Effects of process current density and temperature on electrochemical boriding of steel in molten salts

G. Kartal*, S. Timur, C. Arslan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

In this study, the effects of current density and bath temperature on the hardness, thickness, and morphology of boride layer are systematically investigated. The electrochemical boride coating on steel substrates is carried out at various current densities (50-700 mA/cm2) and bath temperatures (800-1000°C) at constant electrolyte composition and electrolysis time. The FeB, Fe2B, and Fe3B phases are detected by the x-ray diffraction method. The hardness of the boride layer reaches approximately 1800 HV on the surface and gradually decreases toward the matrix. The optimum current density and electrolyte temperature for the boriding of low-alloy steel are determined as 200 mA/cm2 and 900°C, respectively.

Original languageEnglish
Pages (from-to)1538-1542
Number of pages5
JournalJournal of Electronic Materials
Volume34
Issue number12
DOIs
Publication statusPublished - Dec 2005

Funding

The authors are pleased to acknowledge the support given by The State Planning Organization of Turkey, through the Advanced Technologies in Engineering project at Istanbul Technical University.

FundersFunder number
State Planning Organization of Turkey
Istanbul Teknik Üniversitesi

    Keywords

    • Bath temperature
    • Boriding
    • Current density
    • Molten salt electrolysis

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