Open Access Conference Proceedings

Abstract: Materials commonly used in various branches of the engineering industries are very often tested under basic conditions. This is due not only to the frequent effort to determine e.g. [..] Read more

Abstract: Currently, technological progress in many modern industries requires in implementation of new types of technical materials and related development of new manufacturing technologies that bring both enhancement of service properties of final products, as well as their wider implementation into engineering practice, including the associated energy savings. One possibility is also a constant increasing of consumption of non-ferrous metals. [..] Read more

Abstract: Due to stricter emissions standards of carbon dioxide production, automobile manufacturers are forced to search innovative solutions. An eventuality to reduce emission production is to reduce the weight of a car body. [..] Read more

Abstract: To evaluate formability in sheet metal forming, experimentally determined Forming Limit Curves (FLC) are often used. These conventional curves represent the forming limits of a material. [..] Read more

Abstract: Today, more and more accent is in the automotive, aerospace and energy industries put on the use of materials with the specific utilize properties such as high strength and at the same time sufficient ductility to enable the production of given part. In addition to these key forming features, low weight and, last but not least, good corrosion resistance are also important. [..] Read more

Abstract: The paper presents the results of evaluation of the macro and microstructure as well as mechanical properties of rolled bars made from steel 42CrMo4 from continuously cast stock. The macrostructure was examined using Baumann's method and deep etching. [..] Read more

Abstract: Thanks to their specific features (such as corrosion resistance, resistance to high temperatures, good mechanical properties, unique physicochemical and aesthetic properties) stainless steels are practically applied in many areas, including construction and architecture, energy production, household appliances, automotive, food, chemical and pharmaceutical industries. Stainless steel products are usually manufactured from three basic steel grades: 301, 304, 314 or 316L, which are high in nickel content. [..] Read more

Abstract: Results of dynamic tensile tests performed for three grades of carbon structural steel are presented in the paper. The selected steels are typically used for making elements of the road sign support structures. [..] Read more

Abstract: This article deals with evaluation of effect of forging ration on microstructural characteristics of structural steel used for special application such as connecting rods, bolts, arbors, pins, axle arm. Intensity of structural changes during forging is usually determined in dependence on the forging ratio. [..] Read more

Abstract: The paper contains results of studies on the formation of oxide layers on 13CrMo4-5 steels long-term operated at an elevated temperature. The studied steels were operated at the temperature of 380 °C for 130,000 h (steel 1) and 535 °C for 230,000 h (steel 2). [..] Read more

Abstract: This paper presents the results of the effect of temperature on stability of the structure of metallic glass. The iron-based metallic glass was subjected to annealing in the temperature range from 450oC to 650oC during 5 hours. [..] Read more

Abstract: Work is aimed at tool steel of 55NiCrMoV7 after four different heat treatment types. One part of material was after nitridation, other was quenched using laser, the third part was quenched by laser and subsequently nitrided and one part of steel 55NiCrMoV7 was in basic state after conventional quenching and tempering. [..] Read more

Abstract: The cobalt based alloy, Stellite, was deposited through the TIG welding process on the surface of a Duplex stainless steel to improve cavitation erosion resistance of engineering components that work in aggressive environments. Cavitation tests were performed using ultrasonic vibratory equipment which complies with requirements of the ASTM G32 – 2010 standard. [..] Read more

Abstract: In its pure form, aluminum is relatively soft, with poor mechanical strength and weak cavitation erosion characteristics. The alloys series 6xxx have as main elements alloying silicon and magnesium, which improve their mechanical properties, making them competitive for many structural applications. [..] Read more

Abstract: The main methods of cooling of hot-rolled strip at continuous mills and casting and rolling complexes are considered. Based on the data of the influence of the cooling conditions on mechanical properties of strip, the actuality of the existing equipment and automation modernization is shown (within the boundaries of the runout-table layout). [..] Read more

Abstract: Small punch creep test (SPC) is an alternative method for obtaining information about the material properties of steels and alloys when only a limited amount of test material is available that does not make it possible to perform conventional creep and/or stress rupture tests. SPCT testing can also be used for determination of the residual life of critical components of a fossil fuelled power plant. [..] Read more

Abstract: The article analyses the state of the production process of the friction bearings into the NT compressor. The basis of this article is the production process of the friction bearing, where it was necessary to suggest a fundamental change for the intensification of the production. [..] Read more

Abstract: Cooling in the continuous steel casting process starts within the primary cooling zone. Controlling the amount of water flowing through the mould cooling system allows the shell thickness growth to be directly controlled. [..] Read more

Abstract: During the spheroidization process of the heat-resistant alloy powder 3X11H2B2MF nanoparticles appears on its surface which can lead the influence on the microstructure and mechanical properties when manufacturing the parts. The paper presents the results of the microstrucutre study and mechanical tests of the specimens manufactured by directed energy deposition technology from the heat-resistant alloy powder with and without nanoparticles The recommendation of the further usage of the powder material obtained by plasma spheroidization are given.. [..] Read more

Abstract: Centrum výzkumu Řež will carry out fatigue and fracture toughness tests in the frame of project Research for Sustainable Energy, in support of the European effort for the development of the Lead-cooled Fast Reactor as one of possible cooling systems of the Generation IV primary circuits. In order to progress material development for the future nuclear systems, an insight into the material properties at cycle fatigue loading and fracture toughness of candidate materials in Heavy Liquid Metals is required. [..] Read more