Characterisation of hydrogen trapping in steel by atom probe tomography

Thesis

Hydrogen embrittlement (HE), which results in an unpredictable failure of metals, has been a major limitation in the design of critical components for a wide range of engineering applications, given the near-ubiquitous presence of hydrogen in their service environments. However, the exact mechanisms that underpin HE failure remain poorly understood. It is known that hydrogen, when free to diffuse in these materials, can tend to concentrate at a crack tip front. In turn, this facilitates cr...

Expand abstract

Authors: Chen, Y

• DOI: 10.5287/ora-r59egqyxd
• Type of award: DPhil
• Level of award: Doctoral
• Awarding institution: University of Oxford
• Language: English
• Keywords: Hydrogen Embrittlement; Hydrogen Trapping; Atom Probe Tomography
• Subjects: Materials; Microscopy