New insights into hydrogen-assisted intergranular cracking in nickel

We characterize the grain boundary (GB) susceptibility to hydrogen-assisted intergranular cracking in pure nickel as a function of coincident site lattice value ( Σ -n), over a wide range of hydrogen concentrations (4 to 14 wppm). Cracks on the surface and within the bulk material were identified ac...

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Bibliographic Details

Published in:	Materials Science and Engineering A
Main Author:	Sangchu Quan
Other Authors:	A. Zafra, Emilio Martínez‐Pañeda, Chao Wu, Zachary D. Harris, Livia Cupertino-Malheiros
Format:	Article
Language:	English
Published:	Elsevier BV 2025
Subjects:	Hydrogen embrittlement and corrosion behaviors in metals Hydrogen Storage and Materials Fusion materials and technologies pure nickel grain boundaries coincidence site lattice hydrogen embrittlement cathodic charging hydrogen segregation fracture strain intergranular fracture surface cracks cohesive strength
Online Access:	https://doi.org/10.1016/j.msea.2025.149545
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