Materials Science
氢脆
Hydrogen EmbrittlementA phenomenon where a metal or alloy becomes brittle due to the absorption of hydrogen atoms, leading to catastrophic failure under stress. / 一种金属或合金因吸收氢原子而变脆的现象，导致其在应力下发生灾难性失效。
- Knowledge type
- 自然理论
- First proposed or discovered
- Proposer
- Turkey Farm member
- Creator
- 农场主
- Last updated
- 2026-10-23 12:00:37
Sub-knowledge points
Grain boundary decohesionHydrogen-enhanced localized plasticityStress corrosion cracking
Higher-order knowledge points
Corrosion scienceFracture mechanicsMetallurgy
Main parameters and performance indicators
Hydrogen concentration: Critical threshold for embrittlementStress state: Tensile stress accelerates crack propagationMicrostructure: Grain boundaries and martensitic phases are susceptible sites
Open problems
Quantitative prediction of critical hydrogen concentrationReal-time monitoring of hydrogen uptake in service
Related literature
ranked by community starsResidual nitrogen aggravating hydrogen embrittlement via boron grain-boundary depletion in press-hardened martensitic steelOpen source
Related products and links
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Creation and modification trail
1 recordsRecord title: Hydrogen Embrittlement.
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