• 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 ...
    • Cellular Automata Method Studyng Recrystallization Process 

      Anăstăsoaie, Vasile; Gheorghieș, Constantin (Universitatea "Dunărea de Jos" din Galați, 2013)
      A cellular automaton is a decentralized computing model providing a platform for performing complex computation with the help of only local information. The cellular automata method describes the evolution of a ...
    • Characterization of Thick Hard Layers with ni-Cr-B-Fe-Al Alloy Obtained by Laser Cladding 

      Drugescu, Elena; Boiciuc, Simona; Gheorghieș, Constantin (Universitatea "Dunărea de Jos" din Galați, 2009)
      To increase the resistance to wear and corrosion of the surface layers made from steel with 0.45% C, multilayer deposition was tested by injection of powder with chemical composition of 8.9% Cr, 4.5% Fe, 5.1% B, 2, 4% ...
    • Laser Cladding of High-Speed Steel on a Steel Support 

      Levcovici, Dan Teodor; Boiciuc, Radu; Levcovici, Sanda Maria; Gheorghieș, Constantin (Universitatea "Dunărea de Jos" din Galați, 2005)
      Multilayer cladding by injection of high-speed steel powder with 0.82%C, 4.7%Mo, 6.4%W, 4.1%Cr, 2.02%V, 0.3%Mn, as chemical composition, in melted bath by CO2 continuous wave laser connected to x-y-z coordinate table was ...
    • Materials Used for Manufacturing Some Objects from 1600 Before Christ - 500 After Christ Period 

      Hagioclu, Petrică; Gheorghieș, Constantin (Universitatea "Dunărea de Jos" din Galați, 2010)
      The appearance and the spreading of metallic objects produced a profound social change. The early metallurgy included two ages: The Bronze Age and The Iron Age. The late Bronze Age is considered to be the most important ...