Open Access Conference Proceedings

Abstract: The current development of chemical-heat treatment technologies is aimed at increasing the utility properties of components and improving the quality of the produced surface. A prerequisite for a quality produced surface is the selection of a suitable method of surface machining before the application of chemical-heat treatment technology. [..] Read more

Abstract: Carbon steels as a construction materials are still very popular, but exposed to corrosion. Low-carbon steel is often used as a construction material for agricultural equipment. [..] Read more

Abstract: The components of rail vehicles are strained by a number of sources, whether operational, natural, or effects caused by passengers. For protection against these influences, the number of types of surface protection is frequently used. [..] Read more

Abstract: Metal structures, equipment, ships, port and hydraulic structures, other objects operating in river or sea water, after some time are exposed to the inhabitants of the aquatic environment. The surface is overgrown with algae; various small marine organisms attach to it. [..] Read more

Abstract: Atmospheric plasma sprayed (APS) chromia coating provides excellent wear behaviour combined with corrosion resistance even in aggressive environments. In this paper, the influence of variable spraying parameters on the mechanical properties and microstructure of chromia coatings is investigated. [..] Read more

Abstract: The quality and friction properties of sliding surfaces in industrial bearing are fundamental to their performance. Tin-based coatings applied by centrifugal and static casting are commonly used for bearing lining. [..] Read more

Abstract: For wear demanding applications, the metal matrix composites (MMC) are often used due to their high wear resistance, and the tungsten carbide is often used as hard reinforcing particles. Nevertheless, there are still some limits of WC, mainly its deterioration due to heat load during laser cladding. [..] Read more

Abstract: A number of modern surface processing methods use an energy flux. The examples include electro-spark deposition (ESD) and laser processing (LP). [..] Read more

Abstract: High sensitivity of lead to organic compounds leads to degradation of lead artifacts stored in the museums or archives together with organic materials (wood, glue, leather, paper, plastic, etc.). Protection of the lead stored under adverse conditions (environment polluted by organic compound, mainly acetic acid) is based on the use of corrosion inhibitors. [..] Read more

Abstract: The paper examines and compares the properties of laser clad deposits of Stellite 6 and Stellite 21 on 1.4923 + QT base material which is often used for power generation components. Cladding was performed using two different bead widths on a 63 mm diameter shaft with and without pre-heating. [..] Read more

Abstract: A chemical, mineralogical and granulometric characterization of the waste tailings of Pachuca, Hidalgo, Mexico, was conducted. Characterization results indicate that these argentian wastes contain 56 g Ag ton−1 in a quartz matrix, where silver is present as metal, as argentite and as argentian-jarosite. [..] Read more

Abstract: Copper matrix reinforced with iron or carbon steel particulate composites were made by means of the powder metallurgy route. The reinforcement particles were added to copper metal powders with the composition of 15 wt% Fe and mixed mechanically. [..] Read more

Abstract: The Ti-6Al-2Sn-4Zr-6Mo (Ti-6246) titanium alloy is categorized as one of α + β titanium alloys group, which plays an important role in the aerospace applications. This study aims to find out the optimal thermomechanical processing route to obtain a good balance of strength, ductility and fracture toughness. [..] Read more

Abstract: Titanium based alloys are increasingly used in biomedicine due to their favourable properties. However, because of their high cost, new methods are being developed to produce more economical alloys. [..] Read more

Abstract: Silumins (Al-Si alloys) are the most used type of aluminum foundry alloys used in the automotive. Their significant expansion is result of unique properties combination. [..] Read more

Abstract: Elastic properties of wound rolls are used as an input for simulations of stress-strain state in the roll after winding in order to optimize quality of foils. The effective elastic modulus in direction perpendicular to the layers of foil is challenging to measure because it is dependent on interlayer pressure and is generally much smaller than the bulk elastic modulus of the material. [..] Read more

Abstract: In this article, the intensity of mold metal reactions between ceramic shell and magnesium alloy AZ91E is studied. The two possible protective gasses used for melt protection are studied - SF6 (sulphur hexafluoride) and 3M NOVEC 612. [..] Read more

Abstract: The effect of high-energy ball milling a mixture of Fe and h-BN with weight ratio of Fe:BN = 15, 4, 1, 0.36 on the phase composition and magnetic properties of the synthesized material has been investigated. High-energy ball milling demonstrated a significant change in the phase content, structure, and magnetic characteristics upon MA and followed annealing at 600 0C, in particular upon annealing, and the coercivity of the MA powder reached HC = 43 kA/m (540 Oe).. [..] Read more

Abstract: Commercial Nickel 201 alloy is widely used as a sealing material in applications under extreme temperatures and pressures. This study was designed to confirm the ability of the alloy to recover after annealing in a short time. [..] Read more

Abstract: The extraction of platinum from sulphide copper-nickel ores is a multi-stage process, which includes the melting of the prepared concentrate in electric ore smelting furnaces. In these furnaces, the melt is divided into matte and slag. [..] Read more