Evaluation of pulse current integrated CRTD-Bor for boron diffusion in low carbon steel

Mehtap Arslan; Oguz Kagan Coskun; Mehran Karimzadehkhoei; Guldem Kartal Sireli; Servet Timur

doi:10.1016/j.matlet.2021.131299

Evaluation of pulse current integrated CRTD-Bor for boron diffusion in low carbon steel

Mehtap Arslan, Oguz Kagan Coskun, Mehran Karimzadehkhoei, Guldem Kartal Sireli^*, Servet Timur

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

This study involves the boriding of low carbon steel via novel integrated pulse current application in CRTD-Bor-molten salt electrolysis. The effects of process temperatures (950, 1000, and 1050 °C) and times (5, 10 and 30 min) were investigated at the constant current density of 200 mA/cm² and the duty cycle of 1/4 (t_on = 1 sec, t_off = 3 sec). The pulsed-borided specimens produced at the optimized parameters (i.e. 1000 °C and 30 min) had the surface hardness of 1800 ± 100 HV with the perfect adhesion to the substrate (HF1). Besides, the activation energy of this combined process was calculated as 38.8 kJ/mol which is nearly 36.7 % lower than the reported values in literature.

Original language	English
Article number	131299
Journal	Materials Letters
Volume	308
DOIs	https://doi.org/10.1016/j.matlet.2021.131299
Publication status	Published - 1 Feb 2022

Bibliographical note

Publisher Copyright:
© 2021 Elsevier B.V.

Funding

This work was supported by Istanbul Technical University - General Research Project with the project number of MGA-2020-42588.

Funders	Funder number
Istanbul Teknik Üniversitesi	MGA-2020-42588

Keywords

Boriding
CRTD-Bor
Diffusion
Electrodeposition
Pulse current

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10.1016/j.matlet.2021.131299

Cite this

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title = "Evaluation of pulse current integrated CRTD-Bor for boron diffusion in low carbon steel",

abstract = "This study involves the boriding of low carbon steel via novel integrated pulse current application in CRTD-Bor-molten salt electrolysis. The effects of process temperatures (950, 1000, and 1050 °C) and times (5, 10 and 30 min) were investigated at the constant current density of 200 mA/cm2 and the duty cycle of 1/4 (ton = 1 sec, toff = 3 sec). The pulsed-borided specimens produced at the optimized parameters (i.e. 1000 °C and 30 min) had the surface hardness of 1800 ± 100 HV with the perfect adhesion to the substrate (HF1). Besides, the activation energy of this combined process was calculated as 38.8 kJ/mol which is nearly 36.7 % lower than the reported values in literature.",

keywords = "Boriding, CRTD-Bor, Diffusion, Electrodeposition, Pulse current",

author = "Mehtap Arslan and Coskun, {Oguz Kagan} and Mehran Karimzadehkhoei and {Kartal Sireli}, Guldem and Servet Timur",

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AU - Arslan, Mehtap

AU - Coskun, Oguz Kagan

AU - Karimzadehkhoei, Mehran

AU - Kartal Sireli, Guldem

AU - Timur, Servet

PY - 2022/2/1

Y1 - 2022/2/1

N2 - This study involves the boriding of low carbon steel via novel integrated pulse current application in CRTD-Bor-molten salt electrolysis. The effects of process temperatures (950, 1000, and 1050 °C) and times (5, 10 and 30 min) were investigated at the constant current density of 200 mA/cm2 and the duty cycle of 1/4 (ton = 1 sec, toff = 3 sec). The pulsed-borided specimens produced at the optimized parameters (i.e. 1000 °C and 30 min) had the surface hardness of 1800 ± 100 HV with the perfect adhesion to the substrate (HF1). Besides, the activation energy of this combined process was calculated as 38.8 kJ/mol which is nearly 36.7 % lower than the reported values in literature.

AB - This study involves the boriding of low carbon steel via novel integrated pulse current application in CRTD-Bor-molten salt electrolysis. The effects of process temperatures (950, 1000, and 1050 °C) and times (5, 10 and 30 min) were investigated at the constant current density of 200 mA/cm2 and the duty cycle of 1/4 (ton = 1 sec, toff = 3 sec). The pulsed-borided specimens produced at the optimized parameters (i.e. 1000 °C and 30 min) had the surface hardness of 1800 ± 100 HV with the perfect adhesion to the substrate (HF1). Besides, the activation energy of this combined process was calculated as 38.8 kJ/mol which is nearly 36.7 % lower than the reported values in literature.

KW - Boriding

KW - CRTD-Bor

KW - Diffusion

KW - Electrodeposition

KW - Pulse current

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Evaluation of pulse current integrated CRTD-Bor for boron diffusion in low carbon steel

Abstract

Bibliographical note

Funding

Keywords

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