THE EVALUATION OF THE STRUCTURE AND HARDNESS OF DENTAL Ti-Zr ALLOYS
Many types of alloys are available as dental implants, but titanium and its alloys have been widely used due to their outstanding properties. In this research titanium alloys with different Zr contents were prepared by arc-melting. Phase identification was performed by XRD analysis. Microstructure was observed by light microscope aft...
By Ljerka Slokar, Anita Štrkalj, Zoran Glavaš
EEFFECT OF VARIATIONS IN CHEMICAL COMPOSITION ON QUALITY OF HOT ROLLED AND DRAWN WIRE
Ratio of ultimate tensile strength and yield stress shows lower values in cold drawn wire than in hot rolled state. The results of research addressing the effect of variations in chemical composition of continuous casted billets on mechanical properties of cold-formed wire used in production of steel mesh are presented. In the c...
By Šaban Žuna, Aida Mahmutovic, Faik Uzunović, Sead Spužić
INTERACTIONS AND PHENOMENA BETWEEN THE CARBON AND PRESENT ELEMENTS IN LIQUID IRON
The complicated reactions are appeared in the liquid iron under the influence of interaction parameters of basic and added elements during oxidation or addition of certain elements. These reactions may explain the appearance some of phenomena during the production with the negativeconsequences on the final material. Some phenomena as defe...
By Derviš Pihura, Derviš Mujagić, Dževad Nović
INFLUENCE OF HOLDING TIME ON AUSTENITIZATION TEMPERATURE ON GRAIN SIZE OF S355J2 STEEL
The austenitization is first operation at most operations of heat treatment, and it is implied heating steel on the austenitizing temperature and holding at this temperature while are not achieved completely transformation origin microstructure in austenite. Two base parameters which implicate at effect of austenitization are austeni...
By Armina Bašić, Almaida Gigović-Gekić, Hasan Avdušinović, Mustafa Hadžalić
ESTIMATION OF PARTICULATE MATTER CONCENTRATIONS AT SOME POPULATED CENTERS AROUND SHKODRA LAKE USING SYNERGISTICALLY IN-SITU MEASUREMENTS AND REMOTE SENSING TECHNIQUES
Lake of Shkodra as the largest lake in the Balkan Peninsula forms a relatively complex ecosystem. One of the most important indicators of this ecosystem is also the quality of air. Air quality can be estimated based on several viewpoints, using physical or chemical parameters. In this study, the work is based on estimation of particulate matter con...
By Jozef Bushati, Florian Mandija
SULFUR DIOXIDE AIR POLLUTION IN THE CITY OF ZENICA
In the city of Zenica steel is continuously produced more than 120 years. In all technological stages of production and processing of steel within integrated steel works large amounts of raw materials and fuels which contain a certain amount of sulfur are consumed. The flue gases formed during production and processing of steel contain certain conc...
By Sulejman Muhamedagić, Mirsada Oruč, Halim Prcanović
STRENGTHENING OF NITRONIC 60 GRADE OF STEEL BY COLD DRAWING
In this paper the effects of the deformation strengthening mechanism on mechanical attributes are evaluated (toughness is not treated) during cold drawing of a corrosionresistant austenitic steel NITRONIC 60. Experimental evidence indicates that the technological factors of cold working by drawing significantly affect both the intensity ...
By Faik Uzunović, Omer Beganović, Sead Spužić
MATERIAL STRENGTHENING IN FORMING FINAL TUBULAR PRODUCT FROM AL 99.5% BY FORWARD COLD FLOW FORMING
Final product of the cold forming process gain many advantages that are mostly produced by strengthening of the material in the process. Those advantages are primarily explained as improving mechanical characteristic of the work material. Forward cold flow forming is among those processes and it is mostly related to (forming) shaping...
By Sabahudin Ekinović, Ibrahim Plančić, Edin Begović, Himzo Đukić, Branka Muminović
APPLICATIONS OF THE ADDITIVE MANUFACTURING TECHNOLOGY TO MANUFACTURE THE KNEE IMPLANTS
The paper presents an application of the Additive Manufacturing (AM) technology using the Objet 3D Printer to develop femoral component of total knee endoprosthesis patterns for investment casting process. The goal of the paper is to outline the manufacturing technology intended for prototype production with the use of PolyJet technology and invest...
By Aleksandar Rajic, Slobodan Stojadinovic, Dorian Nedelcu, Ljubica Lazic Vulicevic
MAINTENANCE, PROTECTION AND DEVELOPMENT OF OPTIMUM QUALITY OF PACKED DRIED FRUITS
For exceptional demands of product quality, modern technological solutions allow that the nutritive value of food products, produced using a different technological processes, preserve and extend with application of a modified atmosphere. Using a combination of modified amtosfere, depending on the barrier properties of packaging materials, allows c...
By Ajka Aljilji, Dragana Živković, Nebija Aljilji