Recherche
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Studies Regarding Nickel Electrodeposition from Watts bath with Addition of Polyvinylpyrrolidone and Sodium Saccharine
(Universitatea "Dunarea de Jos" din Galați, 2009)
This paper is based on some studies about the influence of
polyvinylpyrrolidone (PVP) and sodium saccharine as far as concern their influence
on the nickel electroplating processes from Watts bath. PVP is a wetting ...
EDX Analysis of Laser Cladding Layers with Ni-Cr-B-Fe-Al Alloy
(Universitatea "Dunărea de Jos" din Galați, 2009)
Multilayer cladding by injection of powder with 8.9% Cr, 4.5% Fe, 5.1% B,
2.4% Al, 0.6% Cu, Ni rest as chemical composition, in melted bath by a continuous
wave CO2laser connected to x-y-z coordinate table was tested in ...
Analysis of Titanium Inteface and Tungsten Exterior layer Thickness Coated by Vibrator Electrode Method
(Universitatea "Dunărea de Jos" din Galați, 2009)
The goal of this paper is to create metallic materials with superior functional
performances. The layer obtained by electrode vibrator method must have a very
good adherence on part surface and a high chemical and thermal ...
Experimental Researches Concerning the Influence of the Oxynitrocarburizing Thermochemical Treatment Over the Structure and Corrosion Resistance of C40 Steel
(Universitatea "Dunărea de Jos" din Galați, 2009)
The aim of the paper is to present the results of the experimental researches
regarding the corrosion behaviour of C40 steel, thermochemical treated by oxidant
nitrocarburizing at 570°C. The thermochemical treatment was ...
Researches Regarding Temperature Influence on Classic and Synthetic Quenching Medium
(Universitatea "Dunărea de Jos" din Galați, 2009)
In this paper were analyzed experimental graphics for quenching cooling
curves of oil at 20°C,40°C,60°C, 80°C and carboxymethyl cellulose (CMC) 1,5%
solution in water at the same temperatures. Velocity cooling was studied ...
Utilisation of Electrochemical Methods for Characterization of Some Corrosion Inhibitors for Steel and Copper
(Universitatea "Dunărea de Jos" din Galați, 2009)
The effect of chromate and molybdate on the corrosion inhibition of copper
and steel has been investigated in two eutectics solution at room temperature. We
used stationary electrochemical methods and optical microscopy ...
Cladding by Welding with Hard Alloys
(Universitatea "Dunărea de Jos" din Galați, 2009)
The paper presents the results of a research on the role of cladding by welding
support of continuous casting plant. Emphasizing that plating leads to outer layer
the study presents a complex of properties favorable for ...
Study Regarding Gravimetrical Corrosion of the Superficial Layers Obtained Through Electrical Discharge
(Universitatea "Dunărea de Jos" din Galați, 2009)
The experimental research was made on superficial layers laid-down through
electrical sparking on the steel carbon OLC 45 probes, the used electrode being
made from a corrosion resistant material (Copper).
The probes ...
Influence of Technological Parameters on the Evolution of Nickel Films Deposited by Electrolysis
(Universitatea "Dunărea de Jos"din Galați, 2009)
The influence of technological parameters on the structure of nickel layers
electrodeposited on a copper substrate in a Watts bath has been studied. The
complex influence of current densities, temperature and pH values ...
Preliminary Investigations Concerning Monitoring of Water Pollution Level
(Universitatea "Dunărea de Jos" din Galați, 2009)
The aim of this paper is to develop an effective tool based on artificial
intelligence techniques for monitoring and characterization of surface waters.
Monitoring of the pollution in the aquatic environment consists in ...