Effect of carbon addition on the passivity of hypoeutectic high chromium cast irons. Issue 1 (22nd December 2022)

• Record Type: Journal Article
• Authors: Lee, Jun-Seob; Lee, Jun-Hyeong; Oh, Jun-Seok; Kang, Sung; Baek, Seung-Hoon; Ahn, Jee Hyuk; Han, Seung Zeon; Lee, Je-Hyun
• Is Part Of: RSC advances. Volume 13:Issue 1(2023)
• Page Start: 586
• Page End: 593
• Publication Date: 2022-12-22
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d2ra06902d
• Languages: English
• ISSNs: 2046-2069

Abstract

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. 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.