In the field of surface treatment, laser colour marking can be used to produce coloured marks on the surfaces of metals. Laser colour markings can be applied to various materials, but on titanium alloys a wide spectra of vivid colours can be achieved. This study presents an analysis of the corrosion properties of laser treated surfaces that were ex...
Uvod: V Sloveniji se z delno brezzobostjo sooča kar 80 % prebivalstva, 5 % prebivalcev pa se spopada s popolno brezzobostjo. Glede na rezultate raziskav bo starejša populacija čedalje večja in povpraševanje po protezah bo naraščalo. Dosedanja praksa je pokazala, da totalna proteza ni dosmrtna rešitev, saj je podvržena staranju, toda še vedno predst...
Zgradbe našega časa so opremljene z električno napeljavo, katere sestavni del so električni vodniki, le-ti pa so pogosto povezani tudi z nesrečami - požari. Zaradi kompleksnih pogojev prisotnih v požaru – torej med gorenjem različnih materialov nastanejo razmere, ki so lahko za vsak dogodek specifične. Prav zaradi tega, še vedno ni ustaljenih metod...
WC-Co cermet was plasma-nitrided with the assistance of a hollow cathode ion source at 400 °C under a vacuum of 3–8 Pa. Hot film chemical vapor deposition (HFCVD) of a diamond coating was carried out on the nitrided specimen, without chemical etching. Scanning electronic microscopy, electron probing microscopy, X-ray diffraction, and X-ray photoele...
Ti alloys are the most used metallic materials in the biomedical field due to their excellent biocompatibility associated with good corrosion resistance in body fluids and relatively low elastic modulus. However, the alloys used in the orthopedic area have an elastic modulus that is 2 to 4 times higher than that of human cortical bone. Searching fo...
In the present work, we investigated the possibility of introducing fine and densely distributed α-Al(MnFe)Si dispersoids into the microstructure of extruded Al-Mg-Si-Mn AA6082 alloys containing 0.5 and 1 wt % Mn through tailoring the processing route as well as their effects on room- and elevated-temperature strength and creep resistance. The resu...
The superalloy FGH98 was successfully diffusion bonded (DB) with medium-entropy alloy (MEA) Al3Ti3(CrCoNi)94 using pure Ni as the interlayer at a temperature range of 1050–1170 °C for 1 h under 5 MPa. The microstructure and mechanical properties of joints were investigated. The diffusion bonding seam was composed of an interlayer zone (IZ) and two ...
Copper slag (CS) remains a challenging industrial by-product with a relatively small utilization fraction. The present study investigated the development of one-part alkali-activated cements based on CS, ground granulated blast furnace slag (GGBS) and a mixture of the two as a precursor. We investigated 5 to 15 wt% solid sodium metasilicate (Na2SiO...
Aluminijeve zlitine z dodatkom litija so znane že skoraj 100 let. Uporabljajo jih v letalski in vesoljski industriji. Glavna prednost dodatka litija je zmanjšanje gostote in izboljšanje mehanskih lastnosti aluminijevih zlitin, še posebej modula elastičnosti in trdnosti le teh. Vsak dodani odstotek litija zmanjša gostoto zlitine za 3 %. Mehanske las...
V tem diplomskem delu smo obravnavali hitro strjeno zlitino tipa Al-Ni-La. Zastavljen cilj te naloge je bil uspešna izdelava zlitine in nadaljnja analiza le te s pomočjo različnih metod, da lahko ustrezno preučimo mikrostrukturo in določimo pomembne temperature pri katerih se zgodijo mikrostrukturne spremebe v materialu. Zlitino smo pripravili in i...
