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Root Canal System Analysis with a Group of First Permanent Molars of Upper and Lower Jaw

Mroczek K.、Szlązak K.、Jodkowska E. 等 6 位作者2014-06-01Archives of Metallurgy and Materials

Postępująca inwazja bakteryjna w tkankach zęba prowadzi do zapalenia miazgi, powstawania w niej mikroropnii, zniszczenia a w konsekwencji do zapalenia ozębnej. Z tego względu celem leczenia endodontycznego stało się trójwymiarowe oczyszczenie kanału korzeniowego od jego ujścia do przewężenia fizjologicznego. Dlatego c…

Protecting Melted Zinc-Aluminium based Foundry Alloys Against Hydrogen Pick-Up

W. Krajewski、G. Piwowarski、W. Krajewski2014-06-01Archives of Metallurgy and Materials

Abstract The paper is devoted to examinations of the refining efficiency of fluxes and refiners applied during melting of zinc and zinc-aluminium alloys. The content of gases, mainly hydrogen, in the alloys not protected during the charge melting and in the ones protected with the fluxes and/or refined is discussed. T…

Aluminum Alloy Microstructure PropertiesMaterials Engineering and ProcessingMetallurgy and Material Science

The Analysis of the Mechanical Properties of High Carbon Steel Wires after Multipass High Speed Drawning Process in Conventional and Hydrodynamic Dies

M. Suliga2014-06-01Archives of Metallurgy and Materials

Abstract In this work the influence of the drawing speed on lubrication conditions and mechanical properties of high carbon steel wires drawn in conventional and hydrodynamic dies has been assessed. The drawing process of ϕ5.5 mm wires to the final wire of ϕ1.7 mm was conducted in 12 passes, in industrial conditions,…

Metal Forming Simulation TechniquesMetallurgy and Material FormingMetal Alloys Wear and Properties

Manufacturing of Ferritic Low-Silicon and Molybdenum Ductile Cast Iron with the Innovative 2PE- 9 Technique

E. Guzik、D. Kopyciński、D. Wierzchowski2014-06-01Archives of Metallurgy and Materials

Abstract The use of two cored wire injection methods (2PE- 9) and the unique application of a drum ladle as a treatment, transport and casting one, instead of a vertical treatment ladle are presented. Optimization parameters, like: length of nodulariser wire, treatment and pouring temperature have been shown. The infl…

Aluminum Alloy Microstructure PropertiesAluminum Alloys Composites PropertiesMetal Alloys Wear and Properties

Experimental and Fe Analysis of Aluminium Alloy Plastic Flow in the Forward Microextrusion Processes

Piwnik J.、Mogielnicki K.2014-06-01Archives of Metallurgy and Materials

Celem badań było określenie rzeczywistego wpływu stopnia chropowatości powierzchni pojemnika na plastyczne płynięcie metalu w procesie współbieżnego mikrowyciskania pręta metalowego. Do badań użyto zestawu narzędziowego autorskiego projektu oraz wyżarzonego, aluminiowego drutu o średnicy 1.7 mm, dla którego wyznaczono…

Modelling Liquid Steel Motion Caused by Electromagnetic Stirring in Continuous Casting Steel Process

Rywotycki M.、Malinowski Z.、Giełżecki J. 等 4 位作者2014-06-01Archives of Metallurgy and Materials

W pracy podjęto próbę modelowania ruchu ciekłej stali wywołanej mieszaniem elektromagnetycznym. Lepkość stali obliczano na podstawie pola temperatury wyznaczonego ze stacjonarnego równania przewodzenia ciepła. Pole prędkości wyznaczono korzystając z równań Naviera-Stokesa i równania ciągłości strugi. Rozwiązanie uzysk…

Theoretical and Practical Aspects of Pneumatic Powder Injection into Liquid Alloys with a Non-Submerged Lance

