Căutare Fascicula IX după Titlu
Afișează articolele 528-547 of 552
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Treatment of Wastewater Resulting from the Mettallic Coatings Process
(Universitatea "Dunărea de Jos" din Galați, 2016)The technological cleaning processes of steel strip surfaces used in metal coatings require organic or inorganic chemicals with a high risk of toxicity. To avoid pollution, the water resulting from these processes must ... -
Tribocorrosion-insight Into Material Degradation in Specific Environments
(Universitatea "Dunărea de Jos" din Galați, 2014)Tribocorrosion is an irreversible surface degradation mechanism of a metallic and/or non-metallic material as a result of its physicochemical and mechanical interactions during relative motion (friction, sliding, impact, ... -
Tribological Behaviour of Nitrocarburized Steels After Thermo-Magnetic Treatments
(Universitatea "Dunărea de Jos" din Galaţi, 2008)Two types of steels were subjected to a nitro-carburized thermo-chemical treatment after thermo-magnetic treatments. The structural aspects into the superficial layer of these steels are studied during the friction process ... -
Tribological Studies Regarding the Crude Rapeseed Oil Press
(Universitatea "Dunărea de Jos" din Galați, 2016)The aim of this paper is to present a tribology test conducted on crude rapeseed oil press. The experiments were carried out with four-ball machine. The oil was tested at speed of 1000 rot/min and loads of 140 N and 200 ... -
Tribolological Behaviour of Nitrocarburized Superficial Layer After Thermo-Magnetic Treatments Applied to Steels, During Friction Process
(Universitatea "Dunărea de Jos" din Galați, 2006)Two types of steels subjected to a nitrocarburized thermo-chemical treatment after thermomagnetic treatments. The contact problems are studied employing the concept of tribosystem and tribomodel. The structural aspects ... -
A Two-Step inverse Analysis Approach Used to Identify the Mechanical Properties of Metallic Materials Subjected to Large Plastic Strains. Applications to Local Investigations of Surface Layer's Behaviour
(Universitatea "Dunărea de Jos" din Galați, 2013)The aim of this research work is to improve the experimental and numerical analysis of the local mechanical properties corresponding to metallic alloys used by bulk forming processes. A non-conventional upsetting test ... -
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 ... -
A Typical Surface Formations Found on the Corrosion Layer of Iron Artefacts
(Universitatea "Dunărea de Jos" din Galați, 2009)The paper presents the experimental results obtained by applying non-invasive methods (OM, SEM-EDX, XRF) on two iron artefacts from the IInd and the IIIrd centuries A.D. (discovered in the incineration graves from ... -
Urban Pollution Issues Generated by Trams Traffic
(Universitatea "Dunărea de Jos" din Galați, 2015)The modern society development involves new and diverse issues considering urban environmental pollution. Traffic generated sound and vibration are two upto- date urban environmental pollution causes besides air and water ... -
Use of Alternative Fuels in Road Transport and its Environmental Effects. A Literature Review
(Universitatea "Dunărea de Jos" din Galați, 2015)This paper presents a literature review on use of alternative fuels in road transport, in respect of their performance and emission in diesel engines/vehicles. The major limitations of vegetable oils as fuel in diesel ... -
Utilisation of Electrochemical Methods for Characterization of Some Corrosion Inhibitors for Steel and Copper
(Universitatea "Dunărea de Jos" din Galați, 2009)The effect of chromate and molybdate on the corrosion inhibition of copper and steel has been investigated in two eutectics solution at room temperature. We used stationary electrochemical methods and optical microscopy ... -
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 ... -
Vaporisation of the Metallic Bath Component During Refining in Oxygen Converter
(Universitatea "Dunărea de Jos" din Galați, 2008)The paper presents a series of researches regarding the vaporization of the component elements of the metallic bath and slag during refining in LD converter. Also, the main factors which influence the vaporization process ... -
Variation of Mechanical Characteristics for Thin Wall Tubes Processed in Ultrasonic Field
(Universitatea "Dunărea de Jos" din Galați, 2009)The paper presents the variation of mechanical characteristics of resistance and plasticity for thin wall tubes made of stainless steel 10TiNiCr180, processed in ultrasonic field. Decrease of mechanical characteristics ... -
Vibration Diagnosis Systems for a Cold Rolling Mill Machine
(Universitatea "Dunărea de Jos" din Galați, 2007)In this work is shown the importance to use a monitoring by vibration system for a cold rolling mill machine. The using of this monitoring vibration system reduce maintenance costs, minimize the impact on operation because ... -
Vibrations and Torque Monitoring Processes for a Cold Rolling Mill
(Universitatea "Dunărea de Jos" din Galaţi, 2012)This paper presents researches made on a system of monitoring and other parallel systems for diagnose used in a cold rolling mill. The first system (with specific measurement sensors) is an online vibration monitoring ... -
Waste Minimization by Reuse and Recycling
(Universitatea "Dunărea de Jos" din Galați, 2009)Recently, pollution prevention directs attention towards the elimination or reduction of undesired by- products within the production process itself before treatment. On the long term, pollution prevention through waste ... -
Water-in-Diesel Emulsions as Alternative Fuel for Diesel engines part I: Water-inDiesel Emulsions. A Literature Review
(Universitate "Dunărea de Jos" din Galați, 2015)Although emulsions have found numerous and various applications in chemical, pharmaceutical and food industries, emulsions of water in diesel fuel are applicable alternative fuels for the existing diesel engines. Wate ... -
Water-in-Diesel Emulsions as an Alternative Fuel for Diesel Engines. Part II: Performance of Diesel Engines Fueled with Water-in-Diesel Emulsions. A Literature Review
(Universitatea "Dunărea de Jos" din Galați, 2015)This paper presents the recent advances of water-in-diesel emulsion fuel studies, especially the impact of using this emulsion fuel to the performance and emissions of diesel engine. Studies revealed that the onset and ... -
Wear Behavior of Carburizing on Powder Metallurgy Alloys
(Universitatea "Dunărea de Jos" din Galați, 2014)In this paper is studied the influence of wear behavior of carburizing in fluidized-bed on sintered alloys produced by powder metallurgy route. In powder metallurgy, carburization is a thermochemically treatment that ...
