An experimental approach for estimating the effect of heat affected zone (HAZ) microstructural gradient on fatigue crack growth rate in aluminum alloy FSW

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 691; pp. 110 - 120
• Main Authors: Kermanidis, A.T., Tzamtzis, A.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 13.04.2017; Elsevier BV
• Subjects: Aging (metallurgy); Aluminum alloy; Aluminum alloys; Crack propagation; Fatigue crack growth; Fatigue failure; Fatigue tests; Fracture mechanics; Friction stir weld; Friction stir welding; Heat affected zone; Microhardness; Microstructural gradient; Microstructure; Residual stress; Simulation; Stress propagation; Welded joints; Fatigue crack growth; Friction stir weld; Heat affected zone; Microstructural gradient; Microhardness; Aluminum alloy

The microstructural gradient of the heat affected zone (HAZ) in aluminum alloy FSW has been simulated experimentally by subjecting the parent alloy to a controlled aging process. The purpose of the simulation is to estimate the effect of the HAZ microstructural gradient on fatigue crack propagation...