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Zeszyty Naukowe. Mechanika / Politechnika Opolska
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Advances in Materials Science
EN Austempered ductile iron is an excellent material and it possesses attractive properties as high strength, ductility and toughness. [n this paper the neural technique was applied to the analysis of the ultimate tensile strength, the yield strength and elongation of austempered ductile iron (ADI). Es[...]
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Studia Geotechnica et Mechanica
EN Investigation of geosynthetics behaviour has been carried out for many years. Before using geosynthetics in practice, the standard laboratory tests had been carried out to determine basic mechanical parameters. In order to examine the tensile strength of the sample which extends at a constant strain[...]
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Advances in Science and Technology Research Journal
EN Welding with coated electrodes is still growing method of joining metals in construction machinery. If the electrodes are properly selected and current welding can weld materials in a wide range of geometric dimensions and species. With carefully selected ingredients one can introduce additional ele[...]
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Materials Science Poland
2016 Vol. 34, No. 1 142--147
EN Cu-Sn-Fe alloys with different compositions were developed by casting, normalizing treatment, cold roll and subsequent annealing treatment. The results showed that the tensile strength and resistivity of the Cu-xSn-xFe alloys (where x represents wt.%) improved with increasing the content of Sn and F[...]
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Advances in Science and Technology Research Journal
EN The paper presents an experimental and correlational study of mechanical properties of selected surgical sutures. The research methods employed in the study consisted in conducting tensile strength tests on suture material and subjecting the obtained data to statistical analysis. The changes in tens[...]
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Archives of Metallurgy and Materials
2017 Vol. 62, iss. 4 2021--2027
EN In this paper, effects of preheating and type of electrode (E8010 and E8018) on microstructure and mechanical properties of 5L X70 steel welded joints were investigated. The microstructure of joint zone and fracture surface was analyzed by light optical microscope and scanning electron microscope eq[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: In this study, DP 600 (Dual Phase) steel plates having 1 mm thickness were joined by copper-based (CuAl8) wire in gas metal arc brazing technique. Specimens were prepared in joining forms as overlap joint. Design/methodology/approach: Brazing operations were done with five different workin[...]
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Journal of Machine Engineering
2015 Vol. 15, No. 4 121--132
EN The paper presents results of experiments aimed at determination of range of critical orientation for parts manufactured additively using the Fused Deposition Modelling method, out of ABS material. Numerous previous observations of plastic parts manufactured additively using the FDM process allowed [...]
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Archives of Metallurgy and Materials
2017 Vol. 62, iss. 4 2371--2374
EN The present work discusses results of preliminary tests concerning the technology of continuous dosage of sodium to a metallic bath from the aspect of modification of EN AC-44200 alloy, through the use of a multiple compound (salt) of sodium. The technology consists in continuous electrolysis of sod[...]
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Archives of Metallurgy and Materials
2017 Vol. 62, iss. 3 1819--1825
EN In the present study, the effect of tool rotational speed on microstructure and mechanical properties of friction stir welded joints between commercially pure copper and 6351 Al alloy was carried out in the range of tool rotational speeds of 300-900 rpm in steps of 150 rpm at 30 mm/minutes travel sp[...]
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Archives of Metallurgy and Materials
EN The scope of this paper is to understand the effect of multiple pass of the tool during friction stir welding process of Al-17Si alloy and evaluate its microstructure and tensile strength. The rotational speed of 900 rpm with three different feed rates (50, 100, 150 mm/min) was selected for this pro[...]
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Advances in Science and Technology Research Journal
EN Preparation of Polypropylene ternary nanocomposites (PPTN) was accomplished by blending multiwall carbon nanotube (MWCNT) in polypropylene/clay binary system using a melt intercalation method. The effects of MWCNT loadings (A), melting temperature (B) and mixing speed (C) were investigated and optim[...]
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Engineering of Biomaterials
EN This paper presents the method of obtaining biodegradable glass fibers and the results of strength tests of polylactide based composites reinforced with obtained fibers. Polylactide (PLA) is a biodegradable plastic used in both industry and medicine. In medical applications its use is limited due to[...]
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Archives of Mechanical Technology and Materials
2019 Vol. 39 41--45
EN The friction stir welding process is an innovative technique for joining metals using plasticity, without presenting the fusion. It was first applied to aluminum alloys, for example copper, steel alloys, polymers and others. In this work the effects of the rotational speed, the speed of travel and t[...]
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Archives of Metallurgy and Materials
EN In this study, ODS ferritic stainless steels were fabricated using a commercial alloy powder, and their microstructures and mechanical properties were studied to develop the advanced structural materials for high temperature service applications. Mechanical alloying and uniaxial hot pressing process[...]
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Journal of Casting & Materials Engineering
EN The paper presents the results of tensile strength tests of AlSi21CuNiMg silumin made on a test stand. Silumin was under examination in an unmodified state and after modification with AlCu19P1.4 master alloy in quantity of 0.2% in relation to the mass of the alloy. Using a scanning microscope, the s[...]
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Materials Science Poland
2007 Vol. 25, No. 4 1001--1010
EN Based on the impedance matching principle and electromagnetic wave propagating law, double-layer absorbers with impedance-matching structure were designed both theoretically and experimentally. Microwave absorbers were prepared by mixing a commercially available rubber with magnetic micropowder (MMP[...]
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Opto - Electronics Review
EN Data are presented characterising of few groups of compound glass, special, optical fibres designed for photonic functional components and sensors. Tensile strengths exceeding 2 GPa were obtained in these fibres by careful multi-parameter optimisation of the modified multi-crucible technological pro[...]
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Challenges of Modern Technology
EN Influence of geosynthetics inserted into cohesive granular soil was obviously investigated using geosynthetics-soil-interaction-testing device (ITD). Observations were already made during undertaking pull-out test, and then the results revealed that a correlation between shear stress and normal stre[...]
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