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Metalurgia
(revistă fondată în anul 1948) federaţia
patronală metalurgia şi editura
ştiinţifică f.m.r. Preşedinte ing.
borş ionel
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preşedintele onorific al editurii ştiinţifice f.m.r. Dr. Ec. Lepădatu
V.Gheorghe |
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colegiul
onorific (în
ordine alfabetică) Ĺgren (Suedia), ameling dieter (GERMANIA), bensabra
hakim (algeria), BORDEA MARIUS, chabour
salem (algeria), chiţu gheorghe, french david (Australia), gencang
yang (china), mihaela grigore (australia),
JOANNA GROZA (UNIVERSITY OF CALIFORNIA, DAVIS, s.u.a.), P.D. hodgson
(deakin university, Australia), R.
S. HOUK (S.U.A.), T.Y.Hsu (China),
I. IMRIŠ (TECHNICAL UNIVERSITY
OF KOŠICE, SLOVAK
REPUBLIC), ioan
romulus,
jiang wan (china),
L. KUZNETSOV (LIPETSK STATE
TECHNICAL UNIVERSITY, RUSIA),V.MARINA (TECHNICAL UNIVERSITY,
CHIŞINĂU, MOLDOVA), y. matsubara
(Japonia), MARIA-TEREZA NOGUEIRA (FACULTY OF
SCIENCE AND TECHNOLOGY, LISABONA, PORTUGALIA), D. R. J. OWEN (SWANSEA,
UK), puşici miho
(Slovenia), radu nicu, rizescu
corneliu, roşescu
gheorghe (grecia), roxana
ruxandra (california), sakurovs richard (australia), TAKEHIDE SENUMA (OKAYAMA UNIVERSITY), TATEO USUI (OSAKA UNIVERSITY), S. VODENICHAROV (INSTITUTE OF
METAL SCIENCE, BULGARIA), w.m. nicola (tri. state university angola, indiana,
s.u.a.), xianqing you (china) |
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Preşedinţii
colegiului de redacţie Prof. dr. ing.
NICOLAE AVRAM Prof. dr. ing.
SCORŢEA COSTIN Colegiul
de redacţie Prof. dr. ing. bejan
Mircea Prof. dr. ing. cănănău
nicolae Prof. dr. ing. Elena drăgulănescu, Catedra GDGI, Facultatea de Inginerie
Aerospaţială, U.P.B., Bucureşti Prof.
dr. ing. Dumitrescu Constantin, membru corespondent al Academiei de
Ştiinţe Tehnice Prof. dr. ing. hepuţ teodor Prof. lawson christopher, Institutul Tehnic Copenhaga, Danemarca Prof. dr. ing. MARIA NICOLAE Prof. dr. doc. Oprea Florea, membru
al Academiei de Ştiinţe Tehnice Prof. sahajwalla veena, Universitatea New South
Wales, Sydney,Australia Prof. saiter Jean-marc, Universitatea Rouen, Franţa Prof.
SALVO LUC, Institutul
National Politehnic, Grenoble, Franţa Prof. dr. ing. samoilă
Corneliu Prof. dr. ing. SCORŢEA
COSTIN Prof. dr. ing. SOFONEA GaLAgTION Prof.
dr. ing. SOFRONI LAURENŢIE, membru
al Academiei de Ştiinţe Tehnice Prof.
dr. ing. Şaban Rami, Decan, Facultatea de
Ştiinţa Materialelor, U.P.B. Bucureşti Prof. dr. ing. ŞTEFĂNESCU DORU,
Ohio State University Columbus,
S.U.A. Referenţi ştiinţifici Prof. dr. ing. Ciobanu
Ioan, Prof. dr. ing. anişoara
ciocan, Prof. dr. ing.
Crişan Aurel, Prof. dr. ing. constantin
Nicolae, Prof. dr .ing.
Miloşan Ioan, Prof. dr. ing. Nagy Emil, Prof. dr. ing. Maria
Nicolae, Prof. dr. ing. Tamara radu,
Prof. dr. ing. Doina
Răducanu, Prof. dr. ing. Rusu Nicolae, Prof. dr. ing. Rusu
Tiberiu, Conf. dr. ing. Semenescu Augustin, Dr. ing. Varga
Bela, Conf. dr. ing.
Vizureanu Petrică Director
General Editura Ştiinţifică F.M.R. Redactor
Şef. Ing. BRÂNDUŞA FLORENTINA SCORŢEA Asistent
Editura Ştiinţifică F.M.R. Procesare -tehnoredactare: ANCA ION |
SUMAR ISSN
0461-9579
Sofroni
Laurentie, Ciobanu Ioan, Speranţa Stomff, Maşniţă Mihai,
Monescu Vlad: Procedee ecologice de turnare în forme temporare. Partea a II-a: dimensionarea
stratului activ ..............................................................................................................................
