Open Access Conference Proceedings

Abstract: One of the currently used industrial methods of zinc and lead production is Imperial Smelting Process, based on the use of a shaft furnace. It was created for the processing of traditional minerals of both metals that form compounds with sulfur. [..] Read more

Abstract: The ferritic martensitic steel T91 is among the candidate materials for internal structural components of future Heavy Liquid Metal cooled reactors. The position of T91 on the list of the candidate materials is now being questioned due to the evidence of its sensitivity to liquid metal embrittlement (LME), mainly in PbBi eutectic. [..] Read more

Abstract: The production of iron in blast furnaces involves a number of entirely different processes such as: chemical, mechanical, and physical. The input materials often contain several negative elements, such as heavy metals. [..] Read more

Abstract: Austenitic stainless steel with higher chromium and nickel contain are often used as popular material in the energetics, chemical, food processing and medical applications. That material has a suitable combination of strength and corrosion properties for a given purpose. [..] Read more

Abstract: Early steel bars corrosion in reinforced concrete elements are difficult to detect because of the lack of visible changes on the concrete surface. To assess reinforcement corrosion risk level without structure damage some non-destructive diagnostic methods are applied. [..] Read more

Abstract: For cooling tubes manufactured of aluminized carbon steel with inner surface welded longitudinally the question arises if the anticorrosion quality of Al coating produced on external surface can be influenced by the presence of the weld area on internal surface. In fact this quality is related to Al coating ability to prevent or at least to inhibit the corrosion process occurring during penetration of coating by water environment to the steel-coating interface. [..] Read more

Abstract: This paper tries to determine the possibilities of application of the high temperature oxidation of cast iron as a way of surface preparation before hot-dip zinc galvanizing and presents also results of corrosion resistance tests of zinc coatings created after high temperature oxidation of grey cast iron (with flake graphite). Research was focused on elements of overhead power lines - the jaw-chuck (screw-bow). [..] Read more

Abstract: The National Action Plan for the Development of Nuclear Energy in the Czech Republic envisages the preparation for the construction of two new blocks of the nuclear power plant in the location of Dukovany and the location of Temelín. Although the final supplier of these units is not clear yet, there are good prospects that some components could be produced by the local producers. [..] Read more

Abstract: The paper presents the results of the study how the sub-zero treatment of Vanadis 6 steel influences the corrosion resistance of the material. The sub-zero treatment was performed at -196 oC in liquid nitrogen for 17 h. [..] Read more

Abstract: The paper offers an analysis of the fluoride conversion coating prepared on ZE10 magnesium alloy with the aim to improve material corrosion properties with respect to the biocompatibility of the alloy. The coating was prepared via unconventional process, by immersion of the alloy in Na[BF4] molten salt at 430 and 450 °C for various treatment times. [..] Read more

Abstract: Magnesium alloy Mg-4Y-3Nd was prepared by spark plasma sintering technique. The gas-atomized powder was sintered at temperatures in the range of 400-500 °C and holding time up to 10 minutes. [..] Read more

Abstract: Inhibition of mild steel corrosion in 1 M HCl solution by alkylimidazolium bromides was investigated using electrochemical and weight loss methods. The studied ionic liquids showed appreciable inhibition efficiencies. [..] Read more

Abstract: Plasma nitriding is widely used as a final operation to improve wear, fatigue and corrosion resistance of industrial parts. Nevertheless, corrosion resistance can be further increased by post-oxidizing or by manganese phosphate conversion coating. [..] Read more

Abstract: Plasma nitriding is a great thermochemical treatment, widely used in many technical applications as a final operation to improve the mechanical, tribological and corrosion properties of steel. This article deals with wear and corrosion resistance comparison of plasma nitrided and tenifered 42CrMo4 steel, which is widely used in manufacturing of breech mechanism in the armament production. [..] Read more

Abstract: This report shows first investigation of microstructure development and its effect on mechanical strength and corrosion resistance of non-commercial magnesium alloy WN43 processed extrusion (Ex) and equal-channel angular pressing (ECAP). Bimodal grain size distribution with high volume fraction of ultra-fine grains about 650 nm in diameter was achieved after 4 passes through ECAP. [..] Read more

Abstract: Due to the ongoing development of industry, the production processes must be carried out in safety and economical conditions. In this regard, one of the solutions is the use of welding technologies in the field of surface engineering by using filler materials that ensure high functional properties of the deposited layers. [..] Read more

Abstract: The subject of the study was to determine the corrosion resistance of the bearing steel 67SiMnCr6-6-4 with a nanocrystalline structure compared to those with the conventional structure of tempered martensite. In order to obtain a nanocrystalline structure one set of steel samples was subjected to heat treatment consisting on quenching and austempering at 240°C. [..] Read more

Abstract: One of the recently demanded methods of protecting metal surfaces from aggressive environment is the formation on their surface of continuous films with water-repellent properties and the ability to self-cleaning, which give the material the property of super-hydrophobicity. The possibility of hydrophobization of the surface of the AZ31B magnesium alloy in a solution containing stearic acid, dimethyl sulfoxide and water has been investigated. [..] Read more

Abstract: In this work, the processes of applying protective conversion coatings based on rare-earth metal compounds for passivation of the surface of a Zn-Ni alloy were investigated. The mechanism of formation, composition and corrosion characteristics of passivating films were investigated. [..] Read more

Abstract: In this study, the nature of boriding surface treatment mechanism of the steel prestressing strand is evaluated and then the corrosion resistance of the borided steel in hydrochloric acid is assessed (detection of the content of released iron and manganese in the exposure solution). The effect on the bond strength of the treated steel prestressing strand with normal strength concrete is also evaluated (pull-out test). [..] Read more