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Wyszukujesz frazę "magnetoelectropolishing" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Magnetic Fields for Electropolishing Improvement: Materials and Systems
Autorzy:
Hryniewicz, Tadeusz
Rokosz, Krzysztof
Rokicki, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/411721.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Magnetic field
Magnetoelectropolishing MEP
Materials
Electrochemical systems
Opis:
The paper aims to present the main objectives for using magnetic fields to improve process of electropolishing (EP), firstly by focusing on materials and electrochemical systems. The general introduction has been concerned on the sample surface treated under pseudopassivity conditions, in the process generally known as magnetoelectropolishing (MEP). Long-term up-to-date experiments have shown profound changes observed on metals and alloys. The advantageous effects gained by applying MEP to metals and alloys cover: improvement of corrosion resistance, bio- and haemocompatibility, roughness by modification of their surfaces. The improvements are also referred to the mechanical properties of metals and alloys treated by MEP namely: removal of hydrogen, fatigue resistance enhancement, etc. Further developments and the effects of magnetic fields on electropolishing of metals and alloys are to be presented in the next publications.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 4; 98-108
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
XPS Analysis of nanolayers obtained on AISI 316L SS after Magnetoelectropolishing
Autorzy:
Rokosz, Krzysztof
Hryniewicz, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/1192093.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
XPS Analysis
Magnetoelectropolishing (MEP)
AISI 316L SS
Nanolayers
Opis:
In the present paper, the passive layers' chemical compositions of AISI 316L austenitic stainless steel samples after three treatments, such as mechanical/abrasive polishing (MP), standard electropolishing (EP) and magnetoelectropolishing (MEP) are displayed. For the surface studies after each treatment, XPS analysis was performed. It has been noted that after MP treatment the Cr/Fe ratio in the passive layer is the lowest and equals to about 1, whereas after the MEP it is close to 3. Additionally, it has to be reported that the passive layers after MP consist mainly of Cr2O3 and Fe2O3, after a standard EP treatment – of CrOOH and FeOOH, and after MEP – of Cr(OH)3 and FeOOH compounds. Concerning the surface layer compositions, in the passive layer formed after MP the detected iron consisted partly of Fe0 (46.5 at %) and partly of iron compounds Fe2+ and Fe3+ (53.5 at %), whereas the detected chromium consisted of Cr0 (16.5 at %) and mostly of chromium compounds Cr3+ (80.8 at%), with a small amount of Cr6+ (2.7 at %). In case of the nanolayer after EP treatment, the detected iron consisted of Fe0 (39.5 at %) and iron compounds Fe2+ and Fe3+ (60.5 at %), whereas the detected chromium consisted in a small amount of Cr0 (6.6 at %), and mostly chromium compounds Cr3+ (83.8 at %) with some Cr6+ (9.6 at %). The XPS analysis of nanolayer formed on AISI 316L after MEP indicates that the detected iron consisted partly of Fe0 (27.1 at %) and mostly of iron compounds Fe2+ and Fe3+ (72.9 at %) whereas the detected chromium contained Cr0 (18 at %) and chromium compounds of Cr3+ (76 at %) and Cr6+ (6 at %).
Źródło:
World Scientific News; 2016, 37; 232-248
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the biological response of austenitic stainless steels after electrochemical -EP and MEP- polishing
Autorzy:
Hryniewicz, Tadeusz
Lewicka-Rataj, Katarzyna
Rokosz, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1179275.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
austenitic stainless steels
bacteria Escherichia coli
electrochemical polishing
electropolishing EP
magnetoelectropolishing MEP
statistical approach
water contamination
Opis:
The austenitic cold-rolled AISI 316L stainless steel was used for the studies. Corrosion resistance measurements were performed on the samples after three types of treatments: abrasive finishing (MP), standard electropolishing (EP), and magnetoelectropolishing (MEP). They were carried out in Ringer's solution at a room temperature, indicating a considerable difference in the breaking potential Epit values, dependent on surface treatment. Two groups of samples, those after EP and MEP, were submerged in broth culture wild strain of Escherichia coli from contaminated river water. Images of the steel samples submerged for 2 and 4 hours are displayed in the paper. A statistical approach has been performed. In each case the number of bacteria deposited on the MEP steel samples was higher in comparison with that one noticed on EP samples, increasing much faster with time on the MEP ones.
Źródło:
World Scientific News; 2017, 80; 284-296
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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