Căutare 1993 -2018 după Titlu
Afișează articolele 200-219 of 552
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Increase the Steels Purity cast in Vacuum
(Universitatea "Dunărea de Jos" din Galaţi, 2012)The need to develop products with special characteristics and high mechanical properties led to the introduction of plastic deformation of semifinished materials. Special purpose products are produced from slabs, ... -
Industrial Electron-Beam Equipment on Base of Noble and Non-Ferrous Metals
(Universitatea "Dunărea de Jos" din Galați, 2006)Method of obtaining of metals and alloys by melting – is basic. By this way make in practice the majority of metals, alloys and ligatures. The essence of a method is, that in special melting device (furnace) to melt metal ... -
Industrial Research in Thicker Heavy Plates (70-80 MM) HSLA Steel Micro-Alloyed with Mo-NB-Ti Thermo-Mechanical Control Process in ArcelorMittal Galati
(Universitatea "Dunărea de Jos" din Galați, 2016)Thermomechanical rolling (TMR or TMCP) is a special rolling process resulting in an extremely high-strength, fine-grained substructure which simultaneously offers very good toughness and cold formability. TM products ... -
Influence of Alloying Elements on Corrosion Resistance of Some Iron - based Sintered P/M Alloys
(Universitatea "Dunărea de Jos" din Galați, 2015)In this paper is described the influence of alloying elements on corrosion behavior of sintered iron parts. The compacts were sintered at 1,150 °C and the sintering time was 60 minutes. After microstructural studies, the ... -
Influence of Atmospheric Conditions on the Mechanical Properties of Pet Rubber Composites
(Universitatea "Dunărea de Jos" din Galați, 2005)The aim of paper is to study the influence of environmental open air conditions on the PET-rubber composites. Two set of samples (Type I, Type II) were obtained with the same composition, but the composites of Type I are ... -
Influence of Cooling Oil on the Surface Quality of the Roller Strip
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The excess of emulsion used in the lamination process leads to the formation of drops which in the annealing process forms spots of burned emulsion. It was also shown to cause formation areas with high carbon concentrations ... -
Influence of Heat Treatment Technology on the Structure and Properties of Thick Sheet Steel ASTM14 Degree F
(Universitatea "Dunărea de Jos" din Galați, 2015)In this paper, based on the researches carried out a heat treatment technology can be determined which further lead to an optimum set of mechanical properties according to the technical conditions: A. Annealing (austenite ... -
Influence of Micro Glass Beads Added in PBT Matrix on the Mechanical Properties of Composites
(Universitatea "Dunărea de Jos" din Galaţi, 2012)This paper presents the influence of adding materials (micros glass spheres) in a matrix of PBT on several mechanical properties: elasticity modulus, stress at break , elongation at break, energy at break. The mechanical ... -
Influence of Niobium as Microalloying element in 3%Si Steel grade for Electrical Industry
(Universitatea "Dunărea de Jos" din Galaţi, 2012)The paper presents the results of the laboratory research on the chemical composition and crystallographic texture in 3% Si steels and their influence on the level of magnetic losses in the final sheet. The magnetic ... -
Influence of Normale Loads on Corrosion Behaviour of Ti-6Al-4V Alloy During Fretting in Artificial Saliva
(Universal "Dunărea de Jos" din Galați, 2012)The fretting corrosion behaviour of untreated Ti-6Al-4V alloy in artificial saliva solution was evaluated based on the change in open circuit potential (OCP) measured as a function of time. Fretting corrosion experiments ... -
Influence of Ph galvanic Baths on the Nickel Deposits
(Universitatea "Dunărea de Jos" din Galați, 2009)The influence of pH on cathodic and anodic current efficiency, surface quality and morphology of nickel deposit in the electrolyte solutions of the Watts bath type was investigated. Cathodic current efficiency of nickel ... -
Influence of reduction scheme on hardness cold rolled strip mark steel ST 12
(Universitatea "Dunărea de Jos" din Galaţi, 2016)The paper presents the results of the research on the influence of the evolution hardness scheme rolled steel, for the cold-rolled strip steel St 12. St 12 is intended for the manufacture of cold rolled strip stamping ... -
Influence of Secondary Refining Treatments on the Quality of High-Grade Steel Used in Oil and Gas Industry
(Universitatea "Dunărea de Jos" din Galați, 2015)Steel is the most important alloy used in oil and gas industry from production and processing to the distribution of refined products. In this research is analyzed the production technology of steel intended for long ... -
Influence of Sintering Temperature on the Structure of Yttrium Based Phosphor Nanoparticles
(Universitatea "Dunărea de Jos" din Galați, 2017)Yttrium-based phosphor materials belonging to the class known as garnets have witnessed a strong return with the development of the first white LEDs. Among these materials, yttrium aluminum garnet doped with cerium has ... -
Influence of Some Technological Parametersof Fluidized Bed Carbonitriding on the Surface Hardness of Carbonitrided Parts from Low Allow Steels
(Universitatea "Dunărea de Jos" din Galați, 2016)The paper describes the experimental research of thermos-chemical treatment of carbonitriding performed on samples of different brands of low alloy steels. The technological parameters whose influence on the carbonitrided ... -
Influence of Steel Modification Allied with 4-7%Si on Macrostructure
(Universitatea "Dunărea de Jos" din Galați, 2006)The goal of this paper is to test the effect of odification process of liquid steel with 4-7% silicon content, in the course of pouring out from steel-smelting furnace into ladlet, on macrostructure. The research settled ... -
Influence of Substrate Temperature on Structural and Morphological Properties of SnO2 Nanostructured thin Films
(Universitatea "Dunărea de Jos" din Galaţi, 2013)SnO2 nanostructures thin films with thickness of 500 nm were prepared by electron beam-physical vapor deposition on glass substrate at temperature of 300, 373, 443, and 583 K. Structural and morphological properties of ... -
Influence of Technological Parameters on the Evolution of Nickel Films Deposited by Electrolysis
(Universitatea "Dunărea de Jos"din Galați, 2009)The influence of technological parameters on the structure of nickel layers electrodeposited on a copper substrate in a Watts bath has been studied. The complex influence of current densities, temperature and pH values ... -
Influence of the Anodic Oxidation Treatment on the Corrosion Behaviour of Aluminium and Aluminium Alloyss
(Universitatea "Dunărea de Jos" din Galați, 2015)This paper deals with the effect of anodic oxidation treatment on the corrosion behaviour of 6061 aluminium alloy in natural sea water. Anodic oxidation treatment leads to the formation of an amorphous oxide layer on the ... -
Influence of the Chemical Composition on the Behavior of Austenitic Stainless Steel in Fliid Layer Nitriding Process
(Universitatea "Dunărea de Jos" din Galaţi, 2008)The main factors that influence the stainless steel behavior to the nitriding process are: chemical composition, nitriding temperature, treatment time. Researches have revealed that, with low temperature nitriding, the ...
