Effect of the extrusion conditions on microstructure evolution of the extruded Al–Mg–Si–Cu alloy rods

Residual-stress-induced grain growth of twinned grains and its effect on formability of magnesium alloy sheet at room temperature

“…Since the curvature of the boundary, which is proportional to the velocity of a grain boundary [17], was almost zero in the flat boundaries such as twin boundaries, it was necessary to investigate the driving force for growth of the twinned grains. Previous studies [14,[18][19][20] reported significant grain growth in the surface region of extruded materials after annealing and revealed that strain gradient caused by frictional shear deformation could induce the peripheral grain growth. To reveal the effect of frictional stress caused by the vertical load on the grain growth in this study, two specimens were machined from a hot-rolled magnesium alloy plate with strong basal texture; they were compressed along the TD using a tension-compression machine, which applies constraint through vertical load perpendicular to the loading direction inducing frictional stress, and a Gleeble thermalmechanical simulator, which applies free surface perpendicular to the loading direction.…”

Effect of extrusion ratio on the wear behaviour of Al–Si and Al–Mg alloys

“…Such a result reveals that the grain structure of the materials undergo a change during the extrusion process. The grain size varies in terms of the extrusion ratio and also re-crystallisation may occur within the structure due to the processing temperature [21,25,30].…”

Evaluation of Copper-Based Alloy (C93200) Composites Reinforced with Marble Dust Developed by Stir Casting under Vacuum Environment

“…Numerous advanced engineering materials have been developed during the past few decades. Due to superior physical, mechanical, and tribological properties, metal composite has also been considered as a class of advanced engineering material, and it is being used for high-performance applications such as those in aerospace and automobile industries [2,3].…”