Căutare Fascicula IX după Titlu
Afișează articolele 532-551 of 552
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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 ... -
X-Ray Diffraction Analysis at Ultrasonic Welding
(Universitatea "Dunărea de Jos" din Galați, 2009)In the article [2] the author present experimental investigations regarding of residual stress distribution in weld bead vicinity of submerged arc welded naval plates. In this way, residual stresses from vicinity of weld ... -
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 ... -
X-Ray Diffraction Study of the Rewverse Martensitic Transformation in Cu-Al-Ni Shape Memory Alloy
(Universitatea "Dunărea de Jos" din Galaţi, 2008)The paper presents an X ray diffraction study for a cooper based shape memory alloy. The behavior of CuAl13Ni4 alloy, which exhibits a peculiar property, is evaluated by structural changes. On cooling, the martensitic ... -
XRD Analysis in Front of a Corrosion Crack Tip
(Universitatea "Dunărea de Jos" din Galați, 2008)During exploitation of the heat exchangers some damages can appear in the contact region between the gaskets and the stainless steel walls. The studies upon the material were performed using SEM microscopy, X-ray ...