5 Vizureanu
Petrică, Agop Marcel, GherGhian M., Ioannou P. D.: Fenomene de autoorganizare în
structurile materiale cu aplicaţii în nanotehnologii. Transferul termic în transformarea austenită-martensită
(II) ............................................................... 11 VERMESAN Horaţiu: Coroziunea pieselor din pulberi metalice supuse la
nitrurare ionică ...... 19 Andrei
Victor: Calitatea produselor turnate din
aliaj de aluminiu AlMgSi2 0.6 …….....…… 23 Nedelcu Dorian: Studiul
numeric al concentratorului de tip racordare circulară …............. 27 POPA
Marin, SONTEA Sever: cercetări privind aportul
defectoscopiei nedistructive asupra tehnologiilor de elaborare şi
prelucrare a unor aliaje de aluminiu turnate (Partea a I-a) ...........................................................................................................................
34
Carmen
Judith Grigorescu: Analiza medie-varianţă ……………………………………….
39 Cleopatra Şendroiu, Aureliana Geta Roman,
Roman Costantin: Contabilitatea mediului: suport pentru managementul ecologic …...........................................................
43 Valentina
Zaharia: Managementul carierei la nivel European
.................................................. 48 Marinella
Turdean: Indicatori sociali de sinteză ..............................................................
52 F
Informaţii din metalurgia mondială ………………………….…………………………………...
I F Semnalări …………………………………………………………………………..…………….....
II F EVENIMENTE INTERNAŢIONALE ………...………...……………………..……..….…… XIII o
conferinţe
– târguri – expoziţii – simpozioane – forum …………………..………… III F Cărţi apărute la EDITURA
ŞTIINŢIFICĂ F.M.R. ….……………………..….….…….. V - VIII F
Revista revistelor ….…………..………………….…..………..………
10, 18, 33, 38, 42, 51, 54,IV |
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abstract metalurgia 5/2007
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D.C.: 621.746.628 Sofroni Laurentie, Ciobanu Ioan, Speranţa
Stomff, Maşniţă Mihai, Monescu Vlad: Ecological pouring procedures in temporary moulds.
Second part: active layer dimensiong Metalurgia (59) 2007, nr. 5 p. 5 In the first part of this paper it was analysed
several ecological pouring procedures based on moulds made from sand without
bond, bonded by depressurisation. At the ”Politehnica” University of
Bucharest was experimented a pouring proceeding in combined moulds with
active layer from loam with cold hardened resin and sand holder layer without
bond, bonded by depressurisation. In this paper is presented the dimensioning
mode (way) of the mould active layers thickness. It’s starts from the
condition that after poring of the casting the bond from the active layer is
burned out completely, so it can be secured an easy knock - out of mould of
it, and the sand could be recycled, it mustn’t be necessary regenerating
operations. D.C.: 669.017.12 Vizureanu Petrică, Agop Marcel, GherGhian M.,
Ioannou P. D.: Selforganisation phenomena in material structures.
Applications in nanotechnologies. Thermal transfer during the
austenite/martensite transformation (II) Metalurgia (59) 2007, nr. 5 p. 11 To approach the transfer phenomena during the austenite-martensite
transformation, the special literature was consulted /1/, /2/. The martensitic
transformation is now considered as one of the most important transformations,
because this is present in many pure metals featuring polymorphic
transformations and also in a lot of ferrous and nonferrous alloys,
containing solid solutions with polymorphic, eutectoid or peritectoid
transformations. This transformation is also present in some minerals. D.C.: 669.73;574 VERMESAN Horaţiu: Corrosion
of metal powder samples submitted to nitriding ionization Metalurgia (59) 2007, nr. 5 p. 19 The following paperwork analyzes the behavior at
corrosion of stainless steel powder samples submitted to nitriding
ionization. After the nitriding ionization of stainless steel
powder samples, their structure, hardness and the nature of the formed on the
surface were analyzed using the X-ray method. The studies made on corrosion
were based on chronopotentiometric diagrams. The experimental results prove
that nitriding at temperatures above 530°C, for 20 h, leads to a decrease of
the corrosion resistance, the potential curve tacking even more negative
values than the untreated sample.
