Si-Young Chang

TL;DR: In this article, a submicrometer-grained structure was introduced in a commercial 5083 Al alloy by imposing an effective strain of ∼8 through equal channel angular pressing, and the as-equal channel angular pressed (as-ECAP) samples were tensile tested in the strain rate range of 10−5 to 10−2 s−1 at temperatures of 498 to 548 K.

TL;DR: In this article, an equiaxed ultra-fine grained structure of ∼ 0.3 µm was obtained in a commercial 5083 Al alloy with an initial grain size of ∼ 200 µm using the equal channel angular pressing (ECAP) technique.

TL;DR: In this article, the commercial pure Mg, AZ31 and AZ61 alloys were severly plastic-deformed through equal channel angular pressing (ECAP), and the microstructure of fine grains of less than 5 μm and coarse grains of approximately 5 ∼ 10 μm were attributed to dynamic recrystallization during ECAP.

TL;DR: In this paper, the microstructure and mechanical properties such as microhardness and tensile properties of the equal channel angular pressed P/M 6061 Al alloy were investigated, and an equiaxed ultra-fine grained structure with the mean grain size of ∼0.5 μm was obtained after four repetitive equal-channel angular pressings at 473 K using route A and C.

TL;DR: In this paper, the microstructure and tensile deformation characteristics in the commercial 5083 Al alloy after equal channel angular pressing (ECAP) at 373 and 473 K were investigated and compared with those of one reannealed at 473 k for 1 h after ECAP at 373 K.