SYNERGY BY MOLYBDENUM AND NIOBIUM ON PERFORMANCE OF COLD WORK TOOL STEELS
For the die industry, where future products have a decisive role in material selection, the subject of steel is an area of interest with high innovation potential. With new production and processing technologies that prioritize knowledge, the quality of materials has improved significantly, and these developments continue. Material selection in die...
By Aslan Unal
DUCTILITY CAPACITY STUDY OF LARGE-SCALE, BUCKLING-RESTRAINED BRACES IN STEEL STRUCTURES
One of the new methods of anchoring steel structures is the use of large-scale buckling-restrained braces (BRBs) on the lateral system of this type of structure. This study investigates the behavior of BRBs and compares them with buckling braces. In this study, a two-dimensional frame with four stories and four spans was taken and analyzed in eight...
By Mohammad Amin Abdollahzadeh, Shima Shamekhi
THE EFECT OF DIMENSIONALITY AND CURRENT STRENGHT ON CONDUCTIVITY OF GRANULAR METALS
Metallic materials in granular packings show different electrical properties from their bulk counterparts. In this paper, we investigate the temporal evolution of the electrical conductivity of granular metals. We use metallic beads arranged in different one-, two- and three-dimensional ensembles through which different constant currents are inject...
By Maja Đekić, Ajla Karić, Amra Salčinović Fetić, Melisa Baždar, Belma Husković, Dijana Dujak, Diana Ćubela
EFFECT OF CHROMIUM CONTENT ON MECHANICAL PROPERTIES OF NICKEL-FREE AUSTENITIC STAINLESS STEELS
This study investigated the mechanical properties of a series of Fe-Cr-Mn (Mo)-N alloys. The chromium content ranged from 16 to 18 mass %. The test alloys were produced by adding nitrided ferroalloys during melting in an induction furnace. Test specimens of each alloy were prepared for mechanical testing and microstructural observation. Tensile str...
By Jasmin Halilović, Edis Nasić, Derviš Mujagić
EFFECT OF PRECIPITATION HARDENING ON MICROSTRUCTURE OF 17-7 PH STEEL WITH MODIFIED CHEMICAL COMPOSITION
Steel 17-7PH is austenitic-martensitic steel with high strength, hardness, and resistance to creep, and corrosion. It is designed for aerospace components, but can also be used for other applications that require high strength and corrosion resistance, as well as leaf springs for operation at temperatures up to 316 °C. It can be used in a solut...
By Belma Fakić, Derviš Mujagić, Omer Beganović
THE INFLUENCE OF MANGANESE ON THE TENSILE STRENGTH OF HIGH CARBON STEEL C66D
Modern steel production cannot be imagined without manganese, because almost all steels contain manganese.In this paper, we present the impact of manganese on the tensile strength values of high-carbon steel. This paper presents an improvement in the quality of wire rolling with control of manganese content in steel and the value of C-equivalent, i...
By Aida Imamović, Omer Kablar, Mirsada Oruč, Vedina Purić-Selimović, Lamija Sušić
DIFFERENCE OF THE CREEP RATE OF PRE-STRAINED AND NO PRE-STRAINED SUPERALLOY N07080
This paper describes the difference in the creep rate of pre-strained and no pre-strained samples of superalloy N07080. The primary strengthening mechanism of this superalloy is based on the precipitation of fine and coherent particles of the intermetallic γ' phase Ni3(Al,Ti) that ensure good creep resistance. In the case of additional streng...
By Omer Beganović, Belma Fakić, Derviš Mujagić
EFFECT OF COOLING PARAMETERS ON TENSILE PROPERTIES OF CONCRETE REINFORCING STEEL IN COILS
The production of concrete structural steel using controlled cooling with Tempcore technology enables the production of high-strength steel with improved adhesion to concrete while ensuring homogeneous properties for the construction of buildings, bridges, highways, and other construction facilities in any geographical environment. Concrete reinfor...
By Vedina Purić, Omer Beganović
RISK ASSESSMENT USING THE MATRIX METHOD FOR THE JOB "POWER LINE FITTER" IN A BUSINESS ENTITY
The assessment of workplace hazards involves recognizing the likelihood of occurrence and the severity of potential injuries or occupational diseases to employees. The risk assessment is performed by a team of experts from various scientific and professional fields to objectively evaluate the attributive and/or numerically expressed level of risk, ...
By Branko Radović, Bojana Zlatković, Anica Ranđelović
Georgi-Glashow SU(5) - basis for proton decay and neutrino mass problem from SM to GUT
In this article we present the original Georgi-Glashow model with gauge and fermion sector derivation in order to show grand unified theory (GUT) through this model, but also to correlate and Standard Model (SM). One of the correlations reside in neutrino mass sector where both and Standard Model (SM) see neutrinos as massless particles...
By Emina Džaferović-Mašić