Fascicula IX: Recent submissions
Afișează articolele 141-160 of 552
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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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
The Influence of Cold Rolling on the Microstructure for Drawing Steels
(Universitatea "Dunărea de Jos" din Galați, 2007)The paper presents the structural changes that appeared in steel for deep drawing, as a result of cold rolling and of recrystallization thermal treatment. The research was conducted on samples taken from the rolled strap, ... -
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 ... -
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 ... -
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 ... -
Study on Some Copper-Molybdenum Based Composite Materials Condensed from the Vapour Phase
(Universitatea "Dunărea de Jos" din Galați, 2007)Design features of equipment are given for realizing high-speed process of electron beam evaporation and condensation. Peculiarities of phase composition and structure of a crystallized pool (melt) on copper base are ... -
X-Ray Diffraction Residual Stress Measurements for Quality Control Testing
(Universitatea "Dunărea de Jos" din Galați, 2007)This paper present the primary difficulties which are associated with the obtaining and interpreting surface X-ray diffraction residual stress results: the surface stresses may be identical for the shoot peening, nitriding ... -
New Welding Techology-The Cold Welding on Cogged Surfaces
(Universitatea "Dunărea de Jos" din Galați, 2007)Welding by cold pressing on cogged surfaces, produces the joint of a component made from an easy deformable metal by pressing on the cogged surface of a harder metal component. Different welds between aluminium (the ... -
Experimental and Theoretical Investigations on Mode I Crack Propagation in Notches Under Cyclic Loading
(Universitatea "Dunărea de Jos" din Galați, 2007)Research works regarding crack opening stresses covering various types of Mode I cracks initiated and growing in notches under cyclic loading are shown. A large number of parameters influence the crack opening behavior, ... -
The Analysis of the Breaking Susceptibility of Some Feritic Stainless Steel
(Universitatea "Dunărea de Jos" din Galați, 2007)The growth of the world stainless steel conumption was the result of some new domains development, of some demands and special conditions undercooling not only the adaptability of this alloy but also the remarcable range ... -
Reduction Rate of Remanent Stress in Thermal Spraying Depositions by Shot Peening
(Universitatea "Dunărea de Jos" din Galați, 2007)Thermal electric-arc spraying coatings are widely utilized both to get new parts ant to repair the used ones. Just like with the other thermal spraying procedures, the other thermal spraying procedures, the thickness of ... -
Granularly unbind Materials for Casting Composite Moulds
(Universitatea "Dunărea de Jos" din Galați, 2007)This paper present some partial result based on this idea (of pollution prevention) the domain of making composite-casting moulds (in time of casting, solidifying, and alloy cooling). Casting process impose temporary or ... -
Values of the Solutal Marangoni Number in Very Dilute Fe-C-O Solutions at 1873K
(Universitatea "Dunărea de Jos" din Galați, 2007)Low carbon, aluminum killed steels are well represented by the adequate part of the Fe-C-O system, where are available useful experimental data, regarding the surface tension and viscosity. The reference dynamic ... -
A study of Electric Properties of Fiber Fabric Based Filled Epoxy Composites
(Universitatea "Dunărea de Jos" din Galați, 2007)Electric and magnetic properties of laminate carbon fiber fabric based epoxy composites are investigated through experimental techniques. Various concentrations of powder fillers were used in order to change the basic ... -
Two-Way Shape memory Effect in a Cu-13wt. %Al-4 wt.%Ni Shape Memory alloy by the Thermo-Mechanical Cycling Method
(Universitatea "Dunărea de Jos" din Galați, 2007)A Cu - 13 % wt Al 4% wt Ni polycrystalline shape memory alloy has studied with a thermo mechanical cycling method. The two – way shape memory effect (TWSME) was obtained bending the alloy around a cylinder mold and by ...
