Analysis of Microstructure Images Referred to Percolation Theory

• Autorzy: Trzaskowski W. , Sobaszek W. , Myszka D. , Świłło S.

Identyfikatory

DOI

10.1515/afe-2015-0020

• Języki publikacji: EN

Abstrakty

EN

The paper discusses possible applications of the percolation theory in analysis of the microstructure images of polycrystalline materials. Until now, practical use of this theory in metallographic studies has been an almost unprecedented practice. Observation of structures so intricate with the help of this tool is far from the current field of its application. Due to the complexity of the problem itself, modern computer programmes related with the image processing and analysis have been used. To enable practical implementation of the task previously established, an original software has been created. Based on cluster analysis, it is used for the determination of percolation phenomena in the examined materials. For comparative testing, two two-phase materials composed of phases of the same type (ADI matrix and duplex stainless steel) were chosen. Both materials have an austenitic - ferritic structure. The result of metallographic image analysis using a proprietary PERKOLACJA.EXE computer programme was the determination of the content of individual phases within the examined area and of the number of clusters formed by these phases. The outcome of the study is statistical information, which explains and helps in better understanding of the planar images and real spatial arrangement of the examined material structure. The results obtained are expected to assist future determination of the effect that the internal structure of two-phase materials may have on a relationship between the spatial structure and mechanical properties.

Słowa kluczowe

EN

percolation theory; austenitic structure; ferritic structure; duplex steel; ADI; image analysis; cluster analysis

PL

teoria perlokacji; struktura austenityczna; struktura ferrytyczna; stal duplex; ADI; analiza obrazu; analiza skupień

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2015
• Tom: Vol. 15, iss. 1
• Strony: 109--112
• Opis fizyczny: Bibliogr. 6 poz., rys., tab., wykr.

Twórcy

autor

Trzaskowski W.

• Department of Metal Forming and Casting, Institute of Manufacturing Technology, Faculty of Production Engineering, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warsaw, Poland

autor

Sobaszek W.

• Department of Metal Forming and Casting, Institute of Manufacturing Technology, Faculty of Production Engineering, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warsaw, Poland

autor

Myszka D.

• Department of Metal Forming and Casting, Institute of Manufacturing Technology, Faculty of Production Engineering, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warsaw, Poland

autor

Świłło S.

• Department of Metal Forming and Casting, Institute of Manufacturing Technology, Faculty of Production Engineering, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warsaw, Poland

Bibliografia

• [1] Myszka, D., Kaczorowski, M., Tybulczuk, J. (2003). Spheroidal graphite iron ausferritic - directly austempered. Kraków: Wyd. Instytutu Odlewnictwa.
• [2] Biernacki, R. Kozłowski, J., Myszka, D. & Perzyk, M. (2006). Prediction of properties of ductile iron assisted by artificial neural networks, Material Science – Medziagotyra. 12(1), 11-15.
• [3] Zallen, R. (1994). Physics of amorphous solid. Warszawa: Wydawnictwo Naukowe PWN.
• [4] Golak, J. (2008). Simple issues percolation.
• [5] Dobrzański, L.A., Osojca, M. (2003). The structure and properties of steel DUPLEX X2CrNiMoN22-5-3, In 12th Scientific International Conference Achievements in Mechanical and Materials Engineering, 7-10 December (pp. 249-252). Gliwice – Zakopane, Poland: World Academy of Materials and Manufacturing Engineering.
• [6] Bhadesha, H.K.D.H. (2007). The Nature, Mechanism and Properties of Strong Bainite, Procceding of the 1st International Symposium on Steel Science (IS3 2007), The Iron and Steel Institute of Japan.