Caută
Afișează articolele 71-80 of 1945
The Conservability of Old Wood at the Contact with Metallic Structural Components from Artifacts
(Universitatea "Dunărea de Jos" din Galați, 2008)
The paper presents the impact of metallic pieces being in contact with wood, as
structural elements, used in obtaining artifacts. The paper studies, based on old
samples, the reciprocal effect obtained at the wood-metal ...
Decorative composite Layers
(Universitatea "Dunărea de Jos" din Galați, 2008)
Part of the materials used in the chemical industry, metallurgical, machine
construction, can be coated, as with time it occurs either a decrease of its
properties, or even a process of advanced faulting, because of the ...
On the Corrosion Resistance of Cu-Mo Composite Materials Obtained by PVD Method
(Universitatea "Dunărea de Jos" din Galați, 2008)
The Cu – Mo composite materials have been obtained by electron flow
vaporizing followed by vapor –phase condensing. Researches have shown that
corrosion resistance in wet environment varies with the content of ...
Mass Erosion and Material Transfer at the Deposition of Layers by Inverse Electroerosion
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
The deposition and alloying of the superficial layers by inverse electroerosion
or by electric spark given by a vibrating electrode permits to obtain a large scale of
properties at the surface of metallic materials from ...
Hardening of the Grey Cast Iron Through the Vibrating Electrode Method Using a WC Electrode and in Combination with Ti Electrode
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
There have been tested samples of grey cast iron, the hardening being made
through WC coating through the vibrating electrode method with a layer, two
layers and through double layers combined with Ti and TiC. Besides ...
Surface hardening for Low Carbon Steel (A3k) by Yag: Nd Pulse Laser Thermal Activation
(Universitatea "Dunărea de Jos" din Galați, 2008)
The paper is based on experiments for surface hardening on A3k (low carbon
steel) samples using YAG:Nd pulse laser. A small x-y moving system conducted by
PC was made for sample scanning, relative to fixed focused laser ...
Researches Concerning the Deformation Behaviour of a Low Carbon Steel
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
The paper shows the results of the researches meant to establish the equation of
deformation behavior of low carbon steel. The behavior law is established by the
experimental way, using the torsion test method. The ...
An Analytical Procedure for the Prediction of the Stress-Strain State in Notches Under Multiaxial Fatigue
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
This work presents an analytical procedure for estimating elastic-plastic
stresses and strains in notched shafts subjected to synchronous non-proportional
torsional and tensile cyclic loading. The specification of the ...
Electrochemical Deposition and Sem Surface Morphology of Co and UHMWPE/Co Composite Layers
(Universitatea "Dunărea de Jos" din Galați, 2009)
The work aims at obtaining composite coatings in cobalt matrix with dispersed
phase UHMWPE (ultra high molecular weight polyethylene) and at characterizing
the surface morphology analyse by SEM, the thickness of the ...
Thermal Analysis of Inoculated Grey Cast Irons
(Universitatea "Dunărea de Jos" din Galaţi, 2008)
A research was done to investigate the effect of 0.05…0.25wt.% addition
rate of Ca, Zr ,Al – FeSi alloy, in ladle and in-mould inoculation of grey cast
irons. In the present paper, the conclusions drawn are based on ...