The effect of inhomogeneous microstructures on strength and stress . . . High-strength Al alloys are sensitive to stress corrosion cracking and hydrogen embrittlement that limit their applications Here the authors examine them at near-atomic scale using advanced microscopy and reveal hydrogen at dislocations and grain boundaries, and subsequent microstructural changes
The effect of inhomogeneous microstructures on strength and . . . The inhomogeneity of the microstructure of an Al-Cu-Li thick plate in the thickness direction results in inhomogeneity in the tensile property and fatigue crack propagation (FCP) rate The grain size gradually increases from the surface layer to the central layer