EFFECT OF UNEVEN PLASTIC DEFORMATION ON WIDTH OF CLAD LAYERS OF EXPLOSIVE WELDED THREE-LAYERS STRIP
The purpose of this paper is to describe the basic reasons for obtaining narrower clad layers of CuZn10 alloy in regards to the central layer of steel strip DC04 are described. Some reasons for the reduction of the thickness of clad layers along the side edges of the strip are also described, as well as the change in the length of these parts with ...
By Omer Beganović, Almedina Čamdžić, Faik Uzunović
DUCTILE IRON MICROSTRUCTURE DESIGN USING HEAT TREATMENT PROCESSES
Mechanical properties of the ductile iron strongly depend on its microstructure. Different microstructural constituents result in different values of mechanical and ductile properties of ductile iron castings. One of the possibilities to design (define) microstructure of ductile iron castings is an application of different heat treatment processes....
By Hasan Avdušinović, Salaheldin Abdelmagid Mohamed Badreldin, Mohammed Abdelgadir Abdalla Mohammed, Faik Uzunović
INFLUENCE OF HEATING RATE ON STABILITY OF AUSFERRITE MICROSTRUCTURE
Austempered Ductile Iron (ADI) is obtained by exactly controlled heat treatment process of nodular cast iron. Ductile iron samples are first austenitised to dissolve carbon, then quenched rapidly to the austempering temperature to avoid the formation of deleterious pearlite or martensite. Resulting ausferrite microstructure consists of acicular fer...
By Hasan Avdušinović, Almaida Gigovic-Gekic, Šehzudin Dervišić
NEW EDITIONS OF THE STEEL AND STEEL CASTING DESIGNATION STANDARDS
The great development of the industry has caused the need for systematization in the classification of raw materials and finished products. For this reason, all industrialized countries have their own standards, so called national standards or norms for production and delivery. With the unification of European countries, and also for the import and...
By Mirsada Oruč, Raza Sunulahpašić, Almaida Gigovic-Gekic, Sulejman Muhamedagić
NANOMATERIALS IN MEDICINE
The application of nanotechnology in medicine and dentistry will bring significant advances in the diagnosis, treatment, and prevention of disease. Various applications of nanotechnology in medicine are responsible for development of a new branch of medicine, called nanomedicine, which shows how it is possible to improve the understanding of pathop...
By Vukoman Jokanović
COMPARISON OF DIFFERENT STEEL TYPES BY USING 3D TOMOGRAPHY
The results of two light optical tomographies (LOT) of two-phase steels are presented and compared in this paper. Two-phase steels show a microstructure consisting of a carbon-rich second phase and a ferritic matrix. In this work, microstructures are compared with a martensitic and a bainitic second phase. Tomographies are very important for materi...
By Emina Vardo, Jessica Gola, Frank Mücklich
DIFFERENT ASPECTS OF MATERIAL MODELING BY DEEP ROLLING
In the following paper results of the investigation of the “Bauschinger effect” are presented. It was done by model which was made in ABAQUS and observed from deep rolling simulation results of residual stresses. Later, comparison of the results are presented by variation of forces and overlapping factor. Deep rolling (DR) is a mechanic...
By Ammar Sejdinoski
INFLUENCE OF BORON, ZIRCONIUM AND TELLURIUM ON THE MECHANICAL PROPERTIES OF AUSTENITIC STAINLESS STEEL
More recently a 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 thanks to a compl...
By Derviš Mujagić, Mustafa Hadžalić, Aida Imamović, Sulejman Muhamedagić
NUMERICAL ANALYSIS OF THE STRESS CONDITION OF THE VESSEL UNDER PRESSURE
In this paper, a pressure vessel test is described which is viewed as an axis-symmetric structure in order to perform an initial check of the adopted model defined by the plate-like finite elements. This approach gives the possibility of comparing the results obtained for the stress and deformation field with the patterns of classical elasticity th...
By Nermin Bišćević, Husmira Bišćević
MACROSCOPIC METHOD FOR ASSESSING THE CONTENT OF NON-METALLIC INCLUSIONS - BLUE FRACTURE
Non-metallic inclusions usually deteriorate mechanical properties and surface quality of steel products. Presence of non-metallic inclusions might have negative affected some of the mechanical properties of steels like ductility, toughness, anisotropy, and formability. Macroscopic method for assessing the content of non-metallic inclusions in forge...
By Belma Fakić, Adisa Burić, Edib Horoz