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Digital Microstructure Analysis System for Testing and Quantifying the Ductile Cast Iron
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 19 - Number 3 |
| Year of Publication: 2011 |
| Authors: Pattan Prakash, V. D. Mytri, P. S. Hiremath |
10.5120/2342-3062
|
Pattan Prakash, V. D. Mytri, P. S. Hiremath . Digital Microstructure Analysis System for Testing and Quantifying the Ductile Cast Iron. International Journal of Computer Applications. 19, 3 ( April 2011), 22-27. DOI=10.5120/2342-3062
Abstract
In this paper, we propose an automatic digital microstructure image analysis system to qualify and quantify the graphite in the form of nodular shape in ductile cast iron material based on ASTM E2567–11 standard specifications. The ASTM E2567-11 standard is for determining the nodularity and nodule count in ductile iron using image analysis method. The proposed system can distinguish between the two forms of graphite grains from microstructure images of ductile cast iron, namely, ‘nodular’ and ‘non-nodular’, based on the nodularity shape factor value. The proposed method implements the standard test procedure, proposed by ASTM E2567-11 standard. The proposed system is tested on various microstructure images of ductile cast iron. The images are obtained from the light optical microscope. The results are consistent over a wide range of images (in terms of resolution, noise and composition) in comparison with manual method. The results are compared with expert methods and they are found to be very close, reliable and reproducible in nature. The paper also demonstrates the inconsistencies and unreliability of manual method.
References
- Wanda Benesova, Alfred Rinnhofer and Gerhard Jacob. Determining the Average Grain Size of Super-Alloy Micrographs. In Proc. of IEEE International conference on Image Processing (ICIP 2006),2749-2752.Atlanta, USA, 2006.
- George Vander Voort, http://www.georgevandervoort.com/mic_met_pdf/ IntroToStereologyGrainSize.pdf and http://www.georgevandervoort.com/mic_met_pdf/ IntroToStereologySizeShape.pdf.
- ASM International Handbook Committee, ASM Handbook, Metallography and Microstructures, Vol 9, ASM International, USA, 2004.
- Microstructure Library: http://www.doitpoms.ac.uk/miclib/index.php
- T.F. Chan and L. Vese, IEEE Trans. on Image Processing, Vol. 10, No. 2, pp 266-277, 2001.
- Vander Voort G.F. Metallography: Principles and Practice, ASM International, 1999.
- Xaviour Arnold, Michel Coster, Jean-Louis Chermant, Liliane Chermant, Thierry Chartiers & Abder Elmoataz. Segmentation and Grain Size of Ceramic. Image Anal Stereol,131-135, France, 2001.
- Leonard E. Samuels, Light Microscopy of Carbon Steels, ASM International, USA, 1999.
- Milan Sonka, Vaclav Hlavac and Roger Boyle. Image Processing, Analysis, and Machine Vision, 2e. PWS Publishing. India,1999.
- B.I. Imasogie and U.Wend, Characterization of Graphite Particle Shape in Spheroidal Graphite Iron using a Computer-Based Image Analyzer, Journal of Minerals & Materials Characterization & Engineering , Vol. 3, No.1, pp 1-12, 2004.
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