Căutare Fascicula IX după Autor "Dima, Ovidiu"

Afișează articolele 1-5 of 5

    • Aspects of Nitrated Layer Structure for Some Types of Austenite Stainless Steel 

      Dima, Ovidiu; Levcovici, Sanda; Gheorghieș, Constantin (Universitatea "Dunărea de Jos" din Galați, 2006)
      The analysis of nitrated layer diffractograms and the structure marked out the presence of complex nitrides combinations layer for all types of steel except for code 6 steel type 2CuMoNiCr200 which because of the very ...

    • Behavior of Some Stainless Nitrided Austenite Steel Types to Corrosion and Abrasion 

      Dima, Ovidiu; Mitoșeriu, Olga (Universitatea "Dunărea de Jos" din Galați, 2006)
      By nitriding, stainless austenite steel types can become surface hardened. Hardness can be greater at more than 1000 HV005 when the composition layer made of complex nitrides is obtained and more reduced till 500 HV005 ...

    • Behaviour at Nitriding in Fluidized Layer of Austenitic Stainless Steels at the Temperature 

      Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2007)
      Nitriding at low temperatures, 450-500oC of austenic stainless steels lead to the obtaining of the tough layers over 1000 HV005 but having thicknesses of tenths of microns. Moreover, nitriding at 500ºC has determined the ...

    • Studies and Research on Treatment of Titanium Alloys 

      Dima, Ovidiu; Alexandru, Petrică; Gurău, Gheorghe; Vasilescu, Vlad Gabriel; Vasilescu, Elisabeta (Universitatea "Dunărea de Jos" din Galați, 2014)
      Titanium and its alloys have an extended use due to special properties. The paper highlights the TiZr alloy intended to manufacture prostheses, the influence of plastic deformation on the properties and structure. Applied ...

    • Surface Hardening by Nitration for Some Stainless Austenite Steel Types 

      Dima, Ovidiu; Cazacu, Nelu (Universitatea "Dunărea de Jos" din Galați, 2006)
      Stainless austenite steel types have a good resistance to corrosion in different natural, industrial environments but their hardness and mechanical resistance are low enough. In order to assure an increased resistance ...