[PDF] Top 20 Microstructural evolution in a spray cast aluminum alloy during equal channel angular pressing

... as-received alloy and (b) shows the microstructure at the same magnification after 6 passes of ...as-received spray-cast alloy was the presence of large rod-like precipitates representing the ... See full document

... It appears that the effect of strain rate on the tensile behaviour is minor. There is a normal tendency that the higher strain rate yields a higher level of the flow stress and reduces the total strain to failure ... See full document

... similar microstructural evolution was observed in the Al– ...3%Mg–0.1%Zr alloy except that the average grain sizes were ∼ 1 ...the microstructural evolution of the Al–3%Mg–0.2%Sc ... See full document

... The microstructural evolutions of metals and alloys subjected to low and medium plastic deformation have been discussed severally [14] [15]. The outcome of their studies is a model describing severely the deformed ... See full document

... Incremental equal channel angular pressing (I-ECAP) is one of the continuous severe plastic deformation (SPD) ...°C. Microstructural evolution and texture development were ... See full document

... Microstructural evolution taking place during equal channel angular pressing (ECAP) was studied in an as-cast ...7475 aluminum alloy at a temperature ... See full document

... Now, the hardness distribution throughout the cross section is depicted in Fig. 6 based on the strain distributions shown in Fig. 3 and using eqs. (1) and (2) derived above. Here, Fig. 6(a) is for the ECAP sample and ... See full document

... series aluminum alloy. Optical micrograph (a) showing a microstructural overview and color-coded orientation map OM (b) and image quality map IQ (c) from EBSD ... See full document

... aluminium alloy specimens—treated by ECAP—is ...on aluminum alloys, also severely deformed, but by other ...textures evolution of aluminium alloys by neutron scattering, this is the first time that ... See full document

... AZ91D alloy owing to its desirable microstructure with fine spheroidal grains and its high mechanical properties of formed components at both room and elevated ...the microstructural changes of an ... See full document

... this evolution cannot be achieved in more conventional metal-working processes because of the natural limit imposed on the total strain introduced during deformation ... See full document

... by equal channel angular pressing (ECAP) ...of equal channel angular pressing of Al- 7075 alloy on the fracture toughness is experimentally investigated by ... See full document

... Equal-channel angular Pressing (ECAP) is a severe plastic deformation technique, which has shown the ability to process a metal with relatively large grain size ...the aluminum (Al) ... See full document

... structural evolution taking place during equal channel angular pressing (ECAP) was studied in an as- cast ...aluminium alloy at a temperature of 673 ...strain. ... See full document

... better understanding of the deformation mechanisms operating in the ECAP process, which leads to the observed intense grain refinement. In this process, a vast amount of EBSD measurements was carried out, including two ... See full document

... texture evolution due to DCAP is far from that due to ECAP, since the deformation behavior during DCAP is not similar to that characterized by ECAP but very close to the ideal simple shear ...for ... See full document

... Figure 3 shows the microstructure, observed by TEM, of the planes marked in Fig. 1(b). The microstructure evolved from a coarse grain of several microns for the as-cast condition (Fig. 3(a)), to a more refined ... See full document

... the evolution of the mechanical behavior after annealing of the AA1070 aluminum alloy cold pressed equal angular ...after pressing and along the heat ... See full document

... 4b, 5b, 6b, 7b, 8b, 9b, d, 10) we see a smaller dead zone size dDb. Computational flow lines (Fig. 3) are the lines near which flow function ψ (Fig. 4) is constant ψ = const. The computed effect in Fig. 4, which shows ... See full document

... properties, equal channel angular pressing (ECAP) is the most popular one because of the relative simplicity of tool design (two intersecting channels) and tool kinematics (static die and ... See full document