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Konovalenko I.V.,Pulyui Ternopil State Technical University | Marushchak P.O.,Pulyui Ternopil State Technical University
Optoelectronics, Instrumentation and Data Processing | Year: 2011

This paper analyzes the effect of changes in the key parameters of an algorithm for identifying cracks in images of rolls of continuous casting machines. The effects of the background threshold of binary conversion and the filter kernel size on the total error of calculations of geometric characteristics of cracks are considered. The range of crack lengths for which the developed algorithm is suitable is calculated based on experimental data. © 2011 Allerton Press, Inc. Source


Stukhlyak P.D.,Pulyui Ternopil State Technical University | Holotenko O.S.,Pulyui Ternopil State Technical University | Dobrotvor I.H.,Pulyui Ternopil State Technical University | Mytnyk M.M.,Pulyui Ternopil State Technical University
Materials Science | Year: 2015

We study the factors affecting the conditions of formation of adhesive contacts and the methods aimed at the improvement of the strength characteristics of adhesive joints of polymers with metallic base. The high efficiency of the microwave electromagnetic treatment for the modification of composite materials based on epoxy binder is demonstrated. The optimal duration of the microwave treatment of epoxy compositions is determined. © 2015 Springer Science+Business Media New York Source


Yasnii P.V.,Pulyui Ternopil State Technical University | Marushchak P.O.,Pulyui Ternopil State Technical University | Nikiforov Yu.M.,Pulyui Ternopil State Technical University | Hlad'O V.B.,Pulyui Ternopil State Technical University | Kovalyuk B.P.,Pulyui Ternopil State Technical University
Materials Science | Year: 2010

The influence of irradiation in a transparent condensed medium on the impact toughness of heat-resistant steels is investigated. The irradiation of a specimen in front of a concentrator causes a substantial increase (up to a factor of two) in the impact toughness of 15Kh13-F steel. Using fractographic analysis, we established that the steel was fractured by the intragranular mechanism independently of the irradiation scheme. The increase in the impact toughness of the material after shock-wave treatment is justified. © 2010 Springer Science+Business Media, Inc. Source

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