TEM analysis of the interfaces between the components in magnesium matrix composites reinforced with SiC particles

Spherical shape of γ-Mg17Al12 precipitates in AZ91 magnesium alloy processed by equal-channel angular pressing

“…For example, in the present case, the supersaturated solid solution exhibited higher than equilibrium solute atoms concentration, which could form atmospheres generating dislocation locking. It should also be noted that the deformation of hcp magnesium alloys caused the formation of twins, especially the {11 0 2} matrix {01 1 2} twin type [38,39]. In most published works [23][24][25]30,39] the microstructure of magnesium alloys processed by the ECAP technique was characterized by strong deformation and high density of dislocations and twins.…”

“…It should also be noted that the deformation of hcp magnesium alloys caused the formation of twins, especially the {11 0 2} matrix {01 1 2} twin type [38,39]. In most published works [23][24][25]30,39] the microstructure of magnesium alloys processed by the ECAP technique was characterized by strong deformation and high density of dislocations and twins. Introducing a high dislocation density and strong disordering of the matrix lattice during severe plastic deformation can preclude formation of a coherent boundary between the matrix and growing ␥ precipitates.…”

Microstructure and mechanical properties of GTA surface modified composite layer on magnesium alloy AZ31 with SiCP

“…Selection of reinforcement type and geometry/shape is critical to obtain the best optimum combination of good properties at a substantially low cost [13][14][15]. SiC ceramic particulate is a low density material that is very hard, strong and stiff.…”

Fabrication of B4C particulate reinforced magnesium matrix composite by powder metallurgy

“…Furthermore, the limitation of monolithic magnesium properties such as low elastic modulus, rapid loss of strength with increasing temperature and poor creep resistance has been improved by the addition of various types of reinforcements [5]. For example, non-continuous reinforcements such as Al 2 O 3 short fiber [6], SiC whisker [1,4], SiC [7] or TiC [8][9][10][11] particulate reinforced magnesium composites have been extensively studied by a number of researchers; however, little work has been carried out on B 4 C particulate reinforced magnesium MMCs [12]. B 4 C ceramic particulate is a low density material that is very hard, strong and stiff [13].…”