Hydrogen-assisted fatigue crack-propagation in a Ni-based superalloy 718, revealed via crack-path crystallography and deformation microstructures
Yuhei Ogawa, Osamu Takakuwa, Saburo Okazaki, Yusuke Funakoshi, Saburo MATSUOKA, Hisao Matsunaga
Topics & Concepts
Materials scienceGrain boundarySuperalloyHydrogenIntergranular corrosionMicrostructureIntergranular fractureLüders bandCrackingMetallurgyCrystal twinningHydrogen embrittlementSlip (aerodynamics)Fracture mechanicsComposite materialCorrosionPhysicsChemistryOrganic chemistryThermodynamicsHydrogen embrittlement and corrosion behaviors in metalsHigh Temperature Alloys and CreepNuclear Materials and Properties