. The obtained results allow predicting the corrosion rate of the high-chromium cast irons alloyed with Mn and Ni and may be used while establishing the new compositions of wear-resistant materials.https://lim.bntu.by/jour/article/view/1543cast ironchromiumalloyingstructurecorrosion
spellingShingle V. V. Netrebko
I. P. Volchok
THE INFLUENCE OF CHEMICAL COMPOSITION ON THE CORROSION RATE OF HIGH-CHROMIUM CAST IRON
Litʹë i Metallurgiâ
cast iron
chromium
alloying
structure
corrosion
title THE INFLUENCE OF CHEMICAL COMPOSITION ON THE CORROSION RATE OF HIGH-CHROMIUM CAST IRON
title_full THE INFLUENCE OF CHEMICAL COMPOSITION ON THE CORROSION RATE OF HIGH-CHROMIUM CAST IRON
title_fullStr THE INFLUENCE OF CHEMICAL COMPOSITION ON THE CORROSION RATE OF HIGH-CHROMIUM CAST IRON
title_full_unstemmed THE INFLUENCE OF CHEMICAL COMPOSITION ON THE CORROSION RATE OF HIGH-CHROMIUM CAST IRON
title_short THE INFLUENCE OF CHEMICAL COMPOSITION ON THE CORROSION RATE OF HIGH-CHROMIUM CAST IRON
title_sort influence of chemical composition on the corrosion rate of high chromium cast iron
topic cast iron
chromium
alloying
structure
corrosion
url https://lim.bntu.by/jour/article/view/1543
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