J. Jezierski、K. Janerka、M. Stawarz2014-06-01Archives of Metallurgy and Materials

Abstract The method of powder injection into molten metal has been widely known since tens of years and successfully utilized in various metallurgical processes. The most common is a solution with injection lance submerged under the liquid alloy surface, because it is easier apart from some of disadvantages of this ap…

Metallurgical Processes and ThermodynamicsCrystallization and Solubility StudiesInjection Molding Process and Properties

Biomass as a Source of Energy in Iron Ore Agglomerate Production Process

Fröhlichová M.、Legemza J.、Findorák R. 等 4 位作者2014-06-01Archives of Metallurgy and Materials

Artykuł zawiera charakterystykę wybranych rodzajów biomasy, które mogą być uznane jako paliwo alternatywne w produkcji aglomeratów rudy żelaza. Wyselekcjonowane rodzaje biomasy poddano ocenie za pomocą analizy chemicznej, rentgenowskiej analizy fazowej oraz analizy mikroskopowej z użyciem kamery mikroskopu Olympus BX…

The Structural Relaxation and its Influence on High Field Magnetization Processes

P. Pietrusiewicz、M. Nabiałek、M. Szota 等 7 位作者2014-06-01Archives of Metallurgy and Materials

Abstract In this paper the results of the structural and magnetic investigation of Fe61Co10Y8Zr1B20 alloy after solidification and isothermal annealing was presented. The isothermical annealing was carried out at 700 K for 1 h and 770 K for 3.5 h. For the structural investigation was performed by X-ray diffractometer…

Metallic Glasses and Amorphous AlloysMagnetic Properties and ApplicationsMagnetic Properties of Alloys

Elimination of Negative Effect of Fe in Secondary Alloys AlSi6Cu4 (En Ac 45 000, A 319) by Nickel

Dana Bolibruchová、Ján Macko、Marek Brůna2014-06-01Archives of Metallurgy and Materials

Abstract Submitted article deals with influence of iron based phases segregation by nickel, which is in literature known as iron based phases corrector. Iron is one of the most common impurities that can be found in Al-Si alloys. It is impossible to remove iron from melt by standard operations, but it is possible to e…

Aluminum Alloy Microstructure PropertiesAluminum Alloys Composites PropertiesMetallurgy and Material Science

Structure and Mechanical Properties of AlMg4.5 And AlMg4.5Mn Wires Extruded by Kobo Method

M. Jaskowski、K. Pieła、L. Błaż2014-06-01Archives of Metallurgy and Materials

Abstract The influence of the number of extrusion steps in KoBo method (at the same total extrusion ratio of λ = 100) on structure, mechanical properties and work hardening characteristics of AlMg4.5 and AlMg4.5Mn (AA5083) alloys was investigated. It was found that one-step extrusion leads to the formation of recrysta…

Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesMetallurgy and Material Forming

Progress in Fabrication Technology of Silver-Based Contact Materials with Particular Account of the Ag-Re and Ag-SnO2Bi2O3 Composites

Księzarek S.、Woch M.、Kołacz D. 等 6 位作者2014-06-01Archives of Metallurgy and Materials

W referacie przedstawiono stosowany aktualnie zarys technologii wytwarzania materiałów stykowych Ag-Re 10 i Ag-SnO2Bi2O3 w postaci drutów oraz nitów litych i bimetalowych i jednocześnie podano ich charakterystyczne parametry obejmujące właściwości fizyko-mechaniczne i mikrostrukturę. Stwierdzono, że poziom uzyskiwanyc…

Investigation on the Wear Behaviour of Eutectic Al-Si Alloy- Al2O3 - Graphite Composites Fabricated Through Squeeze Casting

Palanisamy Shanmughasundaram2014-06-01Materials Research

Dry sliding wear test was conducted on Al -Si alloy - Al2O3 - Graphite composites which are fabricated through squeeze casting method, using pin -on -disc wear testing rig. The influence of parameters such as applied load, sliding velocity and weight percentage of graphite, on the wear loss of Al- 5 wt. % Al2O3 - Grap…

Analysis of three-layer composite plates with a new higher-order layerwise formulation

