Sfoglia 2006 fascicula9 nr2 per Data di Pubblicazione
Items 1-20 di 26
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Possibilities to Evaluate the Value of the Marangoni Effect and of the Marangoni number in Refining Steel-Slag/Inclusion Systems
(Universitatea "Dunărea de Jos" din Galați, 2006)Starting from the impressive progress in studying the instabilities induced by capillary effects in systems of two immiscible fluids in chemistry, an analysis of factors in solutal Marangoni effect and Marangoni number ... -
Behavior of Some Stainless Nitrided Austenite Steel Types to Corrosion and Abrasion
(Universitatea "Dunărea de Jos" din Galați, 2006)By nitriding, stainless austenite steel types can become surface hardened. Hardness can be greater at more than 1000 HV005 when the composition layer made of complex nitrides is obtained and more reduced till 500 HV005 ... -
The Decreasing of the Energetic Losses at a Coke Cooling Plant
(Universitatea "Dunărea de Jos" din Galați, 2006)The paper presents an energetic and technologic analysis of the metallurgic coke dry cooling plant (CDCPO) operating, and also the optimization of this process in the case of an industrial plant, existing in the Steel ... -
Kinetic of Martensite Transformation in a Cu-13wt. %Al-4 wt.%Ni Shape Memory Alloy
(Universitatea "Dunărea de Jos" din Galați, 2006)In this paper we present some results was obtained on the Cu-13wt. %Al-4 wt. %Ni shape memory alloy. This alloy was elaborated by a classic melting method starting at pure metals. A DSC analysis was made for quenched ... -
Some Issues Concerning Gear Wheels Fabrication by Sintering
(Universitatea "Dunărea de Jos" din Galați, 2006)Powder metallurgy appeared in the XVIII century as result of industrial market demand for electric bulbs filaments made of wolfram. Nowadays powder metallurgy is applied in such fields as: automotive industry (cylindrical ... -
Air Quality Monitoring in Galați. Case Study
(Universitatea "Dunărea de Jos" din Galați, 2006)This paper presents information referring to the variation of aerosols concentration in a central area in Galati. For a period of time of november2005 to november 2006, there have been made correlations between aerosols ... -
Behavior of 1%Cr Steels at Fluidized Bed Nitrocarburizing
(Universitatea "Dunărea de Jos" din Galați, 2006)Paper is based by nitrocarburizing experiments made on laboratory plant. For experiments were used different samples of steel at different nitrocarburizing regimes. Influence factors were: temperature and ammonia ... -
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 ... -
Behavior of Welded Joints from Some Stainless Austenite Steel Eypes During Nitriding Process
(Universitatea "Dunărea de Jos" din Galați, 2006)Researches made on welded and nitrided samples from stainless austenite steel types show that nitriding thermo chemical treatment can be applied also for welded joints. As a result of the treatment, a diffusion layer ... -
Tribolological Behaviour of Nitrocarburized Superficial Layer After Thermo-Magnetic Treatments Applied to Steels, During Friction Process
(Universitatea "Dunărea de Jos" din Galați, 2006)Two types of steels subjected to a nitrocarburized thermo-chemical treatment after thermomagnetic treatments. The contact problems are studied employing the concept of tribosystem and tribomodel. The structural aspects ... -
Thermodynamic Assesment of the Ci-Ti System in Microalloyed Copper Base Alloys
(Universitatea "Dunărea de Jos" din Galați, 2006)The correlations made between thermodynamic and kinetic data of the heterogeneous systems provided insight into the alloys properties. Experimental researches presented in this paper refer to the thermodynamics of Cu-Ti ... -
The Influence of Polarization Tension of the Grading Over thin Layer Properties of TiN Deposed Through PDV Method
(Universitatea "Dunărea de Jos" din Galați, 2006)The deposits of tough thin layers on pieces and tools through PDV method knew a permanent and constant spreading owing to the great applicability of the resulting coatings which make that the thin layer deposit from the ... -
Study of the Inclusions from the Oriented Grains Silicon Steels and Their Influence on the Texture
(Universitatea "Dunărea de Jos" din Galați, 2006)The paper presents experimental results concerning the inhibitor phases generation by microalloying elements utilization. It was made experiments on three silicon steel charges. It was observed that the inhibitor phases ... -
Art Pieces Casting from Brass, Destined to Artificial Local Lightening, Used in Orthodox Cult
(Universitatea "Dunărea de Jos" din Galați, 2006)In this paper are presented some realizations from SC RANCON SRL Iasi, which regards the casting of lighting local parts from brass, used in orthodox religion. Thus is highlighted the relationship between functionality, ... -
Some Issues Concerning Gear Wheels Fabrication by Sintering
(Universitatea "Dunărea de Jos" din Galați, 2006)Powder metallurgy appeared in the XVIII century as result of industrial market demand for electric bulbs filaments made of wolfram. Nowadays powder metallurgy is applied in such fields as: automotive industry (cylindrical ... -
Studies Regarding the Cooling of the Rolled Pieces With Atomizing Water
(Universitatea "Dunărea de Jos" din Galați, 2006)The diversity of metallurgical materials and processes imposes a large scale of cooling speeds. The classical cooling mediums restrict the scale of the cooling speeds, reason for which nonconventional alternatives were ... -
Hardened Aluminum with Oxide Particles
(Universitatea "Dunărea de Jos" din Galați, 2006)The paper presents the effect of size and dispersion degree of the particles of aluminum oxide, on structure, mechanical characteristics and phenomena that take place when heating at different temperatures for ... -
Research Concerning the Influence of Heat Treatment on Physical and Mechanical Properties of Aluminium Based Alloys
(Universitatea "Dunărea de Jos" din Galați, 2006)This work presents the experimental results concerning the behavior on heat treatment of on aluminum based alloy belonging to the class of aluminum alloys deformable and harden by heat treatment. The laboratory level ... -
Mathematical Modelling of Steel Continuous Casting Hydrodynamics (1)
(Universitatea "Dunărea de Jos" din Galați, 2006)The quality increase of steel continuous casting and a reliability indices of afferent installations imposes the automation systems adoption of machines of continuous casting of steel. In this paper enters original ... -
On the Kinetics of Sol Gel Al:ZnO thin Films Crystallization on Silicon Substrate
(Universitatea "Dunărea de Jos" din Galați, 2006)Recently, there is a growing interest in applying ZnO thin films on silicon buffer substrates for p-n junction devices, optical wave guide, etc. A sol gel process is very attractive technique for obtaining oxide thin ...
