Redacţia, administraţia: Calea Griviţei, nr.83, Sector 1, O.P. 12, Cod 010705, Bucureşti Tel.: 004 021/ 310.71.38 GSM: 0722 665 071; 0724 537 051 Fax: 004 021/ 310 71 38 E-mail: redactia@metalurgia.ro; www.metalurgia.ro Contul EDITURII ŞTIINŢIFICE F.M.R.: Lei: BCIŢ, Sucursala Rosetti, Bucureşti Cod IBAN: RO55 CBIT 4260 1037 4300 1000 USD: BCIT Sucursala rosetti, Bucureşti Cod IBAN: RO21 CBIT 4260 1037 4300 2000 Euro: BCIT Sucursala rosetti, Bucureşti Cod IBAN: RO84 CBIT 4260 1037 4300 3000 Costul unui abonament: lei 4 800 000 Copyright © 2005 EDITURA ŞTIINŢIFICĂ F.M.R. 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 The copyright of parts from this publication is allowed with the written agreement of the editor	Metalurgia revistă fondată în 1948 Revistă editată de editura ştiinţifică f.m.r. preşedintele onorific al editurii ştiinţifice f.m.r. Dr. Ec. Lepădatu V.Gheorghe Editura Ştiinţifică F.M.R. Lei : BCIŢ, Sucursala Rosetti, Bucureşti; Cod IBAN : RO55 CBIT 4260 1037 4300 1000 USD : BCIT Sucursala rosetti, Bucureşti; Cod IBAN : RO21 CBIT 4260 1037 4300 2000 Euro: BCIT Sucursala rosetti, Bucureşti; Cod IBAN : RO84 CBIT 4260 1037 4300 3000 Cod fiscal: 9471842 Calea Griviţei, nr.83, Sector 1, O.P. 12 Cod 010705 Bucureşti Tel: 004 021/ 310.71.38; 0722 665 071;0724 537 051 Fax: 004 021/ 310.71.38 E-mail: redactia@metalurgia.ro www.metalurgia.ro Nr.6 iunie 2005
preşedinTii colegiilor de redacţie Prof. dr. ing. NICOLAE AVRAM Prof. dr. ing. SCORŢEA COSTIN
colegiul onorific (în ordine alfabetică) I.Ågren (Suedia), dieter ameling (GERMANIA), borş ionel, bordea marius, chiriac cornel, chiţu gheorghe,constantin radu, dobra gheorghe, dumitrescu constantin, R. S. HOUK (S.U.A.), T.Y.Hsu (China), ioan romulus, christopher lawson (danemarca), y. matsubara (Japonia), moldovan petre, nicolae avram, D. R. J. OWEN (SWANSEA, UK), radu nicu, roşescu gheorghe (grecia), roxana ruxandra (california), sofroni laurenţie, Jean-marc saiter (franţa),tudor paul, văzdăuţeanu vasile
Preşedinte al colegiului executiv de redacţie Prof. dr. ing. SCORŢEA COSTIN Colegiul executiv Prof. dr. ing. bejan Mircea Prof. dr. ing. cănănău nicolae Prof. dr. ing. GĂLUŞCĂ DAN GELU Prof. dr. ing. hepuţ teodor Prof. dr. ing. IONIŢĂ GHEORGHE Conf.dr. ing. TODERIŢA NEMEŞ Prof. dr. ing. MARIA NICOLAE Prof. dr. ing. Ripoşan Iulian Prof. dr. ing. samoilă Corneliu Prof. dr. ing. SCORŢEA COSTIN Prof. dr. ing. SIMITI IOAN VIDA Prof. dr. ing. SOFONEA GALAFTION Prof. dr. ing. Şaban Rami Corpul referenţilor ştiinţifici 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, Conf. dr. ing. Semenescu Augustin, 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 NICOLAE Avram: Notaţii pe marginea unor prevederi ale dreptului de mediu (DM). Durabilitatea – atribut necesar pentru materiale, produse şi activităţi industriale, de gospodărire şi normatoare ................................................ 5 Năstase Constantin: Cercetări privind mişcarea unidimensională şi nestaţionară a gazelor prin medii poroase ..................................................................... 10 GHIMBĂŞEANU Ioan: Metodă de calcul a unui regulator numeric pentru controlul unei atmosfere controlate de tip Endo din cadrul unui proces de carburare ..... 20 Ana - Luciana Rus: Superplasticitatea aliajelor de cupru ...................................... 26 Amalia Ana DASCĂL, MAKSAY Ştefan, Camelia PINCA-BRETOTEAN, HEPUŢ Teodor: Studii numerice asupra optimizării compoziţiei chimice pentru oţelul olt 35k în vederea obţinerii de caracteristici mecanice superioare la temperaturi ridicate ............................................................................................... 30 Nussbaum Adrian-Iacob, Carmen Hărău, Raţiu Sorin, Ilca Ioan: Analiza unor influenţe asupra parametrilor de forţă şi calităţii oţelurilor laminate ....... 37 Georgeta COŞMELEAŢĂ: 80 de ani de la naşterea Prof.dr.ing. GERU Nicolae .......43 + Informaţii din metalurgia mondială ..................................................................... I + Noutăţi din trecut ................................................................................................. V + Semnalări ....................................................................................................... VIII +Evenimente Internaţionale ..................................................................... X ª Conferinţe – Congrese – Târguri – Expoziţii ............................................... X + Cărţi noi …....................................................................................................…XII + Cărţi apărute la Editura Ştiinţifică F.M.R ............................................. XIII - XVI + Revista revistelor ............................................................. 9, 19, 25, 29, 36, 42, VII

