Evaluation of the Corrosion Behavior and Hardness of Glucose-Carburized Steel in Comparison with Fe2B Borided Layers

Autor: Stefanos Skolianos, G. A. Stergioudis, E.M. Pechlivani, Eleni Pavlidou, D.N. Tsipas
Rok vydání: 2013
Předmět:
Zdroj: Advanced Materials Research. 716:159-165
ISSN: 1662-8985
DOI: 10.4028/www.scientific.net/amr.716.159
Popis: The paper aims to compare the hardness and corrosion behavior of carburized and borided Iron-Based Austenitic Steels (IBAS) which were treated at the same temperature and time under vacuum conditions. Boronizing was performed by pack cementation in Ekabor II powder and carburization was carried out by annealing under vacuum conditions using glucose as a carburizing medium. Both boronizing and carburizing procedures were performed at 900°C for 3h. The characterization of the treated materials was assessed by using X-Ray Diffraction (XRD) analysis, optical observations, Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray Spectroscopy (EDS) measurements and micro-Vickers hardness tests. Potentiodynamic polarization curves were also used to determine electrochemical characteristics such as the corrosion potential (mV), corrosion current density (μΑ/cm2) and corrosion rate (μm/year). The results showed that borided samples with a single phase layer, exclusively Fe2B strongly toothed, exhibited better hardness behavior towards carburized samples but lesser corrosion resistance instead.
Databáze: OpenAIRE