GAVRIL NEGREA

Profesia:
Inginer Mecanic
Functia:
Conferentiar
Studii:

Studii universitare:

1980-1985 Institutul Politehnic din Cluj-Napoca, Facultatea de Mecanica Diploma de Inginer mecanic, Specializarea Utilaj Tehnologic (1985)

Studii de doctorat:

1993-1999 Universitatea Tehnica din Cluj-Napoca, Facultatea de Stiinta si Ingineria Materialelor   

Diploma de Doctor in Inginerie Mecanica, Specialitatea Utilaje şi Instalaţii Termice şi Termochimice (1999)

Titlul tezei de doctorat: Cercetari privind obtinerea unor straturi dure prin depunere din faza de vapori                                                    

Experienta profesionala:

1985 - 1991: Institutul de Cercetare Ştiinţifică şi Inginerie Tehnologică pentru Prelucrări la Cald (ICSITPSC) - Filiala Cluj-Napoca, Funcţia: Inginer proiectant

1991 - prezent:  Universitatea Tehnică din Cluj-Napoca, Facultatea de Stiinţa şi Ingineria Materialelor, Catedra de Ingineria Suprafeţelor şi Protecţia Mediului;

Funcţii:   1991 - 1993: Asistent

1993 - 2001: Şef lucrări

din 2001: Conferenţiar

Vizite de studiu/cercetare

in strainatate:

1992 - 7 luni Universitatea din Nottingham, Anglia, bursa Tempus

1994 - 3 luni Universitatea din Nottingham, Anglia, bursa Tempus

1996/1997 Universitatea din Lincoln, Nebraska, SUA, bursă Fulbright pentru un an universitar

1998 - 2 luni Universitatea din Trento, Italia, bursa Tempus

Domenii de interes stiintifiic:

    - Tratamente termice

    - Tehnologii de ingineria suprafetelor

    - Echipamente tehnologice pentru tratamente termice

Activitate stiintifica:

- 4 cărţi (3 - coautor, una autor unic)

- 2 indrumătoare de lucrări de laborator (coautor)

- 25 de lucrări ştiinţifice publicate in Reviste (21 din Romania, 4 din strainatate) 

- 38 de lucrări publicate la Conferinţe (30 in Romania, 8 in strainatate)

- 22 de contracte de cercetare

Cursuri predate:
- Tratamente termice si ingineria suprafetelor

- Procedee neconventionale de tratamente termice si modelare

- Utilaje si linii automate pentru tratamente termice

Limbi straine:
Engleza
Membru in organizatii stiintifice:

Asociatia de Tratamente Termice si Ingineria Suprafetelor din Romania

Publicatii: CARTI: 
  • G. NEGREA, Depunerea chimică din vapori a straturilor de diamant, Editura Risoprint, Cluj-Napoca, 2001.
  • H. VERMEŞAN, A. MUNTEANU, G. VERMEŞAN, G. NEGREA, Carburarea, Editura Risoprint, Cluj-Napoca, 2001.
  • H. VERMEŞAN, G. NEGREA, Ingineria suprafeţelor – lucrări practice, Editura Risoprint, Cluj-Napoca, 2001.
  • VERMESAN G., VERMESAN E., JICHISAN-MATIESAN D., CRETU A., NEGREA G., VERMESAN H., VLAD M. – Introducere în ingineria suprafetelor, Editura Dacia, Cluj-Napoca, 1999.
  • ARGHIR, G., CANTA, T, CREŢU, A., CRIŞAN, A., GEAMĂN, V., GORDO, E., IANCĂU, V., JICHIŞAN-MATIEŞAN, D., MICLE, V., MILOŞAN, I., MOLINARI, A., NAGY, E., NEGREA, G., NICA, D., RUSU, T., SOPORAN, V., TORRALBA, J.M., VELASCO, F., VERMEŞAN, G., VERMEŞAN, H., DAN, V., ZIRBO, G., Procedee avansate în ingineria suprafeţelor, Editura U.T. Press, Cluj-Napoca, 1998.
  • I. BIRIS, M. BOER, G. NEGREA, Agregate şi instalaţii termice metalurgice – lucrări de laborator, Universitatea Tehnică din Cluj-Napoca, 1996.

