Căutare după Autor "1e20c18e-cbdc-4112-939f-c994a4d1ccb6"
Afișează articolele 1-6 of 6
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Behavior of Welded Joints from Some Stainless Austenite Steel Eypes During Nitriding Process
Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2006)Researches made on welded and nitrided samples from stainless austenite steel types show that nitriding thermo chemical treatment can be applied also for welded joints. As a result of the treatment, a diffusion layer ... -
Behaviour at Nitriding in Fluidized Layer of Austenitic Stainless Steels at the Temperature of 450°C
Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2007)Stainless austenitic steels have a good corrosion resistance but reduced abrasion strength due to low strength below 200HV5. By nitriding one may ensure the obtaining of a superficial layer with increased strength that ... -
Cladding by Welding with Hard Alloys
Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2009)The paper presents the results of a research on the role of cladding by welding support of continuous casting plant. Emphasizing that plating leads to outer layer the study presents a complex of properties favorable for ... -
Coating of the Lasting Moulds with Hard Alloys
Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2010)This paper presents the researches on the welded coating of lasting moulds used for casting at high melting temperatures. It shows that the coating through the flux welding with the addition of metal powders and graphite ... -
Influence of the Chemical Composition on the Behavior of Austenitic Stainless Steel in Fliid Layer Nitriding Process
Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galaţi, 2008)The main factors that influence the stainless steel behavior to the nitriding process are: chemical composition, nitriding temperature, treatment time. Researches have revealed that, with low temperature nitriding, the ... -
Method of Deternining the Main Features of Magnetic Ferromagnetic Materials
Gheorghieș, Livia; Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2012)The purpose of this paper is to present a method for determining the main magnetic features such as magnetic induction B, magnetization M, the coercive magnetic field Hc, permeability μ, using hysteresis cycle chart. The ...