Căutare 2007 fascicula9 nr2 după Titlu
Afișează articolele 1-20 of 28
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Analysis of Steructural Components Exiting in Steel Making Slag Sampled from Steel Making-Continuous casting Flow Sheet
(Universitatea "Dunărea de Jos" din Galați, 2007)Hereby paper work aims to identify and analyze the structural constituents from the steel making shop slag. Therefore, slag specimens sampled from different stages of steel making-continuous casting flow sheet in Mittal ... -
Basic Mathematical Modeling of the Environmental Processes in the Lower Danube Region [I]
(Universitatea "Dunărea de Jos" din Galați, 2007)In most environmental pollution problems, the pollutant is released to the environment by the, almost always, turbulent flow of a carrier fluid. The pollutant mixes with the surrounding fluid (air or water) and undergoes ... -
Behaviour at Nitriding in Fluidized Layer of Austenitic Stainless Steels at the Temperature
(Universitatea "Dunărea de Jos" din Galați, 2007)Nitriding at low temperatures, 450-500oC of austenic stainless steels lead to the obtaining of the tough layers over 1000 HV005 but having thicknesses of tenths of microns. Moreover, nitriding at 500ºC has determined the ... -
Electric and Electromagnetic Properties of Fiber Fabric Based Filled Epoxy Composites
(Universitatea "Dunărea de Jos" din Galați, 2007)Electric and magnetic properties of laminate fiber fabric based epoxy composites are investigated through experimental techniques. Various concentrations of powder fillers were used in order to change the basic properties ... -
Electromagnetic Strip Mills' Driving Rollers Metallisation Advanced Technics
(Universitatea "Dunărea de Jos" din Galați, 2007)The continuous increase of the applications of thermal sprayed coatings together with the demand for layers having always more and more enhanced performances and properties stimulates the research activity toward ... -
Experimental Investigation of Fatigue of Thin-Walled Welded Structures of Commercial Vehicle Frames
(Universitatea "Dunărea de Jos" din Galați, 2007)The fatigue behavior of bus frame components consisting of thin-walled tube beams joined together by fillet welding has been investigated. Numerical analysis by means of finite elements and experimental stress analysis ... -
Experimental Research Regarding the evolution of Some parameters of the Superficial Layer in love Cycle Fatigue Process
(Universitatea "Dunărea de Jos" din Galați, 2007)The development of some mechanic engineering systems in, feasible to pressure vessels, aeronautics, ship building technology, requires a full investigation of the material features that are to be examined under a low ... -
Hydrogen production by Steam reforming of Renewable Raw Materials
(Universitatea "Dunărea de Jos" din Galați, 2007)The paper is based on study of steam reforming of renewable raw materials (bioethanol, biomethane) in stainless steel fixed bed reactor. The β-alumina catalysts with nickel has been synthesized and tested supported. The ... -
Improvement of Steel Sheet Corrosion Resistance by Thermic Coverage Method with Zinc-Aluminium Alloys
(Universitatea "Dunărea de Jos" din Galați, 2007)The paper presents the main physico-chemical characteristics (viscosity and superficial tension of zinc-aluminium liquid alloy in view of carry out protected layers on steel sheet with very good properties by thermal ... -
Intermetalic Copper Phase Characteristics and Links with the Gold Sphere in Alumina Cover Sheets
(Universitatea "Dunărea de Jos" din Galați, 2007)The time period in which the intermetalic sheet cover is developed into the gold sphere in alumina is fully known being relatively not much literature regarding the morphology ant intermetalic phases growth in the copper ... -
Manufacture of Stud Link Chain Cable Made of Grade U1 and U2 Steel
(Universitatea "Dunărea de Jos" din Galați, 2007)We have analyzed the fabrication technology of the link chain cable made of grade U1 and U2 steel from TREFO S.A. Galati and we had in view during the experiments several rolling programs. The main characteristics of a ... -
Mechanical Resistance as a Function of Local Properties
(Universitatea "Dunărea de Jos" din Galați, 2007)The present study makes an estimation of an automotive engine piston mechanical properties and fatigue life based on some characteristics of metallurgical microstructure. Because it is intended to assess the properties ... -
Multifunctional ZnO-Based thin Films by SOL-GEL Method
(Universitatea "Dunărea de Jos" din Galați, 2007)The paper presents the crystalline structure, morphology, optical transmittance, electrical properties and room temperature photoreduction-ozone oxidation properties of some Al-doped ZnO thin films prepared by sol-gel ... -
Prediction of Buckling and Postbuckling Behaviour of Composite Ship Panels
(Universitatea "Dunărea de Jos" din Galați, 2007)The behavior of ship plating normally depends on a variety of influential factors, namely geometric/material properties, loading characteristics, initial imperfections, boundary conditions and deterioration arising from ... -
Semi-Planetary Rolling and Changes of Fine Structure and Microstructure
(Universitatea "Dunărea de Jos" din Galați, 2007)The strain intensity in the proximity of planetary cylinder, in the case of semi-planetary rolling is greater than in the proximity of the massive cylinder. This fact leads at the variation of the microstructure and fine ... -
Severe Plastic Deformation an Advanced Method for Nanostructuring Shape Memory Alloys
(Universitatea "Dunărea de Jos" din Galați, 2007)Severe plastic deformation (SPD) is an advanced plastic deformation. In this process nanostructuring metals and alloys may be produced. Nanostructured shape memory alloys are associate with a very high strength, toughness, ... -
Some Aspects About the Refractory Lining Wear in Furnaces
(Universitatea "Dunărea de Jos' din Galați, 2007)For melting cast iron, carbon steel, copper and copper alloys the quartzite is still one of the most used lining material and the most cost effective as well. The silica lining has to be replaced frequently due to the ... -
Some Results of Researches to Develop the Proper Recycling Methods of Technological Residues from Secondary Aluminum Industry
(Universitatea "Dunărea de Jos" din Galați, 2007)The objective of the research is to identify new suitable process to use residual waste (like aluminium secondary dross, salt slag or fly ashes) in concrete products according with sustainable industry concepts. The paper ... -
Structural and Tribological Aspects on Ti(C,O,N) Magnetron Reactive Sputtered Thin-Films
(Universitatea "Dunărea de Jos" din Galați, 2007)Magnetron sputtering is a flexible technique and allows producing a significant amount of types of coatings. Within the frame of present work, Ti-C-O-N thin films were deposited onto high-speed steel (AISI M2), substrates ... -
Studies About Electrochemical Plating with Zinc-Nickel Alloys
(Universitatea "Dunărea de Jos" din Galați, 2007)The electrochemical deposition of zinc and combinations with elements of the 8th group of the Periodic System (nickel, cobalt, iron) have good properties for anticorrosive protection, compare with pure zinc. For steel ...