abstract metalurgia 6/2005

D.C.: 574 NICOLAE Avram: Notations concerning some provisions of the environmental law (EL). Sustainability - a necessary attribute of materials, products and industrial, management and standardization activities Metalurgia (57) 2005, nr. 6, p. 5 According to the data available in the juridical literature, some notions concerning the regulation and regulation methods are presented. The eco-materials, eco-products and eco-technologies are defined based on these norms. There are justified the reasons for which today the prefix “eco” is out of date. It is demonstrated why nowadays these notions must comply with the norms imposed by the desideratum (attribute) “sustainable”. D.C.: 662.69 Năstase Constantin: Investigations regarding the transient and unidimensional motion of gases through porous environment Metalurgia (57) 2005, nr. 6, p. 10 In the practice of gas distribution, through a porous environment, considered as homogenous, the transient and unidimensional motion is frequently met. In time, the ratio between filtering velocity for transient and stationary motion is growing up near to 1. D.C.: 66.046.562 GHIMBĂŞEANU Ioan: Calculation method of a numerical regulator for controlling a Endo-typed controlled atmosphere in a carburization process Metalurgia (57) 2005, nr. 6, p. 20 The paper describes several research studies on the identification and the control of ENDO-typed controlled atmosphere in a carburization process. Combining the calculation methods of the regulators and the identification techniques of the process models, a rigurous procedure as well as a calculation performance will be obtained. The calculation and the adjustment of different types of regulators require a sound knowledge of the discret parametric model of the process to adjust. D.C.: 669.3 Keywords: superplasticity, grain refinement, strain rate, strain rate sensitivity exponent, thermomechanical processing. Ana - Luciana Rus: Superplasticity of copper alloys Metalurgia (57) 2005, nr. 6, p. 26 Superplastic behaviour has been reported for a range of α/β copper alloys including brasses,

aluminium bronzes and nickel-silvers, and also for the single phase copper dispersion alloy, Coronze (CDA-638). The paper briefly reviews the copper alloys, the superplastic properties of these and the methods for grain refinement. D.C.: 539.4/.5 Keywords: experimental testing, thermal-resistant steel, high temperature, numerical processing, mathematical pattern-making Amalia Ana DASCĂL, MAKSAY Ştefan, Camelia PINCA-BRETOTEAN, HEPUŢ Teodor: Numerical research on the optimalization of the chemical composition for OLT 35K steel with a view to obtaining superior mechanical features at high temperature Metalurgia (57) 2005, nr. 6, p. 30 The paper presents the results of the research made under laboratory experimental testing, on OLT 35K steel, intended to the manufacturing of tubes, used at high temperature in the make-up of thermal-energetic installation. Mechanical driving testing has been made at the temperature of 450°C, on shares of test-bars drawn out of a number of 50 charges, with a view to achieving the optimalization of the chemical composition of this steel type. The optimalization, under experimental dates, suggests alternatives of combinations among the main elements of the chemical composition, so as the steel can be elaborated with superior mechanical features at high temperature. The obtained results have a large feasibility area, and can be also endorsed for other steel types and mechanical features for which the optimalization is viewed, therefore being very useful to technologists, in the process of achieving a certain type of steel. D.C.: 621.771 Nussbaum Adrian-Iacob, Carmen Hărău, Raţiu Sorin, Ilca Ioan: Analysis of some influences upon the force’s parameters and the quality of the rolled steels Metalurgia (57) 2005, nr. 6, p. 37 The research aimed at finding solutions for the ferrite dissolution in the structural matrix of steel and the improvement in deformability. The results allowed the optimisation of the technology by reducing the heating-up duration, and by dissoluting and globulising the ferrite.