Zobrazeno 1 - 10
of 18
pro vyhledávání: '"L D Pirvulescu"'
Autor:
Sebastian Tiberiu Duma, L. D. Pirvulescu, Cornel Eusebiu Podoleanu, Lavinia Madalina Micu, Nicușor Alin Sîrbu, Iosif Lazar, Ion Mitelea, Ilare Bordeasu, Mihai Hluscu
Publikováno v:
Key Engineering Materials. 890:165-172
The paper presents the results of the research on the vibration cavitation erosion of the CuSn12-C bronze, subjected to the volumetric heat treatment of quenching to 700 °C, with water cooling, followed by tempering to 250 °C, with slow cooling in
Autor:
I Bordeasu, Ostoia Daniel, Mihai Hluscu, Octavian Victor Oancă, R. Badarau, L. D. Pirvulescu, Nicușor Alin Sîrbu, Salcianu Cornelia Laura
Publikováno v:
Advanced Materials Research. 1157:52-57
Among the uses of stainless steel GX5CrNi18-10 one mentions the hydraulic machine blades and the rotors, which are highly susceptible to cavitation. To achieve a long life service under cavitation conditions, the pieces made of this steel are subject
Autor:
Ilare Bordeasu, Mihai Hluscu, Adrian Circiumaru, Iosif Lazar, Lavinia Madalina Micu, L. D. Pirvulescu
Publikováno v:
Scopus-Elsevier
Due to mechanical resistance characteristics, chemical corrosion and abrasive erosion resistance, the polymers are more widely used in equipments and installations that are exploited in different fluid hydrodynamic conditions. Among these application
Publikováno v:
Journal of Physics: Conference Series. 1781:012005
CuSn bronze alloys are some of the most used in the casting of freshwater ship propellers. Through in-depth heat treatments, the microstructure and hardness are substantially altered when compared with the initial state of the material after casting.
Publikováno v:
Journal of Physics: Conference Series. 1781:012004
The paper highlights the behavior at the vibratory cavitation erosion of CuZn39Pb3 brass microstructures, as obtained by in-depth heat treatments. Two heat treatment cycles are analysed (hardening at 800ºC, followed by cooling in water, and hardenin
Autor:
Iosif Lazar, I Bordeasu, R. Badarau, Gabriel Mălaimare, L. D. Pirvulescu, C. L. Salcianu, M O Popoviciu, Mihai Hluscu
Publikováno v:
Journal of Physics: Conference Series. 1426:012015
Among the materials, often used in manufacturing details subjected to cavitation erosion, such as pump impellers, propellers, fittings, valves body, etc. there are also CuZnPb brasses. Their use in molded or laminated condition, for pieces subjected
Autor:
Marcela Sava, M O Popoviciu, S T Duma, Mihai Hluscu, C. E. Podoleanu, Ilare Bordeasu, L. D. Pirvulescu, Iosif Lazar
Publikováno v:
Journal of Physics: Conference Series. 1426:012014
The bronze CuSn is used sometimes for equipment components working in cavitation conditions, as for example ship propellers, bodies and other parts of valves. To increase the working time, in cavitation conditions, those elements can be subjected to
Autor:
Iosif Lazar, M O Popoviciu, Lavinia Madalina Micu, Ion Mitelea, Marcela Sava, L. D. Pirvulescu, Corneliu Marius Crăciunescu, Ilare Bordeasu
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 477:012002
Autor:
L. D. Pirvulescu, Lavinia Madalina Micu, T. Bena, Ilare Bordeasu, Cristian Ghera, M O Popoviciu
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 294:012020
Autor:
Lavinia Madalina Micu, A Iosif, M O Popoviciu, C. E. Podoleanu, L. D. Pirvulescu, L C Salcianu, R. Badarau, I Bordeasu, C Ghera
Publikováno v:
IOP Conference Series: Materials Science and Engineering. 163:012002
In present, the ranking of materials as their resistance to cavitation erosion is obtained by using laboratory tests finalized with the characteristic curves mean depth erosion against time MDE(t) and mean depth erosion rate against time MDER(t). In