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Afișează articolele 11-20 of 24
Fabrication of Ultrafine Low Carbon Metallic Multilayer by Accumulative Roll Bonding
(Universitatea "Dunărea de Jos" din Galaţi, 2014)
The effect of grain refinements by Accumulative Roll Bonding (ARB) was
investigated on low carbon steel. Optical microscopy (OM) and microhardness tests
were used to check the phase changes and hardness before and after ...
Mechanical properties and Abrasive Wear Behavior of Fluidized-bed Carburized Sintered Iron Alloys
(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 ...
Studies and Research on the Production of TiO2 and TiN thin Film by Assisted Physical Vapor Deposition Magnetron Process
(Universitatea "Dunărea de Jos" din Galați, 2017)
The experimental research carried out in this paper aims at obtaining thin
films of TiO2 and TiN and at characterizing them in terms of morphology, structure,
transparency and electrical properties. The films were obtained ...
Hardened Aluminium with Discontinuous Copper Threads
(Universitatea "Dunărea de Jos" din Galați, 2006)
The paper presents the influence of the quantity of discontinuous reinforced
threads on the mechanical characteristics of some samples obtained through
deformation from composite material with metallic matrix.
As a raw ...
Research on the Influence of the Complementary Phase Percentange on the Properties of Copper-Based Composites
(Universitatea "Dunărea de Jos" din Galaţi, 2014)
The article presents the method to obtain copper matrix composite with Cu-
Al-Fe alloy particles as complementary phase. The samples were obtained by
powder metallurgy methods using different percentages of complementary ...
Studies and Research on Treatment of Titanium Alloys
(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 ...
Wear Behavior of Carburizing on Powder Metallurgy Alloys
(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 ...
Studies and Researches Regarding the Obtaining and Characterization of Composite Nickel Coatings-Ni/Al2O3, Ni/Kaolin Electrochemically Produced
(Universitatea "Dunărea de Jos" din Galați, 2016)
This study presents the composite nickel coatings electrochemically obtained
using as disperse phases Al2O3 particles and kaolin. There were used Watts
electrolytes, with a pH = 4, current density of 4 A/dm2, a concentration ...
Studies and Research Obtaining Bronze Filters Using Powder Metallurgy Methods
(Universitatea "Dunărea de Jos" din Galați, 2015)
The article presents how to obtain porous bronze products using copper -
based powder by powder metallurgy methods. The formation of tablets was done by
free pouring the spherical powder into the mould, followed by their ...
Calculation of the Deposited Layer Thickness Through Side Injection of Powder Using CO2 Laser
(Universitatea "Dunărea de Jos" din Galați, 2017)
The paper presents a simplified theoretical model for estimating the operating
parameters of the laser deposition by injecting the powder into the metal bath. The
study considered the influence of the powder particles ...