Maturi Dalal A.、Ferreira Antonio J.M.、Zenkour Ashraf M. 等 4 位作者2014-06-01Science and Engineering of Composite Materials

In this paper, we combine a new higher-order layerwise formulation and collocation with radial basis functions for predicting the static deformations and free vibration behavior of three-layer composite plates. The skins are modeled via a first-order theory, while the core is modeled by a cubic expansion with the thic…

Development and test of a small resistive fault current limiting device based on Hg, Re-1223 and Sm-123 ceramics

Carlos Augusto Cardoso Passos、Valdi Antonio Rodrigues、Juliana Nunes Oliveira Pinto 等 11 位作者2014-06-01Materials Research

Several reports describing Superconducting Fault Current Limiter (SFCL) containing members of the bismuth or yttrium ceramics were already described. However, none of these included the mercury and samarium cuprates. Consequently, we have conducted a study of a resistive-type superconductor fault current limiter based…

Electrodeposition of Zirconium from DMSO Solution

Simka W.、Majewski D.、Nawrat G. 等 6 位作者2014-06-01Archives of Metallurgy and Materials

W pracy przedstawiono badania woltamperometryczne procesu elektroosadzania cyrkonu z roztworu DMSO na różnych podłożach. Stwierdzono, że jest to procees wieloelektronowy zachodzący w kilku etapach. Ponadto otrzymano warstwy cyrkonu na tytanie, miedzi, stali kwasoodpornej i niklu. Wytworzony osad katodowy miał formę bi…

Analysis of Platinum Content in Used Auto Catalytic Converter Carriers and the Possibility of its Recovery

Saternus M.、Fornalczyk A.、Cebulski J.2014-06-01Archives of Metallurgy and Materials

Obecnie każdy wyprodukowany samochód musi być wyposażony w katalizator, w którym metale szlachetne takie jak platyna, pallad czy rod pełnią funkcje katalityczne. Czas życia katalizatorów jest ograniczony, zatem zostają one zastąpione nowymi, a stare stanowią ważne źródło platynowców. Zużyte katalizatory samochodowe pr…

Short-Time Ageing of MS350 Maraging Steel with and Without Plastic Deformation

J. Marcisz、J. Stępień2014-06-01Archives of Metallurgy and Materials

Abstract The age hardening behaviour of MS350 maraging steel both in undeformed specimens and in specimens deformed immediately after ageing was studied. Experiments of short-time (15, 30 and 60 s) ageing at temperature up to 600°C were performed. It was found that after ageing at 480-500°C for 15-60 s without deforma…

Microstructure and Mechanical Properties of SteelsMetallurgy and Material FormingMetal Alloys Wear and Properties

Effect of Rare-Earth Metals Addition on Microstructure and Properties of Selected Copper Alloys

Z. Rdzawski、W. Głuchowski、J. Stobrawa 等 4 位作者2014-06-01Archives of Metallurgy and Materials

Abstract Effect of addition of rare earth metals on microstructure and properties of copper alloys after casting, after cold working and after heat treatment was studies in this paper. Methodology consisted of microstructure investigations by optical microscopy and scanning electron microscopy. In addition, distributi…

Aluminum Alloy Microstructure PropertiesAluminum Alloys Composites PropertiesMetallurgy and Material Science

Thermodynamic Description Of Ternary Fe-B-X Systems. Part 2: Fe-B-Ni

J. Miettinen、G. P. Vassilev2014-06-01Archives of Metallurgy and Materials

Abstract A thermodynamic description of the ternary Fe-B-Ni system is presented in the context of a new Fe-B-X (X = Cr, Ni, Mn, Si, Ti, V, C) database. The thermodynamic parameters of the binary sub-systems, Fe-B, Fe-Ni and B-Ni, are taken from earlier assessments slightly modifying the B-Ni description. Those of the…

Microstructure and Mechanical Properties of SteelsIntermetallics and Advanced Alloy PropertiesMetal Alloys Wear and Properties