抄録
This paper proposes a computational modeling and simulation methodology to analyze the mechanism of Hydrogen Embrittlement of Aluminium alloy. The Hydrogen Embrittlement is the process especially by which high-strength Aluminimum alloy (7000 series), become brittle and fracture following exposure to hydrogen. The mechanism starts with lone hydrogen atoms diffusing through the metal. The Hydrogen Embrittlement is represented as a mechanism which starts with lone hydrogen atoms diffusing through the Aluminium alloy. When these hydrogen atoms re-combine in minuscule voids such as dislocation accumulation and grain boundary, the combined hydrogen atoms create high pressure from inside the cavity which they are in. A computational simulator is developed and succeed to simulate the forming process of the granular boundary, movement of dislocation, and fracture.
