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
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
MICROSTRUCTURE AND PROPERTIES OF KINETICALLY ACTIVATED BAINITE (KAB) STEELS
KAB steels are a newly developed grade of advanced ultra high strength steels, which distinguish themselves by the rapid formation of fine nanostructured carbide free lower bainite. The term nanostructured is used with respect to the thickness of the individual bainitic ferrite plates which can vary between 50 nm to as fine as a few ...
By Peter Kirbiš, Mihael Brunčko, Ivan Anžel
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
A COMPARATIVE ANALYSIS OF BRONZE LAYER ON BEARING SLEEVE
Oil pump, apropos gear pump is used for lubrication in the automotive industry. In the process of the engine, and the oil pump, there is rotation of the shaft and without bearing sleeve there would be „spending”casing which is made of cast iron. The bearing sleeve is mounted in order to reduce wear and ensure the consiste...
By Belma Fakić, Adisa Burić, Edib Horoz, Amira Pašalić, Elvedin Ćosatović
ALTERNATIVE STEEL PRODUCTION DIRECT REDUCTION PROCESSES MIDREX DIRECT REDUCTION AT: ARCELORMITTAL HAMBURG
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By Mohammad Safi
SIGNIFICANCE AND CHANGES OF THE STANDARD ISO 9001
ISO 9001 is an international standard that includes requirements for a quality management system in a business organization that it must meet in order to operate in compliance with internationally recognized standards. Benefits of implementing this standard in organizations are large and besides the ability to sell and produce t...
By Mirsada Oruč, Dragana Agić, Fuad Klisura, Neira Delić
NEW TECHNOLOGIES IN THE FIELD OF REFRACTORY MATERIALS
Refractory demand is driven by growth in emerging markets, new processing technologies and products in the customers industries mainly iron and steel, cement, lime, non-ferrous metals, glass, environmental, chemical and energy industry. The need for high-quality refractory solutions for particular applications is steadily rising. Ste...
By Christian Majcenovic
STANDARDIZATION OF NANOMATERIALS AND NANOTECHNOLOGY
Nanotechnology relates to the production and management of the materials whose phases dimensions are (grains of structure and manufactured of layers) up to 100 nm. Nanotechnology and nanomaterials lead to major breakthroughs in many areas of scientific research with practical application in the industrial sector. The global mark...
By Mirsada Oruč, Sulejman Muhamedagić, Almaida Gigović-Gekić, Raza Sunulahpašić
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