EFFECT OF TIME ON THE COMPOUND LAYER FORMED DURING SALT BATH NITRIDING OF AISI 4140 STEEL

Authors

  • Elhadj Ghelloudj
  • Mohamed Tahar Hannachi
  • Hamid Djebaili

DOI:

https://doi.org/10.12776/ams.v24i4.1111

Keywords:

Salt bath nitriding, AISI 4140 steel, compound layer, time

Abstract

This research was carried out to study the effect of time on the compound layer of AISI 4140 steel in salt bath nitriding. The nitriding process were implemented on AISI 4140 steel in salt bath component for different times (from 1 h to 10 h) at 580 °C. Samples of AISI 4140 steel were treated and characterized (at surface and core of samples) through the following technique: optical microscopy, scanning electron microscopy, X-ray diffraction (XRD) and microhardness tester. Shows that thick compound layers are formed during continuous salt bath nitriding. The thickness of the compound layer and surface hardness increases with increasing time.

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Published

2018-12-31

How to Cite

Ghelloudj, E. ., Hannachi, M. T., & Djebaili, H. (2018). EFFECT OF TIME ON THE COMPOUND LAYER FORMED DURING SALT BATH NITRIDING OF AISI 4140 STEEL. Acta Metallurgica Slovaca, 24(4), 280–286. https://doi.org/10.12776/ams.v24i4.1111