ARTICOLE (lista selectiva): 

  • G. NEGREA, H. VERMESAN, V. RUS, Study on corrosion of chromium nitride and titanium nitride coatings in liquid aluminium, 1st Internat. Conference on Heat Treatment and Surface Engineering of Tools and Dies, 08-11 June 2005, Pulo, Croatia, Proceedings p. 119.

  • V. RUS, G. NEGREA, H. VERMESAN, Experimental research concerning the thermal shock behaviour of some ion nitrided stainless steel, 1st Internat. Conference on Heat Treatment and Surface Engineering of Tools and Dies, 08-11 June 2005, Pulo, Croatia, Proceedings p. 311.

  • V. RUS, D. FRUNZA, G. NEGREA, Numerical and experimental simulation of thermal shock loading, Scientific Bulletin of the “Politehnica” University of Timisoara, Tom 50 (64), 2005, p. 33.

  • C. MEDREA BICHTAS, G. NEGREA, Microstructure transformations in a warm rolled low carbon steel during subsequent heating, 2nd International Conference on Thermomechanical Processing of Steels, June 15-17, 2004, Liege, Belgium, Proceedings, p. 67.

  • C. MEDREA BICHTAS, G. NEGREA, Ş. DOMŞA, Study on warm rolled AISI 1015 carbon steel, Zeitschrift für Metallkunde, vol. 95, no. 3/2004, p. 176.

  • C. MEDREA-BICHTAS, G. NEGREA, S. DOMSA, Influence of warm working parameters on deformation behavior and microstructure of AISI 1015 carbon steel, International Journal for Manufacturing Science & Technology, vol. 4 (2003), no.2, p. 38.

  • NEGREA G., PORCAR D.D., Influence of deposition conditions on microhardness and adhesion of chromium nitride films obtained by reactive sputtering, Acta Technica Napocensis, Section: Construction Machines, Materials, nr. 46/2003, p. 57.

  • MEDREA BICHTAS C., NEGREA G., Quantitative microscopy analysis of warm worked AISI 1015 carbon steel, 4th International Conference on Industrial Tools, ICIT 2003, 8-12 Apr. 2003, Bled, Slovenia, Proceedings p. 145.

  • G. NEGREA, Some Considerations Concerning the Chemical Vapour Deposition of Diamond from Water-Methanol Mixture, Third International Conference on Advanced Materials and Technologies, MATEHN ’02, Cluj-Napoca, 12-14 Sept. 2002, Proceedings, p. 649.

  • G. NEGREA, Consideraţii privind modelarea procesului de depunere prin pulverizare catodică a straturilor de TiN, Conferinţa Naţională de Metalurgie şi Ştiinţa Materialelor CNMSM 2002, 10-11 oct. 2002, Bucureşti, Proceedings, p. 372.

  • G. NEGREA, L. BRÂNDUŞAN, S. BARTHA, Cercetări privind influenţa nitrurării ionice asupra comportării la oboseală a oţelurilor OLC45 şi 41MoCr11, Conferinţa Naţională de Metalurgie şi Ştiinţa Materialelor CNMSM 2002, 10-11 oct. 2002, Bucureşti, Proceedings, p. 237.

  • G. NEGREA, H. VERMEŞAN, Nucleation and growth of diamond films on molybdenum by hot-filament assisted CVD, Second International Conference on Advanced Materials and Structures, 19-21 Sept. 2001, Timişoara, Proceeding, p. 287.

  • G. NEGREA, M. ZANC, Evaluation of wear behavior of diamond coatings, Second International Conference on Advanced Materials and Structures, 19-21 Sept. 2001, Timişoara, Proceeding, p. 281.

  • G. VERMEŞAN, G. NEGREA, Inginerie des surfaces, Traitement thermique, mai 2001, p. 45.

  • G. NEGREA, V. RUS, Tratament duplex aplicat oţelului inoxidabil austenitic AISI 304, Conferinţa Naţională de Metalurgie şi Ştiinţa Materialelor CNMSM 2001, Bucureşti 20-21 sept. 2001, Proceeding, p. 478.

