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Metalurgia INTERNATIONAL (magazine set-up
in 1995) English version,
published by romanian metallurgical
foundation Honorary president
of scientific
publishing house f.m.r. Dr. ec. Lepădatu v. gheorghe
(2006) no.6 romanian metallurgical
foundation Scientific publishing
house |
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Honourary
Staff (in alphabetical order) bensabra
hakim (algeria), chabour
salem (algeria), gencang yang
(china), R. S.
HOUK (S.U.A.), I. IMRI (TECHNICAL
UNIVERSITY OF KOICE,
SLOVAK REPUBLIC), puşici miho (Slovenia),
roşescu gheorghe (grecia), roxana
ruxandra (california), w.m. nicola (tri. state university angola,
indiana, s.u.a.), xianqing you (china) |
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scientific board staff Prof. colan horia Ph. D., member of Romanian Academy of
Technical Sciences Prof. Coşmeleaţă georgeta Ph. D. Prof.
Dumitrescu Constantin Ph. D., deputy member of
Romanian Academy of Technical Science Prof. French David Ph. D., CSIRO Energy Technology, Australia Prof. Găluşcă Dan-Gelu Ph. D. Prof.
Mihaela Grigore Ph. D., University of New
South Wales, Sydney, Australia Prof. Lawson Cristopher Ph. D., Copenhague Technical Institute, Denmark Prof. Nicolae Avram Ph. D. Prof. Maria Nicolae Ph. D. Prof.
doc. Oprea Florea Ph. D., member of Romanian
Academy of Technical Sciences Prof.
Veena Sahajwalla Ph. D., University of New South Wales, Sydney, Australia Prof. Sakurovs Richard Ph. D.,
CSIRO Energy Technology, Australia Prof. Salvo Luc Ph. D., Grenoble National Politechnical
Institute, France Prof. Saiter Jean-Marc Ph. D., Rouen University, France Prof. Scorţea Costin Ph. D. Prof. Simiti Ioan Vida Ph. D. Prof.
Sofroni Laurenţie Ph. D., member of
Romanian Academy of Technical Sciences Prof. Şaban Rami Ph. D Prof. ŞTEFĂNESCU DORU Ph. D, Ohio State University Columbus, S.U.A. Scientific refferents team: Prof. bejan Mircea Ph. D Prof. cănănău nicolae Ph. D Prof. hepuţ teodor Ph. D Prof. TODERIŢA
NEMEŞ Ph. D Prof. Doina Răducanu Ph. D Prof. Ripoşan Iulian Ph. D Prof. samoilă Corneliu Ph. D Prof. SOFONEA GALAgTION
Ph. D Managing Director: Editor-in-chief: Professor Scorţea
Costin Ph. D. Manager Scientific Publishing House F.M.R.: eng. Florentina
Brβnduşa Scorţea |
Contents Issn 1582 2214 Ştefănescu Doru: Microstructure evolution during the
solidification of steel
.. 5 Ciobanu Ioan, Monescu
Vlad, Maşniţă Mihai, roşescu Gheorghe: Research by computer
Simulation of the solidification regarding the influence
of the moulds thermophysical characteristics
over the
castings solidification
..
.. 16 CALEA G. Gheorghe,
GHIMIŞ D., PAUN C., PAUN S.,
NICOLAE Avram, ŞTEFĂNESCU Doru: Studies regarding the functioning of some parts in the metalic distribution systems of the oil related
fluids
..
.. 27 Rodica-Mariana Ion: Nanomaterials from materials science to chemical science
.. 33 Carmen Judith Grigorescu: Production function use in the decision making process
related to the metallurgical industry
production factor allocation and combination
..
41 Elena Drăgulănescu : About management of the designing
aesthetic shapes of the objects in the
technique
... 44 ? FOSECO
Turbostop system reference list
I-II ? Press
release
..
..
........... III
VI ? New books,
published by romanian metallurgical
foundation
.
..
..... VII - VIII |
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abstract
metalurgia International 6/2006
|
Key words: microstructure evolution; steel; peritectics;
solidification; modeling Ştefănescu Doru: Microstructure evolution during the solidification of
steel Metalurgia International (vol. XI), no.6, 2006,
p. 5 In todays material world
it is agreed that a complete understanding of the solidification path and of
the resulting microstructure can only be obtained by treating the alloys as
mathematical systems, followed by validation of the models through definitive
experiments. This paper will attempt to review the main recent experimental
and mathematical efforts directed to the understanding of microstructure
evolution in steel. D.C.: 621.746.628 Ciobanu Ioan, Monescu
Vlad, Maşniţă Mihai, roşescu Gheorghe: Research by computer simulation of the
solidification regarding the influence of the moulds thermophysical
characteristics over the castings solidification Metalurgia International (vol. XI), no.6, 2006,
p. 16 This paper presents the results of a research
regarding the influence of the moulds thermophysical characteristics made
from moulding sand over the castings solidification. The research was made by
solidification simulation of a plate (casting) from eutectic grey cast iron
with a = 20mm thickness. It was studied the influence of the heat
accumulation coefficient and the thermal diffusivity coefficient over the
solidification time and over the temperature field from the mould. The
solidification time is influenced only by the heat accumulation coefficient.
Practical, the thermal diffusivity coefficient isnt influencing the
solidification time, but only influencing the temperature field from the
mould. D.C.: 574 CALEA G. Gheorghe,
GHIMIŞ D., PAUN C., PAUN S.,
NICOLAE Avram, ŞTEFĂNESCU Doru: Studies regarding the functioning of
some parts in the metalic distribution
systems of the oil related fluids Metalurgia
International (vol. XI), no.6, 2006, p. 27 This paper presents the main materials used in
building oil distribution systems, their properties as well as the main
quality standards used in building these oil distribution systems. |
D.C.: 669.2/.8 Rodica-Mariana Ion: Nanomaterials from materials science to chemical
science Metalurgia
International (vol. XI), no.6, 2006, p. 33 Materials
Science goes back to prehistoric times, where people started to utilize
rocks, bones, leather, and other things they found in Nature to fabricate
tools and clothing. Later, this knowledge evolved and metals, alloys,
ceramics, and fabrics replaced the older materials with inferior properties.
In historic times, the knowledge of materials and processing improved further
and more sophisticated materials for more sophisticated (or fashionable)
applications became available. An example of a historic high-tech material is
Damascus Steel, which is responsible for the extraordinary sharpness of
historic sword blades from the D.C.: 669. Key words: production factors, functions, optimum, allocation, combination,
products Carmen Judith Grigorescu: Production function use in
the decision making process related to the metallurgical industry production
factor allocation and combination Metalurgia
International (vol. XI), no.6, 2006, p. 41 In this
paper, I focused myself on the optimum
use and knowledge of the production functions necessary for the production
factors combination and allocation process in the metallurgical industry in
order to strengthen efficiently the economic decisions related to the
responsible decidents. D.C.: 621.762.4; 66.046.562 Elena Drăgulănescu : About management of the designing aesthetic shapes
of the objects in the technique Metalurgia
International (vol. XI), no.6, 2006, p. 44 Aesthetic shapes of the objects in the technique is a
very important side for the future effect concerning possibilities of the
sale for any kind of objects. The process of establishing an aesthetic shape
involves some stages which are described in this work. This is possible
through a good and modern designing and needs a good management. In this paper are presented some ideas in this area. For all the products and in
metallurgy the management of the designing process under all its aspects is
very important. |
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