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Researches on the Pollution of Underground Waters in a Certain Part of Galati District
(Universitatea "Dunărea de Jos" din Galați, 2007)
The paper underlines the importance of monitoring the quality of the
underground waters and presents the experimental results as regards the pollution
of underground waters in a certain part of Galati district. The final ...
Grain Refinement in Aluminum Alloys by Acoustic Cavitation Phenomena
(Universitatea "Dunărea de Jos" din Galați, 2007)
In this article, ultrasonic method of transmitting forced vibrations to solidifying
aluminum-alloy melts is presented. In the presence of well developed cavitation
situations, a fine and homogeneous microstructure has ...
Behaviour at Nitriding in Fluidized Layer of Austenitic Stainless Steels at the Temperature of 450°C
(Universitatea "Dunărea de Jos" din Galați, 2007)
Stainless austenitic steels have a good corrosion resistance but reduced
abrasion strength due to low strength below 200HV5. By nitriding one may ensure
the obtaining of a superficial layer with increased strength that ...
Study of the Thermomechanical Treatment Post-Deformation Maintaining Time Influence on the Mechanical Characteristics of the Microalloyed Steels
(Universitatea "Dunărea de Jos" din Galați, 2007)
This paper-work shows the results of the laboratory researches of the postdeformation
maintaining time influence on the physical-mechanical characteristics
of the flat microalloyed steels, at high temperature thermomechanical ...
Steel Flow Control of Continuous Casted Slabs Using Submerged Entry Nozzle Exchange System for Tundish
(Universitatea "Dunărea de Jos" din Galați, 2007)
In the steel making process, the continuous casting of molten steel is a very
important step which involves hi-tech facilities. The flow control is a very important
issue that influences the quality of the final products. ...
Experimental Researches on the Constitutive Equation of Concrete Steel with Superior Characteristics
(Universitatea "Dunărea de Jos" din Galați, 2007)
The plastic deformation behavior is defined by the function of the deformation
strength according to the strain, strain rate and temperature as the factor of the
deformation process. The behavior law establishes by the ...
Contribution of Heat and Thermochemical Treatments to the Improvement of the Perfomances of High-Speed Steel Tools
(Universitatea "Dunărea de Jos" din Galați, 2007)
The In this paper the influence of non-conventional heat and thermo chemical
treatments upon the structure of tool steels and implicitly, upon the performances
that are derived from applying such treatments, is presented. ...
Implications of Thermal and Thermo Chemical Treatments in Electrolytic Plasma on the Phasic Composition of Steels 40Cr10 and OLC 55
(Universitatea "Dunărea de Jos" din Galați, 2007)
The X-ray diffraction researches allowed the identification of the phases
present in the structure of steels 40Cr10 and OLC 55, treated thermally and
thermal-chemically in electrolytic plasma and the calculation of ...
Influence of Steel Modification Allied with 4-7%Si on Macrostructure
(Universitatea "Dunărea de Jos" din Galați, 2006)
The goal of this paper is to test the effect of odification process of liquid steel
with 4-7% silicon content, in the course of pouring out from steel-smelting furnace
into ladlet, on macrostructure. The research settled ...
Experimental Results at Modelling of the Flow and Deformation Fields at the Profiles Rolling
(Universitatea "Dunărea de Jos" din Galați, 2006)
This paper presents the results for modeling of the rolling process based at the
deformable continuous medium mechanics, the theory of field lines. The rolling of
the profiles and plates may be evaluated as the plane ...