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Improvement in Nano-hardness and Corrosion Resistance of of XC48 Samples by Plasma Immersion Ion Implantation

Auteurs : M. M. ALIM, N. Saoula, R. TADJINE, A. Keffous, M. Kechouane
Année : 2016
Domaine : Sciences des matériaux
Type : Communication
Conférence: 7th African Conference on Non Destructive Testing ACNDT 2016 & the 5th International Conference on NDT and Materials Industry and Alloys (IC-WNDT-MI)
Résumé en PDF : (résumé en pdf)
Fulltext en PDF : (.pdf)
Mots clés : Plasma nitriding, Low Carbon Steel, Nanohardness, corrosion resistance, Negative DC bias voltage

Résumé :

In this work, Nitrogen Plasma Immersion Ion Implantation (PIII) treatment of (XC48) Carbon steel was performed in a vacuum chamber with an inductive RF source (l3.56 MHz) at low pressure in order to investigate the influence of the process conditions on the corrosion properties of this studied material. The X-rays diffraction analysis revealed the presence of several nitride phases (Fe3N and FeN) formed onto implanted samples. The mechanical characterization of the processed samples showed an increase of 450 % in the nanohardness.A low corrosion rate is obtained denoting an improvement in the corrosion resistance behavior. These results are particularly interesting since they were obtained for relatively low bias voltages and processing time.