Improvement of Surface Properties of Low Carbon Steel by Nitriding Treatment

• Authors: F. Benlahreche , E. Nouicer
• Languages of publication: EN

Abstracts

EN

This work aimed to improve the physicochemical properties of a low carbon steel C15 by a nitriding treatment in a salt bath at 580°C. The micrographs of treated sample show that the nitriding treatment causes significant structural changes, it is allowed to delineate the nitriding layer. The X-ray diffraction and the Raman spectroscopy of the treated samples permitted to identify different nitrides (Fe_{2-3}N, Fe₄N) formed. The obtained hardness profile determines the nitriding depth. Potentiodynamic curves show that the corrosion current density of treated C15 is the 10 times lower than untreated specimen. The values of impedance parameters obtained after nitriding treatment indicate that the resistance values and exponent n increase, whereas the capacitance decreases. We concluded that the nitriding treatment is an effective method for improvement of the corrosion behavior and surface properties of the low alloy steel C15.

Keywords

EN

81.65.Lp

Discipline

• 81.65.Lp: Surface hardening: nitridation, carburization, carbonitridation

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2017
• Volume: 131
• Issue: 1
• Pages: 20-23

Dates

published

2017-01

Contributors

author

F. Benlahreche

• Processes Engineering Faculty, Constantine3 University, Constantine 25000, Algeria

author

E. Nouicer

• Physics Department, Exact Sciences Faculty, Constantine1 University, Constantine 25000, Algeria

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Identifiers

DOI

10.12693/APhysPolA.131.20