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In this paper, the possibility of implementation of the infrared thermography as a technical systems’ diagnostic method is investigated. The infrared thermography as a contemporary method was used for visualization of the working conditions in the piston of an automotive engine as well as for analyzing of the thermal changes the piston sustained under exploitation. The obtained results were used to define the properties of the alloy used for production of the piston for a highly loaded diesel engine. In such way, the problems caused by erroneous choice of the material could be avoided.

The copper alloy with 7vol.% ZrB2 examined in this study was consolidated via powder metallurgy processing (PM) by combining mechanical alloying and hot pressing process. Structural changes, morphological properties and elemental analysis of the hotpressed samples were studied as a function of milling time with the use of X-ray diffraction, scanning electron microscopy (SEM) equipped with an energy dispersive X-ray spectrometry (EDS). Also, mechanical properties of the Cu-7vol.%ZrB2 alloy was investigated. Distribution of ZrB2 particles and presence of agglomerates in the Cu matrix directly depend on the milling time and show strong influence on hardness, compressive and electrical properties of Cu-ZrB2 alloys. [Projekat Ministarstva nauke Republike Srbije, br. 172005]

Theoretical aspects of kinetics and transport phenomena during the hillocks formation and growth in thin Al films are discussed. Following the suggested methodology, the conceptual relationship of step by step linear and/or parabolic law for hillock volume changes ΔV with time t:(where n = 1 and/or ½; K is the changeable coefficient and (i) is the appropriate time sequence) is proposed.Finally, using the experimental measurements from S.