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Afișează articolele 871-880 of 1945
Processing Smart Wires from Cu-Al-Ni System
(Universitatea "Dunărea de Jos" din Galați, 2006)
In this paper we present some results concerning plastic deformation applied
to shape memory alloy and two most direct characterization methods for shape
memory. We work with a copper based alloy- Cu Al13Ni 4. Over eight ...
Composite-Decorative Tiles with Granite
(Universitatea "Dunărea de Jos" din Galați, 2006)
The paper presents the results of the authors’ scientific research on a composite
material with polymeric matrix, hardened with rock particles. It was studied the
influence of the quantity of the hardening phase on the ...
Surface Tension of Liquid Copper in Dilute Oxygen Concentrations
(Universitatea "Dunărea de Jos" din Galați, 2006)
The studies of this paper regarding the influence of low oxygen contents on the
liquid copper surface tension had as base „sessile drop” method and the
determination of the oxygen content using calculation ratio where ...
Researches Concerning Phase Transition of Zirconium Titanate Prepared by Electrolytic Method
(Universitatea "Dunărea de Jos" din Galați, 2006)
Powder zirconium titanate ceramics obtained by an electrolytic method has
been investigated. Continuous phase transition were found to occur in powder
zirconium titanate above and below a major discontinuity at 1120oC±10oC. ...
Industrial Electron-Beam Equipment on Base of Noble and Non-Ferrous Metals
(Universitatea "Dunărea de Jos" din Galați, 2006)
Method of obtaining of metals and alloys by melting – is basic. By this way make
in practice the majority of metals, alloys and ligatures. The essence of a method is,
that in special melting device (furnace) to melt metal ...
Analysis of Wear Cutting Tools by Complex Powerexponential Function for Finishing Turning of the Hardened Steel 20CRMO5 by Mixed Ceramic Tools
(Universitatea "Dunărea de Jos" din Galaţi, 2006)
In this paper it is analised the dependence regression between flank wear tools or
wear out of belt width on the back surface VB and cutting time t in the form of
complex power-exponential regression equation for turning ...
Specific Aspects of the Contact Wheel-Rail and the “IN SITU” Rehabilitation of Tram Rails
(Universitatea "Dunărea de Jos" din Galaţi, 2006)
The rails are an important and critical part of a railway system and are exposed,
during service, to high stresses of different types, frequency and orientation and also
to different environmental. The tram rails are in ...
Upon Radial Fretting of Dissimilar Materials
(Universitatea ”Dunărea de Jos” din Galați, 2006)
The paper presents a state of the art concerning radial fretting for dissimilar bodies and fretting damage. Four simple fretting models are defined in the literature: tangential, radial, rotational and torsional. Only the ...
Failure of a Total Knee Prosthesis Tibial Tray Due to the Fatigue Wear
(Universitatea ”Dunărea de Jos” din Galați, 2006)
Some studies report the failure of a tibial insert of knee prostheses due to the subsurface cracking and delamination wear [1]. The present study starts by analysing retrieved total knee prosthesis revealing the loss of a ...
Model and Application of the Dispsersional aAnalysis for a Wear Study
(Universitatea "Dunărea de Jos" din Galaţi, 2006)
This paper shows a coherent calculation model of the unifactorial
dispsersional statistic analysis applied for the experimental data study obtained on
samples of different volumes, drawn out from a researched statistical ...