Open Access Conference Proceedings

Abstract: Three model alloys based on Fe-C-Cr were studied. Alloys contained carbon of 0.34 wt% and chromium in a range of 0.92 – 4.76 wt%. [..] Read more

Abstract: During the production of plain carbon steel from hot metal and/or scrap considerable amounts of dust-laden off-gases are produced. In de-dusting of these off-gases considerable amounts of fine grained residues are produced, which have to be stored, transported and handled. [..] Read more

Abstract: Formation of oxide layers on the surface is inherent part of steel production. The presence of the oxide layer primarily influences the surface quality and material losses during steel processing. [..] Read more

Abstract: This article deals with the secondary cooling in a continuous caster. In particular, it deals with homogeneity / inhomogeneity in places where surface of slab is partial shielded by rollers and bearing pocket between rollers. [..] Read more

Abstract: Presented works investigates a possibility of using modeling based on artificial neural network for prediction of liquidus temperatures of low-alloyed steels. Paper describes the methodology of creating such model by tools incorporated in commercial software MATLAB. [..] Read more

Abstract: This paper presents intensively cooled ingot during casting and solidification and comparison of obtained results with numerical simulation in Magma 5 software. The technology of intensive cooled ingot has been developed and physically verified in MATERIAL AND METALLURGICAL RESEARCH Ltd. [..] Read more

Abstract: This paper deals with results of plant experiments aiming at achievement of low oxygen concentrations and high micro-cleanness during steel treatment for energetic industry on units of secondary metallurgy. Plants heats were aimed at analysis of influence of slag-making agents, wear of the lining, modification of inclusions, choice of mode of their out-stirring by the help of EMS and Ar blowing. [..] Read more

Abstract: The effect of High-Temperature Thermomechanical Processing (HTMP) on the structure and mechanical properties of austenitic-ferritic steel has been studied. The dislocation structure observed in austenitic-ferritic stainless steels gave evidence that HTMP affected the strengthening and softening behaviour. [..] Read more

Abstract: The ENICAB company in Biskra uses the cold drawing process on several types of wires rod of different materials and grades. Our study was carried out on an Al-Mg-Si (AA6101) aluminum alloy wire rod, the most used by the ENICAB company in the manufacture of electrical energy transmission cables. [..] Read more

Abstract: With using of anizothermal plain strain compression tests, which were performed on the Hot Deformation Simulator HDS-20, the physical simulation of rolling and following cooling of seamless tubes from steel 42CrMo4 was performed. The aim was to simulate the thermomechanical conditions during piercing as well as rolling in a pilger mill of the seamless tubes with the final diameter of 273 mm (with the wall thickness of 6.3, 20 and 40 mm) and evaluate the influence of the finish rolling temperatures (chosen in the range from 820 to 970 °C) on microstructural and mechanical properties of the investigated steel. [..] Read more

Abstract: The aim of the contribution is creation of transformation diagrams of hypoeutectoid 25CrMo4 steel that is used for tube production for the OCTG (Oil Country Tubular Goods) industry. For a comparison purpose, the CCT diagrams with and even without influence of previous deformation were assembled. [..] Read more

Abstract: A method of determining the plastic properties of the material under the conditions of microforming at elevated temperatures was presented. This involves performing the process of upsetting a cylindrical micro sample between flat tools of different temperatures. [..] Read more

Abstract: In order to achieve an economical forming technology production, a well-developed lubrication technology is generally required. Within the scope of this work, further investigations on a novel self-lubricating forming process are presented. [..] Read more

Abstract: The paper deals with the unconventional way of making thin-walled circumferential rings produced by classical technology. The essence of the phenomenon is induction. [..] Read more

Abstract: The expanding range of applications for parts made of light metals (magnesium, aluminium or titanium) could lead to a replacement of parts made of steel by the ones manufactured from light metal parts. However, magnesium and aluminium parts in particular reach their technical limits when exposed to high tribological, mechanical or thermal stress. [..] Read more

Abstract: The article presents the results of a study of the stress-strain state of workpieces after severe plastic deformation performed in a closed die. The stress state study was performed by the slip lines method and in the Deform 3D simulation software. [..] Read more

Abstract: In this study, effects of Friction Stir Processing (FSP) on the deformation behavior of Dual Phase (DP600) steel sheets under static and cyclic loading were investigated. Fatigue tests were performed at a frequency of 15 Hz during repeated tension at a cycle asymmetry R = 0 and 106 loading cycles. [..] Read more

Abstract: High Mn steels is a new type of structural steels, characterised by both high strength and superior formability. The one of this is TWIP steel offers an remarkable opportunity to adjust the mechanical properties modifying the strain hardening. [..] Read more

Abstract: One of the most important causes of steel sections failures are the residual stresses. They are those stresses that are locked in the profiles without of application of any service or internal loads. [..] Read more

Abstract: In this study, we will examine the phenomenon of precipitation that appears in the aluminum alloy AGS wires. Since the studied wires are drawn, we will try to see also the effect of the deformation on this phenomenon.The precipitation was believed to be the main cause of hardening in the AGS 6101 wire rod. [..] Read more