Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Elena DRUGESCU"'
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 39, Iss 2 (2016)
The main purpose of this industrial experimental rolling, done in ArcelorMittal Galati in the Heavy Plate Mill is to check the correlation between mechanical properties and the microstructure of chemical compositions used in trial in order to reach t
Externí odkaz:
https://doaj.org/article/b3bcd9f2c0a14caba62504b4aa3e0de3
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 39, Iss 2 (2016)
Thermomechanical rolling (TMR or TMCP) is a special rolling process resulting in an extremely high-strength, fine-grained substructure which simultaneously offers very good toughness and cold formability. TM products have much lower carbon content an
Externí odkaz:
https://doaj.org/article/05b1ea73f571490da2ead6ded5fc5a2a
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 37, Iss 2 (2014)
In this paper is studied the influence of wear behavior of carburizing in fluidized-bed on sintered alloys produced by powder metallurgy route. In powder metallurgy, carburization is a thermochemically treatment that occurs in the temperature range o
Externí odkaz:
https://doaj.org/article/99f103e0edce47efa1d471e9b87a9f6f
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 35, Iss 4 (2012)
This paper is a study of the influence of fluidized bed carburizing of sintered steels on the mechanical properties and the abrasive wear behavior for two different types of powder. Carburizing was carried out at a temperature of 900 °C and maintain
Externí odkaz:
https://doaj.org/article/2041b87cd7f64de09dd1215a40de90fb
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 35, Iss 2 (2012)
In this paper is a study of the influence of steam treatment on sintered P/M steels, for three different types of powder. The abrasive wear of steam-treated sintered iron is analysed by abrasion tests. The specimens were produced from atomised iron p
Externí odkaz:
https://doaj.org/article/63d5d3f936f240868aaf0b2e1bc93b49
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 34, Iss 3 (2011)
In this paper is studied the influence of fluidized bed carburizing of sintered steels, for three different types of powder. Carburization is one of the most popular variety of temochemical treatment. Usually, carburization occurs in the temperature
Externí odkaz:
https://doaj.org/article/cd475f063f964684bc73a299abe5e92a
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 34, Iss 2 (2011)
The paper presents the results of a research on the behavior at artificial aging heat treatment carried out on three different chemical compositions of the alloys belonging to Al-Zn system. We studied the behavior of the three alloys after applying m
Externí odkaz:
https://doaj.org/article/544e57f888b24725be96f22c5bf3200a
Autor:
Simona BOICIUC, Elena DRUGESCU
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 33, Iss 4 (2010)
The paper presents the wear behaviour on a rotating disk which carried abrasive paper of laser cladding layers with high-speed steel powder type HS6-5-2 - M2 compared to steel samples of the same quality but heat treated in volume. To see how tempera
Externí odkaz:
https://doaj.org/article/f0a464d54ed841d28e003719250471da
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 32, Iss 1 (2009)
Multilayer cladding by injection of powder with 8.9% Cr, 4.5% Fe, 5.1% B, 2.4% Al, 0.6% Cu, Ni rest as chemical composition, in melted bath by a continuous wave CO2laser connected to x-y-z coordinate table was tested in order to increase the wear and
Externí odkaz:
https://doaj.org/article/774e87cb15074b868145c9eab476b072
Publikováno v:
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 32, Iss 1 (2009)
To increase the resistance to wear and corrosion of the surface layers made from steel with 0.45% C, multilayer deposition was tested by injection of powder with chemical composition of 8.9% Cr, 4.5% Fe, 5.1% B, 2, 4% Al, 0.6% Al; the remaining Ni, w
Externí odkaz:
https://doaj.org/article/a75a64cc9ef441b2b6f3c847d4244767