Now showing items 21-32 of 32

    • Researches on the Corrosion Behavior for a Drawing Steel That Went Through Natural Ageing 

      Potecașu, Florentina; Potecașu, octavian; Ioniță, Elena; Ciubotariu, Alina (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper presents the results of a study on the corrosion behaviour of the sheets of drawing steel with 0,04% C gone through natural ageing and run for a period of 112 days from the moment of drawing. The researches ...
    • Optimisation of Refractory Components of Sliding Gate Mechanism for Continuous Casting 

      Munteanu, Viorel (Universitatea "Dunărea de Jos" din Galați, 2009)
      New design techniques have been developed to optimize refractory components of sliding gate mechanism for continuous casting of steel. The overall objective is to increase CC productivity as well as steel quality by using ...
    • Study of Zro2/Co-Deposition with Cobalt from Chloride Electrolyte 

      Benea, Lidia; Sorcaru, Florentina Simona (Universitatea "Dunărea de Jos" din Galați, 2009)
      The metal-matrix composites are materials in which the properties of a metallic host material are modified with addition of a second phase (ceramics) by electrodeposition process. The second phase can be hard oxides or ...
    • Intercritical Thermomechanical Treatments of the Microalloyed Steel Products for Welded Structures 

      Vasilescu, Elisabeta; Doniga, Ana; Neacșu, Marian (Universitatea "Dunărea de Jos" din Galați, 2009)
      This paper shows the laboratory experiments made on several grade steels by applying some intercritical thermomechanical treatments; Two variants were used: “down-up” thermomechanical treatment with heating and rolling ...
    • Time Scales of Phisico-Chemicaly Driven Processes in Desulphurization CaO-Al2O3 Slag 

      Niță, Petre Stelian (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper is dealing with the expression of times scales associated to different physically and physico-chemically driven processes taking place on the slag side of the interface CaO-Al2O3 slags-steel, specific to the ...
    • Behavior of Ni/al2O3 Nanocomposite Thin Layers in Corroding Environment 

      Gheorghieș, c.; Gheorghieș, Livia; Atanasiu, V.O. (Universitatea "Dunărea de Jos" din Galați, 2009)
      This paper investigates the effects of adding alumina nanoparticles in the electrolyte bath on surface topomorphologies and structure of electrodeposited nickel. The influence on the corrosion process in NaCl solutions ...
    • Variation of Mechanical Characteristics for Thin Wall Tubes Processed in Ultrasonic Field 

      Susan, Mihai; Achiței, Cristian; Ștefanică, Roxana Gabriela; Gavrilă, Bogdan Lucian (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 ...
    • The Steam-Secondary Source of Energy in Metallurgy 

      Ivănescu, Lilica (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper is focused on a study of how to use the steam from recovery boilers of LD converters to produce electricity in turbine generators and heat in a heat network.
    • Development of Blade Design for Small Hawt Adapted for Lower Values of Wind Speed 

      Badea, Nicolae; Cazacu, Nelu (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper aims at studing, theoretically and experimentally, the influence of turbines blade profile on output power, in order to decrease effective domain to smaller wind speed, specific to Galati area. Studies have ...
    • Corrosion Behaviour of Tombac Used in Cult Objects Manufacturing 

      Hagioglu, P.; Gheorghieș, c.; Cantaragiu, A.M.; Boiciuc, R.; Țigău, N. (Universitatea "Dunărea de Jos" din Galați, 2009)
      Corrosion of metals and metallic alloys is due to their thermodynamic instability in relation to their oxidation form. Corrosion tests performed in this work simulate the exposure conditions in different environments of ...
    • Monitoring of the Rolling Mill Vibration 

      Dragomir, Ștefan; Dragomir, Georgeta; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2009)
      These researches show the influence of mill vibration on the thickness profile of the stainless steel sheet. The alloy elements like Ni and Cr inside the stainless steel could amplify the rolling mill vibration and ...
    • X-Ray Diffraction Analysis at Ultrasonic Welding 

      Dumitrache, Constantin; Bărhălescu, Mihaela; Sabău, Adrian; Comandar, Corneliu (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 ...