MANUFACTURING AND CHARACTERIZATION OF Ti6Al4V ALLOY BY SELECTIVE LASER MELTING
Titanium and its alloys, particularly Ti6Al4V, are widely used, especially in aerospace andmedicine due to their relatively low density, high strength, and good corrosion resistance. However,there are formidable challenges in casting, forming, and machining titanium alloys, which result infinal products that are considerably more expensive. Additiv...
By Matija Zorc, Aleš Nagode, Maja Pogačar, Blaž Karpe, Borut Kosec, Milan Bizjak
THERMAL PROPERTIES OF COPPER BASE SHAPE MEMORY ALLOY
The mechanical properties and microstructure of copper base shape memory alloys are relatively well known, while data on thermal properties (thermal conductivity, specific heat, and temperature conductivity) are not available. In the frame of our investigation work thermal properties of rapidly solidified Cu-Al-Ni-Mn alloy were deter...
By Borut Kosec, Blaž Karpe, Milan Bizjak, Ladislav Vrsalović, Diana Ćubela, Mirko Gojić, Ivana Ivanić, Stjepan Kožuh
THERMAL PROPERTIES OF ARMOUR STEEL
The presented investigation work investigates thermal properties of the ultra-high hardness (UHH) armour steel. Steel is distinguished with high hardness and strength. It is sold in the quenched or tempered state, because achieving planned hardness which has to be between 590 HB and 640 HB. In the frame of the investigation work the analysis of the...
By Borut Kosec, Tjaša Kranjec, Blaž Karpe, Aleš Nagode, Milan Bizjak, Jure Bernetič, Mirko Gojić, Zijah Burzić, Milan Rimac, Gorazd Kosec
ANALYSIS OF Cu-Al-Mn SHAPE MEMORY ALLOYS AFTER CASTING IN MOULDS
Shape memory alloys (SMAs) are advanced functional materials suitable for technical applications. Among them Cu-Al-Mn alloy is a promising candidate for industry applications (mechanical engineering, electro-engineering etc.) due to their ductility. In this work analysis of the Cu-Al-Mn alloy after smelting and casting in the laborat...
By Mirko Gojić, Stjepan Kožuh, Ivana Ivanić, Tamara Holjevac-Grgurić, Robert Pezer, Ivan Anžel, Borut Kosec, Milan Bizjak, Ladislav Vrsalović, Dragana Živković
EFFECT OF HEAT TREATMENT ON CHARPY IMPACT ENERGY OF MICROALLOYED HSLA STEEL NIOMOL 490K
High strength low alloy (HSLA) steels represents a group of low carbon steels that utilise small amaunts of alloying elements, such as Mo, Ti, V and Nb, to attain yield strengths in excess of 275 MPa in the as rolled condition. The main properties of HSLA steels that make them for wide variety of applications are: strength and toughn...
By Gorazd Kosec, Jelena Vojvodić-Tuma, Mirko Gojić, Borut Kosec, Milan Bizjak, Aleš Nagode
DEPOSITION OF Al THIN FILM ON FeCrAl ALLOY AND CONTINUOUS ELECTRICAL RESISTANCE MEASUREMENT
FeCrAl alloys are used in a wide range of resistance and high-temperature applications such as wire heaters, furnace structure parts, etc. Their oxidation resistance at elevated temperatures relies on the formation of a thin and a continuous Al2O3 layer on the alloy surface. Growth and thickness of the protective Al2O3 layer depends ...
By Stojana Vesković, Janez Kovač, Peter Panjan, Damjan Klobčar, Milan Bizjak, Blaž Karpe
DEVICE FOR IN-SITU DETECTION OF MICROSTRUCTURAL TRANSFORMATIONS
Innovative idea of the device for detecting microstructure changes, concept and construction was carried out and controlled by authors of this article in cooperation with Slovenian industry. Since the electrical resistance is one of the most structurally sensitive properties of the materials, we used its measurement to detect microstructural change...
By Milan Bizjak, Blaž Karpe, Borut Kosec, Aleš Nagode, Goran Brovč, Mirko Gojić