Effects of Si on deformation behavior and cavitation of coarse-grained Al–4.5Mg alloys exhibiting large elongation

Nanoquasicrystalline Al–Fe–Cr-based alloys. Part II. Mechanical properties

“…Hosokawa et al [36] found in an AlMg-Si alloy that the minimum particle size for the cavities formation is three times smaller in the case of intragranular particles than for intergranular particles. In the present work, most of the quasicrystalline particles are inside the Al grains, and the fracture surface reveals a large number of cavities.…”

Tensile Properties at Room Temperature to 823 K of Mg-4Y-3RE Alloy

“…[25][26][27] The large elongation for the Al-Mg alloys is attributed to high plastic stability arising from the relatively high strain rate sensitivity of 0.3 due to the glide-controlled dislocation creep. Therefore, it is likely that the large elongation at 723-823 K for the Mg-Y-RE alloy is attributed to the relatively high strain rate sensitivity due to the glide-controlled dislocation creep as well as for the Al-Mg alloys.…”

Numerical simulations of void growth in aluminum alloy AA5083 during elevated temperature deformation

“…nucleation sites, and is partly an undesirable consequence of the enhanced grain boundary sliding and diffusion that occurs in a fine-grained solid. Cavitation has been reported in deformation of a wide range of superplastic materials, including many Al alloys [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23], Mg based alloys [10,20,24,[25][26][27] and Tin alloys [28]. Under certain conditions, extensive cavity growth and coalescence occur, forming inter-granular cracks and causing the material to fail prior to the occurrence of a plastic instability (such as necking) [15,18].…”