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EURO 120

Metalurgia

INTERNATIONAL

English version, published by

romanian metallurgical foundation

Honorary president of scientific publishing house f.m.r.

Dr. ec. Lepădatu v. gheorghe

vol. IX

(2004)

no.1

romanian metallurgical foundation

Scientific publishing house

scientific board staff

Professor AVRAM NICOLAE Ph. D.

professor Costin Scorţea Ph. D

Managing Director:

Professor Costin Scorţea Ph. D.

Editor-in-chief:

Professor Nicolae Avram Ph. D.

Manager Scientific Publishing House F.M.R.:

eng. Florentina Brânduşa Scorţea

Contents

Issn 1582 – 2214

Gheorghe Calea, Avram Nicolae, Cristian Predescu, Gheorghe Gh. calea,

Ecaterina Matei, Maria Paralika: Experimental researches regarding corrosion behavior in marine environment of some components used in navy technique………………………………………….……………………………..……3

Marian Bordei, Aurel Ciurea, Dinel Tănase: Mathematical modeling of the continuous casting-process-the temperature distribution model ……………….10

Aurel Ciurea, Dinel Tănase, Marian Bordei: Researches regarding the hot plastic deformation of the flaked modified graphite cast iron ………………………….16

Dinel Tănase, Marian Bordei, Aurel Ciurea: Experiments concerning the rolling technology of Fe-Ni alloys……………………………………………………...…..20

Maria-Cristiana Enescu, Marie-Rose Garda, Jean-Marc Saiter, Alexander Fainleb : Caractérisation des propriétés physiques de mélange des polymères utilisant diférents polyuréthanes ………………………………………………….25

?Romanian society of biomaterials (Selection of papers presented during the symposium held between 20th and 22nd of November 2003 at „dunărea de jos” university, galaţi, românia)…………….IX-XVI

? Press release …………………..……...…...…………..........................…I – XVIII

?New books, published by romanian metallurgical foundation………..…XVII

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abstract

metalurgia International 1/2004

D.C.: 620.193.27

Gheorghe Calea, Avram Nicolae, Cristian Predescu, Gheorghe Gh. calea, Ecaterina Matei, Maria Paralika: Experimental researches regarding corrosion behavior in marine environment of some components used in navy technique

Metalurgia International (vol.IX), no.1, 2004, p. 3

D.C.: 621.74.097

Marian Bordei, Aurel Ciurea, Dinel Tănase: Mathematical modeling of the continuous casting-process-the temperature distribution model

Metalurgia International (vol.IX), no.1, 2004, p. 10

The mathematical modeling of the continuous casting process is necessary because the very difficult conditions, such as: high temperature, high fluid steel quantities, …do not permit an adequate evaluation, directly on the installation. Thus, the simulation of the thermal process can be a good possibility of analysing and improving the working of the continuous casting machines.

D.C.: 539.374

Aurel Ciurea, Dinel Tănase, Marian Bordei: Researches regarding the hot plastic deformation of the flaked modified graphite cast iron

Metalurgia International (vol.IX), no.1, 2004, p. 16

Since 1932 at Aachen researches regarding the possibilities of hot plastic deformation of the cast iron are made. This domain is on great interest for scientists from all over the world. This paper present several aspects of the hot stamping of the modified flaked graphite cast iron.

D.C.: 621.771

Dinel Tănase, Marian Bordei, Aurel Ciurea: Experiments concerning the rolling technology of Fe-Ni alloys

Metalurgia International (vol.IX), no.1, 2004, p.

The growth of the users measurements an control devices and equipment, the development of automation in various industrial domains, the necessity of operating with more and more reduced tolerances in operating the modern technological process, implies a greater precision in the parameter measurements. The development in the domain of the measurement devices and equipment is highly connected to the researches and discoveries from the materials science, in the sense of obtaining new materials with high characteristics.

Keywords: biomaterials, polymers, thermo-gravimetric analysis

Maria-Cristiana Enescu, Marie-Rose Garda, Jean-Marc Saiter, Alexander Fainleb : Caractérisation des propriétés physiques de mélange des polymères utilisant diférents polyuréthanes

Metalurgia International (vol.IX), no.1, 2004, p. 25

Polymeric materials have a wide range of applicability in particular as biomaterials. In field, to improve the biocompatibility of polymeric materials, it is prime importance to have at first an overview of their physical properties. In this work, three series of polymeric blends have been studied by means of differential scanning calorimetry (DSC); thermo-gravimetric analysis (TGA); IR-spectroscopy (IR); dynamic mechanical analysis (DMA). The first series are blends of PU₂₀₀₀/PC, the second series of PU/CPL and the third series of PUF/CPL. For each series, we have performed the measurements for different compositions of the blends.

The results show that the first series PU_1-x/PC_x (with x =50, 85 and 95 W/W composition) is promising in regard with the thermal stability and polymer-polymer compatibility.