Căutare 2007 fascicula9 nr1 după Titlu

Afișează articolele 21-27 of 27

    • Study of Tribocorrosion Processes by Electrochemical Techniques 

      Benea, Lidia; Drăgan, Viorel (Universitatea "Dunărea de Jos" din Galați, 2007)
      Tribocorrosion is defined as the chemical-electrochemical-mechanical process leading to a degradation of materials in sliding, rolling or erosion contacts immersed in a corrosive environment. That degradation results ...

    • Study on the Specific Effects of Corrosion processes on Ancient Bronze Artefacts 

      Sandu, Ion; Quaranta, Marta; Bejinariu, Costică; Sandu, Ioan Gabriel; Luca, Dorin; Sandu, Andrei Victor (Universitatea "Dunărea de Jos" din Galați, 2007)
      The paper presents the cases of the corrosion processes which take place on starting from the usage period when the primary patina is being formed and when the secondary patina starts, than continuing with the archaeological ...

    • The Analysis of the Breaking Susceptibility of Some Feritic Stainless Steel 

      Bordei, Marian; Ciurea, Aurel (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 ...

    • Two-Way Shape memory Effect in a Cu-13wt. %Al-4 wt.%Ni Shape Memory alloy by the Thermo-Mechanical Cycling Method 

      Gurău, Carmela; Gurău, Gheorghe; Alexandru, Petrică (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 ...

    • Values of the Solutal Marangoni Number in Very Dilute Fe-C-O Solutions at 1873K 

      Niță, Petre Stelian (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 ...

    • Vibration Diagnosis Systems for a Cold Rolling Mill Machine 

      Dragomir, Ștefan; Măcuță, Silviu; Spânu, Constantin (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 ...

    • X-Ray Diffraction Residual Stress Measurements for Quality Control Testing 

      Gheorghieș, Constantin; Cantaragiu, Alina-Mihaela; Stasi, Iuliana Valentina (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 ...