TY - JOUR
T1 - Investigation of Cast Iron Matrix Constituents by Magnetic Adaptive Testing
AU - Vertesy, G.
AU - Tomas, I.
AU - Skrbek, B.
AU - Uchimoto, T.
AU - Takagi, T.
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported in part by the Hungarian Scientific Research Fund under Project K 111662, in part by the Researcher Exchange Program between the Japan Society for Promotion of Science and Hungarian Academy of Sciences, in part by the Researcher Exchange Program between the Czech Academy of Sciences and Hungarian Academy of Sciences, and in part by the JSPS Core-to-Core Program “Advanced Research Networks: International Research Core on Smart Layered Materials and Structures for Energy Saving.” The work of I. Tomáš and B. Skrbek was supported by of the Czech Science Foundation under Project 14-36566G and in part by the Long-Term Conceptual Development of Research Institutes through the Project of the Institutional Endowment, as provided by the Ministry of Education, Youth and Sports of the Czech Republic in 2016, respectively.
Publisher Copyright:
© 1965-2012 IEEE.
PY - 2019/3
Y1 - 2019/3
N2 - Two types of cast iron materials - flake graphite cast iron and ductile cast iron - were investigated by the method of magnetic adaptive testing, which is based on the systematic measurement and the evaluation of minor magnetic hysteresis loops. In all cases, even within the same type of material rather big differences existed considering both the chemical composition and the material structure of the investigated sample series. The matrix structure was determined by traditional metallographic examination, and these values were compared with the non-destructively measured magnetic parameters. It was shown that the relative pearlite volume fraction of the metallic matrix of cast iron samples could be determined by this method with a good reliability. The same is true also for the relative chill content of the matrix, as long as the samples contain chill at all. A general expression was found to characterize those correlations, which do not depend on the actual sample and neither on the applied parameters of the concrete magnetic measurement.
AB - Two types of cast iron materials - flake graphite cast iron and ductile cast iron - were investigated by the method of magnetic adaptive testing, which is based on the systematic measurement and the evaluation of minor magnetic hysteresis loops. In all cases, even within the same type of material rather big differences existed considering both the chemical composition and the material structure of the investigated sample series. The matrix structure was determined by traditional metallographic examination, and these values were compared with the non-destructively measured magnetic parameters. It was shown that the relative pearlite volume fraction of the metallic matrix of cast iron samples could be determined by this method with a good reliability. The same is true also for the relative chill content of the matrix, as long as the samples contain chill at all. A general expression was found to characterize those correlations, which do not depend on the actual sample and neither on the applied parameters of the concrete magnetic measurement.
KW - Cast iron
KW - magnetic adaptive testing (MAT)
KW - magnetic non-destructive evaluation (NDE)
KW - pearlite content
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U2 - 10.1109/TMAG.2019.2892683
DO - 10.1109/TMAG.2019.2892683
M3 - Article
AN - SCOPUS:85062212837
VL - 55
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 3
M1 - 8630686
ER -