Study of RV52 Steel Plates Properties after Thermic Treatment
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2009, Vol 32, Issue 2
Abstract
The thermal treatment of RV52 steel plates determines high mechanical properties such as: strength, wear resistance and tenacity. The normalized plate samples were studied to determine the effect of the tension release heat treatment on the properties of steel plates used for metallic welded construction. From the relations expressing the link between the strength and tenacity relation on one hand and the structural characteristics, on the other it is obvious that the only factor which leads both to increasing strength properties and decreasing transition temperature is the finishing of the ferrite grains.
Authors and Affiliations
Maria VLAD, Stela CONSTANTINESCU
Hydrodynamic Aspects on EAF’s Smelt Metallic Mirror
Using the Physical and Mathematical knowledge, a new approach to EAF bath’s hydrodynamic aspects is proposed to be developed in this paper. Experimental results and a mathematical equation package have been concluded tha...
Study of Thermodynamic Regime at the Continuous Casting of Steel
The paper presents the evolution of the heat exchange coefficient along the path of the continuous casting unit, as a function of the cooling water flow rate and the path length. The optimization of this thermodynamic re...
Studies and Researches Regarding the Obtaining and Characterization of Composite Nickel Coatings-Ni/Al2O3, Ni/Kaolin Electrochemically Produced
This study presents the composite nickel coatings electrochemically obtained using as disperse phases Al2O3 particles and kaolin. There were used Watts electrolytes, with a pH = 4, current density of 4 A/dm2 , a concentr...
Study on the Use of Oxygen-Enriched Combustion Air at the Ignition Initiator Furnace from the Agglomeration Machine
Comparative study on the use of oxygen-enriched combustion air at the homogenization coal ignition coil from Dwight-Lloyd agglomeration No 5 from the ArcelorMittal Galati metallurgic plant to reduce fuel consumption, inc...
Methods to Reduce Gas Emissions Onboard Ships
Regarding the latest IMO requirements, the EEDI (Energy Efficiency Design Index) is mandatory to be limited as levels under IMO MEPC requirements. The paper presents some paths to reduce EEDI as are applied onboard a 555...