Study of the relationship between intergranular stress corrosion cracking and grain boundary characteristics in brass

Lin Chen; Yanjun Chen; Huisheng Yang; Yanjing Su; Lijie Qiao

Electrochemistry Communications (Oct 2021)

Study of the relationship between intergranular stress corrosion cracking and grain boundary characteristics in brass

Lin Chen,
Yanjun Chen,
Huisheng Yang,
Yanjing Su,
Lijie Qiao

Affiliations

Lin Chen: Beijing Advanced Innovation Center for Materials Genome Engineering, Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China
Yanjun Chen: Beijing Advanced Innovation Center for Materials Genome Engineering, Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China
Huisheng Yang: Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China; Corresponding authors.
Yanjing Su: Beijing Advanced Innovation Center for Materials Genome Engineering, Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China; Corresponding authors.
Lijie Qiao: Beijing Advanced Innovation Center for Materials Genome Engineering, Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China

Journal volume & issue: Vol. 131
p. 107124

Abstract

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The purpose of this study is to investigate the correlation between intergranular stress corrosion cracking (IGSCC) and grain boundary characteristics in brass. The Volta potential and nature of the grain boundaries in H62 brass were studied by scanning Kelvin probe force microscopy and Electron Backscattered Diffraction, respectively. The α/β phase boundaries and random grain boundaries with low work functions can act as anodic areas to promote IGSCC propagation. Moreover, due to a combination of the inherent characteristics and high work function of Σ3 annealing twin boundaries (ATBs), IGSCC is successfully halted at a triple junction containing Σ3 ATB.

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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