STUDY OF PULSE ON PULSED NANOCRYSTALLINE PLASMA ELECTROLYTIC CARBONITRIDING ON THE NANOSTRUCTURE OF COMPOUND LAYER

Mahmood Aliofkhazraei, Shahrokh Ahangarani and Alireza Sabour Rouhaghdam ()
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Mahmood Aliofkhazraei: Faculty of Engineering, Materials Engineering Department, Tarbiat Modares University, PO Box 14115-143, Tehran, Iran
Shahrokh Ahangarani: Advanced Materials and Renewal Energies Department, Iranian Research Organization for Science and Technology, Iran
Alireza Sabour Rouhaghdam: Faculty of Engineering, Materials Engineering Department, Tarbiat Modares University, PO Box 14115-143, Tehran, Iran

Surface Review and Letters (SRL), 2008, vol. 15, issue 04, 427-434

Abstract: Surface hardening of commercially pure titanium by using pulse on pulsed nanocrystalline plasma electrolytic carbonitriding has been studied in this investigation. Coating process has been performed on Triethanolamine-based electrolyte by cooling bath. Nanostructure of obtained compound layer was examined with figure analysis of SEM nanographs. The effects of process variables, i.e., Triethanolamine concentration, electrical conductivity of electrolyte, applied voltage, and treatment time, have been experimentally studied. Statistical methods were used to achieve the optimum size of nanocrystals. Finally the contribution percentage of effective factors of pulsed current was revealed and confirmation run show the validity of obtained results.

Keywords: Pulse on pulse method; nanocrystalline; nanostructure; pulsed nanocrystalline plasma electrolytic carbonitriding (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1142/S0218625X0801155X

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