Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Ruxandra Elena Dumitrescu"'
Autor:
Mircea Cristian Pantilimon, Andrei Constantin Berbecaru, Ioana Arina Gherghescu, George Coman, Sorin Ciucă, Andrei Grecu, Mirela Gabriela Sohaciu, Ruxandra Elena Dumitrescu, Cristian Predescu
Publikováno v:
Metals, Vol 12, Iss 3, p 443 (2022)
This paper presents a comparison between four TRIP steels, which belong to two groups with different chemical compositions. The first group is that of steels with a relatively low contents of Mn (1.5–2%), high Al (1–2%) and about 0.2% C, and the
Externí odkaz:
https://doaj.org/article/464dda50ae9e4b9685fd1adc3bf2ef1a
Autor:
Ruxandra Elena Dumitrescu, Sorin Ciuca, Ion Mihai Vasile, Mariana Ciurdas, Daniela Alina Necsulescu, Ioana Arina Gherghescu
Publikováno v:
Revista de Chimie. 70:2903-2907
Two magnesium matrix composites reinforced with 3 and 10% Ni-Ti particulates, respectively, were obtained by plasma sintering. The reinforcement material was obtained by grinding a mixture of powders of 68% Ni and 32% Ti atomic percent in a high ener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3eecd0bd1fcad5f2836c1d7269358575
https://doi.org/10.37358/rc.19.8.7453
https://doi.org/10.37358/rc.19.8.7453
Autor:
Ruxandra Elena Dumitrescu, Sorin Ciuca, Mirela Sohaciu, Cristian Predescu, Ecaterina Matei, George Coman, Ioana Arina Gherghescu, Andrei Berbecaru, Andra Mihaela Predescu
Publikováno v:
Revista de Chimie. 70:2491-2496
The paper presents corrosion resistance testing results of three stainless steels that may be used in hydropower turbine blades manufacture. Two of these have a chemical composition close to that of some other stainless steels previously employed in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb0afcacbe7afe181e44b32ad4accd72
https://doi.org/10.37358/rc.19.7.7367
https://doi.org/10.37358/rc.19.7.7367
Autor:
Catalin Stefan Gradinaru, Ioana Arina Gherghescu, George Coman, Mirela Sohaciu, Andrei Berbecaru, Cristian Predescu, Sorin Ciuca, Ruxandra Elena Dumitrescu
Publikováno v:
Revista de Chimie. 70:1132-1139
The paper presents microstructural features of three stainless steels utilized in making hydropower turbine parts. Two of these steels were already used in producing these parts, the third one is newly conceived. Aiming better mechanical and corrosio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::042858faf44581ff64131c981e3aaed7
https://doi.org/10.37358/rc.19.4.7078
https://doi.org/10.37358/rc.19.4.7078
Autor:
Ruxandra Elena Dumitrescu, Magdalena Galatanu, George Ruiu, Mariana Ciurdas, Vasile Ion, Cristian Pantilimon, Daniela Alina Necsulescu
Publikováno v:
Revista de Chimie. 69:3503-3507
Two mixtures of elemental nickel and titanium powders in atomic proportions of 50% Ni + 50% Ti and 32% Ni + 68% Ti, respectively, were ground for 40 hours in a high energy planetary mill. In the case of the first mixture, the mechanical alloying was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87ff1c6c0f5fdf221fbb54f3b3ef5dcb
https://doi.org/10.37358/rc.18.12.6779
https://doi.org/10.37358/rc.18.12.6779
Autor:
Ioana Arina Gherghescu, Cosmin Mihai Cotrut, Alina Daniela Necsulescu, Mariana Ciurdas, Sorin Ciuca, Ruxandra Elena Dumitrescu
Publikováno v:
Revista de Chimie. 69:1055-1059
Aluminium bronzes are exhibiting good corrosion resistance in saline environments combined with high mechanical properties. Their corrosion resistance is obviously confered by the alloy chemical composition, but it can also be improved by heat treatm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f82b31507ad007b4bb08c504fcc13e79
https://doi.org/10.37358/rc.18.5.6260
https://doi.org/10.37358/rc.18.5.6260
Publikováno v:
Revista de Chimie. 69:86-90
This paper presents some electrochemical impedance spectroscopy research results concerning the corrosion resistance of a shape memory Ni50Ti48Nb2 alloy. This one was previously studied by SEM and DSC [1,2] but some new research features had to be ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b0596ef0e33996776e4cf43c1dc63a9
https://doi.org/10.37358/rc.18.1.6049
https://doi.org/10.37358/rc.18.1.6049
Autor:
Sorin Ciuca, Ioana Arina Gherghescu, Mihai Branzei, Ruxandra Elena Dumitrescu, Gabriela Liliana Jicmon
Publikováno v:
Revista de Chimie. 68:991-996
The alloy was chosen in order to obtain a shape memory alloy having a wider hysteresis than equiatomic NiTi, that involves a better thermo-mechanical stability. Two samples investigated by differential scanning calorimetry (DSC) were previously annea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::030630dc2a862fc850110cb1ad625ae8
https://doi.org/10.37358/rc.17.5.5596
https://doi.org/10.37358/rc.17.5.5596
Publikováno v:
Advanced Materials Research. 1114:214-218
The present paper shows the experimental results obtained on two complex alloys Co-Cr-W-C-Fe-Ni-Si-Mn-Mo and Ni-Cr-Fe-B-Si-C-Co alloys deposited on copper support by welding (TIG). Well - known for their excellent abrasive wear, corrosion and high te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f62a77500fa04e1303a8d73aa77e9d8
https://doi.org/10.4028/www.scientific.net/amr.1114.214
https://doi.org/10.4028/www.scientific.net/amr.1114.214