Caută
Afișează articolele 11-20 of 25
Electrochemical Behavior of Zinc Layers Passivated in Phosphate Solutions
(Universitatea "Dunărea de Jos" din Galaţi, 2012)
Phosphate conversion coatings are used on the galvanized steel. By forming a
thin protective film on the surface of the steels this treatment enhances corrosion
resistance. This paper presents studies on phosphate ...
Corrosion Behavior of Zinc Alloy Layers
(Universitatea "Dunărea de Jos" din Galați, 2014)
The alloying of zinc with some additional elements in specific quantities could
be reliably used in the hot-dip coating process. These elements conferr substantially
improved performance to the end-product specially by ...
Influence of Alloying Elements on Corrosion Resistance of Some Iron - based Sintered P/M Alloys
(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 ...
Ni-P Coating on Steel Support by Electroless Method
(Universitatea "Dunărea de Jos" din Galați, 2017)
The autocatalytic reduction method (electroless method) was applied to obtain
the Ni-P layers with different P contents. Nickel sulfate was used as nickel ion
source and as reducing agent the sodium hypophosphite. The ...
Alumina Influence on the Corrosion Resistance of Ni-PAl2O3 Composite Layers
(Universitate "Dunărea de Jos" din Galați, 2015)
This paper aims to analyze the corrosion resistance of composite layers based
on Ni-P matrix and disperse phase alumina of 10 μm size, present in amounts of 5,
10 and 20 g / L in the nickel plating bath. The influence ...
Corrosion Behavior of Ni-P Coated Steel Strips
(Universitatea "Dunărea de Jos" din Galați, 2015)
In addition to high hardness, Ni-P coatings obtained by the electroless method
are widely used due to their high corrosion resistance. The corrosion resistance
depends on the content of phosphorus in the coating. Various ...
Dust Emissions from an Integrated Steel Mill in Correlation with Human Exposure and their Adverse Health Effects
(Universitatea "Dunăreade Jos" din Galați, 2013)
Many of the metallurgical operations contribute to generation of the dust
emissions if these are not properly controlled and managed. The relevant sectors as
important sources for airborne dust are: coke oven plant, ...
Effect of Current Density on Morphology and Corrosion Resistance of Epoxy Resin/Zn Layers
(Universitatea "Dunărea de Jos" din Galați, 2013)
In this research we intended to obtain and characteriz composite layers by
using epoxy resin (disperse phase) electrodeposited with zinc (metal matrix). The
epoxy resin/Zn layers were electrodeposited at two values of ...
The Influence of the Steel's Surface Quality on the Electroless Ni-P Coatings
(Universitatea "Dunărea de Jos" din Galaţi, 2015)
The method of autocatalytic reduction coating assures a precise reproduction
of the coated surface. This is an advantage when the support surface has a complex
geometry but also becomes a disadvantage because it requires ...
Occupational Risk Management in Industry
(Universitatea "Dunărea de Jos" din Galaţi, 2018)
Occupational risk management is part of the occupational health and safety at
workplace. Occupational risk management has a specific component relating to the
assessment of the risk and a common component of all types ...