  • H. VERMEŞAN, G. VERMEŞAN, G. NEGREA, Comportarea la tratamentul cu fascicul laser a fontelor cenuşii, Conferinţa Naţională de Metalurgie şi Ştiinţa Materialelor CNMSM 2001, Bucureşti 20-21 sept. 2001, Proceeding, p. 585.

  • G. NEGREA, G. VERMEŞAN,  Investigations of diamond layers growth on steel, Romanian Conference on Advanced Materials “RoCAM 2000”, Bucureşti, 23-25 oct. 2000, publicat în Journal of Optoelectronics and Advanced Materials, vol. 2, no. 5 (2000), p.698.

  • G. NEGREA, Microabrasive wear testing of some thin hard coatings, Third International Congress on Materials Science and Engineering, 31.V – 2. VI 2000, publicat în Buletinul Institutului Politehnic Iaşi, Tomul XLVI (L), Fasc. 3-4, p. 33.

  • G. NEGREA, Modeling of reactive sputter deposition process of TiN thin films, Acta Technica Napocensis, Section: Construction Machines, Materials, no. 42, (1999), p.95.

  • G. NEGREA, Unele aspecte privind tensiunile remanente din straturile de TiN depuse prin pulverizare catodică reactivă, Conferinţa Internaţională de Ştiinţa şi Tehnologia Materialelor, “BRAMAT ‘99”, 3-5 febr. 1999, Brasov, vol. III, p. 240.

  • M.L. KURUPPU, G. NEGREA, I.P. IVANOV, S.L. ROHDE, Monolithic and Multilayer Cr/CrN, Cr/Cr2N and Cr2N/CrN Coatings on Hard and Soft Substrates, Journal of Vacuum Science and Technology, A 16(3), May/June 1998, p. 1949.

  • M.L. KURUPPU, G. NEGREA, S. KIRKPATRICK, D. MIHUT, S.L. ROHDE, Combined Control Techniques for Reactive Sputtering of Wear/Abrasion Resistant Tin, Cr2N, CrN and AlN Films on Compliant and/or Temperature Sensitive Substrates, Annual Technical Conference - Society of Vacuum Coaters, Boston, April 1998, Proceedings, p 147.

  • G. NEGREA, S.L. ROHDE, M.L. KURUPPU, G. VERMEŞAN, The influence of nitrogen flow and ion bombardment on the structure and chemical composition of chromium nitride thin films deposited at low temperature by reactive magnetron sputtering, Second International Conference on Materials and Manufacturing Technologies, “MATEHN '98”, 10-13 sept. 1998, Cluj-Napoca, Romania, Proceedings p.805.

  • D. NICA, V. IANCAU, G. VERMEŞAN, G. NEGREA, Some Aspects of Phase Constitution of Diffusion Layers Obtained by Austenitic Nitrocarburizing and Quenching from Eutectoid Transformation Temperature, The 11th Congress of the International Federation for Heat Treatment and Surface Engineering and the 4th ASM Heat Treatment and Surface Engineering Conference in Europe, Florence, Italy, 19-21 oct. 1998, Proceedings, vol. III, p.51.

  • G. NEGREA, G. VERMEŞAN, D. NICA, V. IANCĂU, Some observations on electron assisted chemical vapour deposition of diamond films on molybdenum, Acta Technica Napocensis, Section: Construction Machines, Materials, no. 39, 1996, p. 19.

  • V. IANCAU, D. NICA, G. NEGREA, Plasma nitriding and ferritic nitrocarburising of PM materials, Acta Technica Napocensis, Section: Construction Machines, Materials, no. 39, 1996, p. 9.

  • G. ARGHIR, I. MILEA, G. NEGREA, Analysis of thin diamond films by Raman spectroscopy and X-ray diffraction, First International Conference on Materials and Manufacturing Technologies, “MATEHN '94”, 18-20 mai 1994, Cluj-Napoca, Romania, Proceedings p. 429.

  • G. VERMESAN, G. NEGREA, Ingineria suprafeţelor – un nou concept în proiectarea şi fabricaţia de piese şi scule, Revista de Tratamente Termice si Ingineria Suprafetelor, no 2/1993, p. 7.

 

   
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