Features of metal structures digital images containing carbides investigation
Keywords:metal structure, carbides, images, digital processing, grayscale image, contrasting, adaptive contrasting, binarization, histogram
The analysis of microsections requires the involvement of highly qualified experts in the field of materials science, which, in turn, does not exclude the influence of the "human factor". On the other hand, the issues of increasing the objectivity of identifying the properties of metals and alloys require the use of modern data processing methods, for example, artificial intelligence in solving problems of classification and identification of macro and micro structures.The paper presents an overview of studying macro and micro structures containing carbides process, determining the specific features inherent in these images, and proposing an information model for their processing. The article is devoted to the development of an information model intended for the analysis of metal structures digital images with carbide inclusions. The analysis of literary sources is carried out, it is established that the study of metal structures is an important tool for assessing qualitative characteristics. The presence of carbides in the metal structure has a significant impact on its quality. A review of the methodology for studying the structure of a metal is given, and the importance of metal structures image processing stage is determined. The main methods for obtaining digital images of the alloy structure are described. Samples of metal structures with carbides are presented. A procedure for digital processing of metal structures images with kibide inclusions is proposed, which consists of image conversion to grayscale, contrasting, and threshold binarization. An analysis of the results of metal structures processing images made it possible to identify areas with carbide inclusions, however, additional artifacts that were not carbides were found in some images. Balancing by the binarization threshold in this case does not improve the detection of carbide inclusions network due to the lack of contrast. Histograms demonstrate the presence of information features in a wide range of gray colors, so for this class of images, more sophisticated image processing technologies need to be developed. In the course of digital images features study of metals and alloys metal structures containing carbides, it was: an information model for processing metal structures containing carbide inclusions is proposed; the proposed information model is applied to digital images of metal structures; it was found that some images of metal structures are characterized by low contrast, which leads to the selection of background artifacts, except for areas with carbide inclusions; the development of complex mathematical methods for the detection of carbide inclusions in images of metal structures characterized by low contrast is proposed. Thus, the article shows the results of carbide inclusions of the using the digital image processing procedure. The advantages and disadvantages of the approach are shown, the directions for its improvement are determined.
Bolshakov V.I., Suhomlin G.D., Lauhin D. V. Atlas struktur metallov i splavov. - Dnepropetrovsk: GVUZ «PGASA», 2010. 174 s.: s il.
Comparative Analysis of Image Quality for Low-Light Cameras in Low Light Conditions / J.Kocic, M. Radisavljevic, S. Vujic, I. Popadic. // Proc. of the 60th ETRANConference. – 2016.
Kyung-Woo K. Evaluation of camera performance using ISO-based criteria / K. Kyung-Woo, P. Kee-Hyon, H. Yeong-Ho. // 16th Color and Imaging Conference Final Program and Proceedings. – 2008. – С. 238–242.
Wueller D. Proposal for a Standard Procedure to Test Mobile Phone Cameras / Dietmar Wueller. // Proc. of SPIE-IS&T Electronic Imaging. – 2006.
UL2802 –"Camera Performance Measurement", 2013.
ISO 12233 –"Photography—Electronic still-picture cameras -Resolution measuements", 2000.
Gonsales R. Tsifrovaya obrabotka izobrazheniy v srede MATLAB / R. Gonsales, R.Vuds, S. Eddins. – M.: Tehnosfera, 2006. - 616s
Geller Yu.A. Instrumentalnyie stali./ Yu.A. Geller. – M.: Metallurgiya, 1983. –
S. 191-201, 322 – 393.
Lahtin Yu.M. Materialovedenie. / Yu.M. Lahtin, V.P. Leonteva. - M.: Mashino-stroenie, 1991. – 487 s.
Paholyuk A.P. Osnovi materIaloznavstva i konstruktsiyni materiali /A.P. Paholyuk, O.A. Paholyuk. – Lviv: vidavnitstvo “Svit”, 2005. – 172s.
Gulyaev A.P. Metallovedenie / A.P.Gulyaev. – M.: Metallurgiya, 1986. – 851s.
Materialovedenie / Pod red. B.N.Arzamasova. – M.: Mashinostroenie, 1986. – 611s.
Tehnologiya konstruktsionnyih materialov/ Pod red. A.M.Dalskogo. – M.: Mashinostroenie 1999. – 764s.
Pintaude G. Study On The Performance Of High Chromium Cast Iron Balls With Varied Carbide Fractions And Matrix Microstructures / G. Pintaude, E. Albertin, A. Sinatora. // International Congress on Abrasion Wear Resistant Alloyed White Cast Iron for Rolling and Pulverizing Mills. – 2002.
Alp T. Microstructure-Property Relationships in Cast Irons / T. Alp, A. Wazzan, F. Yilmaz. // The Arabian Journal for Science and Engineering. – 2005. – С. 163–175.
Microstructure and Nanochemistry of Carbide Precipitates in High-Speed Steel S 6-5-2-5 / E.Pippel, J. Woltersdorf, G. Pöckl, G. Lichtenegger. // MATERIALS CHARACTERIZATION. – 1999. – №43. – С. 41–55.
Seliverstov V.Yu. Teoreticheskie i tehnologicheskie osnovyi gazodinamicheskogo vozdeystviya na metall, zatverdevayuschiy v liteynoy forme : dis. dokt. tehn. nauk : 05.16.04 / Seliverstov Vadim Yurevich – Dnepr, 2011. – 406 s.
This work is licensed under a Creative Commons Attribution 4.0 International License.