Key words: the quality produced Andrei Victor: The quality produced poured from alloy of aluminium AlMgSi2
0.6 Metalurgia (59) 2007, nr. 5 p. 23 The quality castings is
achieved through the utilization auditing which his needles notice the state
systems to the respective moment. In the frame submissive systems check must
appreciate the aleatory parameters Key
words: circular fillet corner Nedelcu Dorian: Numerical
study of the local stress for a circular filler corner Metalurgia (59) 2007, nr. 5 p. 27 The components from the engineering domain include
section variation due specific elements (thread holes, grooved wedge, thrust
collar, etc.), where the experimental and theoretical studies show local
stress with increased values comparative with the calculated stress values by
classical resistance formulas. The paper present a numerical study of the
local stress for a circular fillet corner with |
tensile force applied on a rod shaped and comparative results of the
numerical and experimental data. D.C.: 537 POPA Marin, SONTEA Sever: Research
regarding the influence of nondistructive defectoscopy on different
technologies of cast Al alloys making and working (Part I) Metalurgia (59) 2007, nr. 5 p. 34 This paper presents the authors’ researches regarding
the elaboration of certain aluminium alloys, with different technological
variants, some of which having an inadequate porosity, and the contribution
of non-destructive testing on the quantification of faults. In the first part they present the elaboration and
technologies, and in the other parts non-destructive testing technologies and
the statistic processing of these data in order to obtain a relationship
between the ultrasonic attenuation, density and mechanical properties. Key words: portfolio, risk, mutual
funds, risk less assets, investor Carmen Judith Grigorescu: The average-variation analyse Metalurgia (59) 2007, nr. 5 p. 39 The modern Portfolio Theory was initially developed
by Markowitz in the years 1950–1960 and followed up by Tobin and Sharpe,
representing the first step to the modern financial theory. The main
problem which investors are confronting is how much did they have to invest
in each action, and the average-variance is trying to answer to this
question. Key words: environment accountancy, environment costs, environment benefits,
environment aspects Cleopatra Şendroiu,
Aureliana Geta Roman, Roman Costantin: The environment accountancy support for
the environmental management Metalurgia (59) 2007, nr. 5 p. 43 The decisional factors
within an organization can use the information on costs and benefits offered
by the environmental accounting in order to make decisions with an impact not
only on the financial performances of the organization, but also on the
environment. The environmental accounting supports the process of
decision-making. As for the organizations and programs whose targets are the
minimization of costs (especially those environment-related costs) and of the
negative impact on environment, this type of accounting offers a set of
information which is very useful to the attainment of such targets. Key words: career management, flexible career, traditional
career, career balance Valentina Zaharia:Career management at European level Metalurgia (59) 2007, nr. 5 p. 48 Within an organization, the careers
context is changing on long term, with a upward
movement towards careers and being characterized by interruptions, movements
between employers and the development of an activities portfolio. The careers
are possessed by individuals and the main responsibility in their management
is due to the individual; the organizations have a role of supporting and
encouraging this situation. Key words: social indexes Marinella Turdean:Social syntheses indexes Metalurgia (59) 2007, nr. 5 p. 52 The main social synthesis indexes are analyzed in the
paper (longevity, capacity of people to learn and reach new knowledges during
their life, access to material resources in order to achieve a decent
standard of life. Special attention is paid to sustenable human development
of poor population. Longevity,
education level, and standard of life are calculated for Romanian condition
as per year 2005. |
Atenţie !
E În conformitate cu paragraful 2.6 din acordul de
licenţă dintre EBSCO Publishing Inc. (S.U.A.) şi
FUNDAŢIA METALURGIA ROMÂNĂ (ROMÂNIA)
revistele METALURGIA şi METALURGIA INTERNAŢIONAL sunt incluse în baza
de date EP Products, începând cu data de 1.07.2006.
E Revistele noastre pot fi găsite în baza de date
EBSCO pe site-ul: www.ebscohost.com la
rubrica „Computers and Applied
Sciences Complete”,
poziţiile
1026 şi 1027.
E Începând cu data de 01.01.2007 revista METALURGIA
INTERNAŢIONAL este introdusă şi în baza de date SCOPUS
aparţinând lui ELSEVIER BIBLIOGRAPHIC DATABASES – Amsterdam (Olanda).
E According to paragraph 2.6 of license agreement between
EBSCO Publishing Inc. (U.S.A.) and FUNDAŢIA METALURGIA ROMÂNĂ
(ROMÂNIA) the journals METALURGIA şi METALURGIA INTERNAŢIONAL are included in EP Products, starting from July 1st, 2006.
E These journals are included on EBSCO’s site: www.ebscohost.com , chapter „Computers and
Applied Sciences Complete”, pozitions 1026 and
1027.
E Starting from January 1st the
journal METALURGIA INTERNATIONAL is also in the SCOPUS database,
belonging to ELSEVIER BIBLIOGRAPHIC DATABASES – Amsterdam (Netherlands).
Copyright © 2007 Nici un material din această
revistă nu poate fi reprodus, difuzat sau folosit în orice alt mod decât
cu aprobarea scrisă a editorului.
Manuscrisele şi documentele nepublicate (fotografii,
pliante, cărţi) expediate pe adresa redacţiei, din
iniţiativa autorilor, nu se restituie.
Potrivit
art.206 CP, responsabilitatea juridică pentru conţinutul articolului
aparţine autorului. De asemenea, în cazul unor agenţi de presă
şi personalităţi citate, responsabilitatea juridică le
aparţine.
Reproducerea de
părţi din această revistă este permisă cu acordul
scris al editorului.
ANUNŢ
IMPORTANT
Revista METALURGIA (poziţia 480) şi revista METALURGIA
INTERNAŢIONAL (poziţia 481) sunt acreditate de CNCSIS la categoria
B .
Editura
Ştiinţifică F.M.R. se află la poziţia 104
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Copyright © 2007 EDITURA ŞTIINŢIFICĂ F.M.R. EDITURĂ
ACREDITATĂ DE C.N.C.S.I.S. |
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