ABSTRACT Safety management is the implementation of activities that guarantee the achievement of high safety standards in accordance with minimum regulatory requirements. The premises of the Zenica steelwork are classified, from the point of view of safety and health protection, as hazardous areas. Occupational safety and health tasks are or...

By AIDA IMAMOVIC

The production of titanium is very expensive, so it is interesting to research technologiesthat require lower costs, such as the HDH hydrogenation-dehydrogenation processtechnology, which is used for cheaper powder production from the waste material oftitanium alloys.This paper presents the hydrogenation procedure of a recycled piece of the Ti6Al7N...

By Aida Imamović, Mirsada Oruč, Šaban Žuna, Esad Hadžibulić

Steel S690 QL is a high-strength quenched and tempered, fine-grained structural steel with a minimum yield strength of ReH of 690 MPa and with guaranteed toughness (Charpy) for rolled plates with a thickness of 3 to 50 mm. This paper presents the examination and analysis of the microstructure and grain size results after quenching an...

By Mirsada Oruč, Aida Imamović, Almaida Gigovic-Gekic, Milenko Rimac

More recently modified stainless steels have been used to produce various structural elements that work in complex operating conditions. Stainless steel X8CrNiS18-9 (standard EN 10088-3: 2005) is the most commonly used austenitic stainless steel due to its good machinability. This steel has high mechanical and working properties than...

By Derviš Mujagić, Aida Imamović, Mustafa Hadžalić

The basic characteristics of the chemical composition of steel with improved machinability (X8CrNiS18-9) are the increased content of sulphur (0.15-0.45%), phosphorus (0.07-0.11%) and manganese (0.5-1.5%). Sulphur by creating sulphide inclusions reduces friction and cutting resistance, and increases the brittleness of the chip.Considering its harmf...

By Derviš Mujagić, Aida Imamović, Mustafa Hadžalić

Dual phase steels are low carbon steels which are thermo-mechanically processed to getting better formability and toughness than ferrite-perlite steels with similar tensile strength. The microstructure of these steels consisting of a ferrite matrix with hard martensitic/ bainitic second phase. The concept of representative volume element (RVE) is c...

By Emina Vardo, Aida Imamović, Jessica Gola

Many researches are done for finding various ways of improving steel properties, since it's the most used material in the world. Instead of using high-alloyed steels, which are expensive, microalloying of carbon steels that will retain equal properties is an efficient replacement. For this research it was tested melts of low-carbon steel grade SAE ...

By Aida Imamović, Adna Puljić, Omer Kablar

This work aims at the development of low-carbon steel SAE 1006 through the microalloying addition of boron. Boron as alloying element is added in small amount, but it has significant effect on changes of properties of this kind of steel. The research is based on mechanical and microstructural testing of final product (wire) from the aspect of the i...

By Aida Imamović, Alma Puljić, Omer Kablar

The chemical composition of casting is an important factor affecting the shape of graphite and the mechanical properties and microstructure of the metal base. Different elements have different influence to casting properties. All elements that affect the microstructure development during casting solidification have significant influence on mechanic...

By Aida Imamović, Hasan Avdušinović, Anida Henjaković