Steels for rolling bearings are important in the world production of special steels. They are used for the production of rolling bodies and rings. Since these are very responsible parts in machine construction, high-quality standards are required for these steels. The service life of rolling bearings, in addition to working conditions also depends ...

By Almaida Gigovic-Gekic, Diana Ćubela, Hasan Avdusinovic, Amer Karic, Branka Muminovic

For die industry where future products have decisive roles for material selection, subject of steel is an area of ​​interest with high potential for innovation. With new production technologies that prioritize knowledge, the quality of materials has improved significantly and these developments continue. Material selection in die design is an impor...

By Aslan UNAL

The aim of the research conducted in this paper is to analyze the cadmium content in particulate matter PM10 for the period of 2020–2024, and thereby provide a realistic assessment of whether there has been a significant reduction in cadmium emissions into the atmosphere of Zenica due to the replacement of fossil fuels for the city’s he...

By Farzet Bikić, Halim Prcanović, Mirnes Duraković, Naida Bikić, Sanela Beganović

NdFeB (Neodymium-Iron-Boron) magnets are essential for technologies such as electric vehicles, wind turbines, and medical devices due to their high energy density. However, the growing demand for these magnets, coupled with the limited availability of rare earth elements (REEs), emphasizes the need for efficient recycling of end-of-life (EOL) NdFeB...

By Anıl Umut Özdemir, Umay Çınarlı Yavaş, Taner Akbay, Ahmet Turan

 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 Imamović, Mirsada Oruč, Omer Kablar, Dragana Agić, Alma Doglod

Phytoremediation with wild plant species could be environment friendly and economical solution. Selected wild plants like mint, oregano, chamomile, nettle and St. John’s wort, from rural area in Bosnia and Herzegovina, were collected, lyophilized and acid digested for heavy metals analysis. Nickel (Ni), copper (Cu), chromium (Cr), cadmium (Cd...

By Šaćira Mandal, Aida Šapčanin

Measuring the material's microhardness is generally easy and quick. However, since the operator reads the dimensions, i.e., the ends of the imprint formed in the material, the measurement result is greatly influenced by the operator's assessment. We present the research results in which three operators measured Vickers microhardness on the same imp...

By Melisa Baždar, Amra Salčinović Fetić, Belma Husković, Ajla Karić

This paper presents some aspects of the correlation between maintenance cost reduction and accidents—specifically, damages due to plastic deformation in steel constructions at production companies in Bosnia and Herzegovina. In the theoretical part, a tension testing diagram for typical structural steels (I, U, T, etc.) is used to explain the ...

By Faik Uzunović, Sead Spužić, Omer Beganović, Omer Beganović

The most abundant renewable biomass on the earth is lignocellulosic biomass supplying from the forestry, forestry residue, and agricultural wastes nearly annually 200 billion tones worldwide. Agricultural wastes encompass a lot of cellulose, lignin and hemicellulose in composite form. Cellulose, the most important part of a plant structure, is a re...

By Ayşenaz Onar, Zahra R. Navazi, Nebahat Aral Yılmaz

Fine alumina trihydrate (ATH) is the primary filler of environmentally acceptable flame retardants, artificial agate, and other products, in addition to being the raw material for alumina-based ceramics and catalyst carriers. This study aims to investigate the fine aluminum trihydrate precipitation process from sodium aluminate Bayer leach liquor b...

By Sıla Meva Elitaş, Batuhan Dikici, Ali Ergüzeloğlu, Bayram Güneş, Hatice Kubra AKBEN