Căutare după Autor "Marin, Mihaela"

Afișează articolele 1-8 of 8

    • Characterization of Iron and Low Alloy Steel Powders Obtain by Water Atomization 

      Drugescu, Elena; Marin, Mihaela; Silva, Rui (Univerversitatea "Dunărea de Jos" din Galați, 2009)
      Three types of iron and low ally steel powders were investigated to determinate their physical properties and surface morphology by SEM analysis. The powders were obtained by water atomization. The first type of powder ...

    • Dimensional Changes in Some Iron-Based Powder Metallurgy Alloys 

      Marin, Mihaela; Potecașu, Florentina; Potecașu, Octavian (Universitatea "Dunărea de Jos" din Galați, 2015)
      The purpose of this paper is to present the dimensional changes in some ironbased (P/M) alloys. The specimens produced from atomized iron powder and alloyed powder with different sizes (< 45, 45-63, 63-100, 100-150, >150 ...

    • Influence of Alloying Elements on Corrosion Resistance of Some Iron - based Sintered P/M Alloys 

      Potecașu, Florentina; Marin, Mihaela; Potecașu, Octavian; Radu, Tamara; Istrate, Gina (Universitatea "Dunărea de Jos" din Galați, 2015)
      In this paper is described the influence of alloying elements on corrosion behavior of sintered iron parts. The compacts were sintered at 1,150 °C and the sintering time was 60 minutes. After microstructural studies, the ...

    • Mechanical properties and Abrasive Wear Behavior of Fluidized-bed Carburized Sintered Iron Alloys 

      Marin, Mihaela; Potecașu, Florentina; Drugescu, Elena; Potecașu, Octavian; Alexandru, Petrică (Universitatea "Dunărea de Jos" din Galați, 2012)
      This paper is a study of the influence of fluidized bed carburizing of sintered steels on the mechanical properties and the abrasive wear behavior for two different types of powder. Carburizing was carried out at a ...

    • Microstructural Characteristics of Sintered Powder Metallurgy Alloys 

      Marin, Mihaela; Potecaşu, Florentina; Potecaşu, Octavian (Universitatea "Dunărea de Jos" din Galaţi, 2014)
      The purpose of this paper is to study the influence of processing parameters on the microstructural characteristics of sintered powder metallurgy alloys. The specimens were produced from atomised iron powders with different ...

    • Reasearches Regargindg the Influence of Steam Oxidation on Sintered Alloys Properties 

      Marin, Mihaela; Potecaşu, Florentina; Potecaşu, Octavian (Universitatea "Dunărea de Jos" din Galaţi, 2013)
      In this paper is studied the influence of steam treatment applied on sintered steels and the mechanical properties and abrasive wear behavior for two different types of powder. Steam treatment was carried out at temperature ...

    • The Influence of Steam Treatment on Mechanical Properties and Abrasive Wear Behavior of Sintered P/M Steels 

      Marin, Mihaela; Potecaşu, Florentina; Drugescu, Elena; Potecaşu, Octavian; Alexandru, Petrică (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      In this paper is a study of the influence of steam treatment on sintered P/M steels, for three different types of powder. The abrasive wear of steam-treated sintered iron is analysed by abrasion tests. The specimens were ...

    • Wear Behavior of Carburizing on Powder Metallurgy Alloys 

      Marin, Mihaela; Potecașu, Florentina; Alexandru, Petrică; Potecașu, Octavian; Drugescu, Elena (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 ...