Issue 1, 2023
From the journal:

RSC Advances

Effect of carbon addition on the passivity of hypoeutectic high chromium cast irons

Jun-Seob Lee, ORCID logo *ab   Jun-Hyeong Lee,b   Jun-Seok Oh,ac   Sung Kang,d   Seung-Hoon Baek,d   Jee Hyuk Ahn,e   Seung Zeon Hane  and  Je-Hyun Leeab  

* Corresponding authors

a School of Materials Science and Engineering, Changwon National University, 51140 Changwondaehak-ro, Changwon, South Korea
E-mail: junseoblee@changwon.ac.kr

b Department of Materials Convergence and System Engineering, Changwon National University, 51140 Changwondaehak-ro, Changwon, South Korea

c i-Casting Tech Ltd., Gomo-ro, Gimhae, South Korea

d Research Institute of Industry Science & Technology, Cheongam-ro, Pohang, South Korea

e Korea Institute of Materials Science, Chagwondea-ro, Changwon, South Korea

Abstract

The effect of adding C on the passivity of hypoeutectic high chromium cast iron (HCCI) was investigated in a pH 8.4 boric–borate buffer solution. The microstructure of HCCI is composed of austenite and carbide phases, whose fractions and chemical compositions are influenced by the amount of C added. Electrochemical and surface analyses revealed that the addition of C in the HCCI increased the defect densities in the n-type and p-type semiconductive oxide layers on the austenite and carbide phases, respectively.

Graphical abstract: Effect of carbon addition on the passivity of hypoeutectic high chromium cast irons

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Article information

DOI
https://doi.org/10.1039/D2RA06902D
Article type
Paper
Submitted
01 Nov 2022
Accepted
16 Dec 2022
First published
22 Dec 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 586-593

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Effect of carbon addition on the passivity of hypoeutectic high chromium cast irons

J. Lee, J. Lee, J. Oh, S. Kang, S. Baek, J. H. Ahn, S. Z. Han and J. Lee, RSC Adv., 2023, 13, 586 DOI: 10.1039/D2RA06902D

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