[PDF] Top 20 Microstructure and Texture Evolution of the Al 20Sn Alloy Processed by Equal Channel Angular Pressing Using Route C

... Among the most important internal effects that occur during the ECAP process, the grain refinement and the increase of the micro-strain can be highlighted. As a consequence, the broadening of the XRD peaks is expected. ... See full document

... Figueiredo and Langdon (2010) presented a model, which states that the mechanism of grain refinement during ECAP processing of AZ31 mag- nesium alloy is dynamic recrystallization (DRX). This hypothesis is based on ... See full document

... four processed billets after first, second, fourth and sixth pass of I-ECAP ...billets using a linear precision saw, following the cut plan as shown in ...polished using standard mechanical polishing ... See full document

... as-received microstructure contains both a high fraction of low-angle boundaries and an exceptionally large peak at an angle in the vicinity of ...strong texture in the as-received material and a high ... See full document

... magnesium alloy during incremental equal channel angular pressing ...were processed using different routes of I-ECAP at temperatures varying from 125 °C to 250 ... See full document

... considerably improved after 6 passes (Figs. 6(a) and (b)). The increase is about two or three times. In fact, the improvement is pronounced even after 1 pass. Another important observation is that yield strength ... See full document

... duced using accumulative roll bonding method ...obtained using conventional ECAP; [21] however, for thin products, modifications of this process are required, ...e.g., equal channel ... See full document

... the microstructure (grain size, aspect ratio, grain shape preferred orientation) does not change systematically in Y-direction (along the height), except in the lower third, where the grain size is found slightly ... See full document

... die channel angle, number of passes, processing routes on microstructure and mechanical properties of AA 5083 ...performed using Optical Microscope to study the initial grain size, grain ...that ... See full document

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

... Usually, ECAP samples is used to fabricate the automotive parts. There is a strong requirement for this sample to undergo T6 heat treatment in order to enhance the structural integrity and mechanical properties of the ... See full document

... by equal channel angular pressing (ECAP) ...et al. (2016), the effect of equal channel angular pressing of Al- 7075 alloy on the fracture ... See full document

... report microstructure evolution and mechanical properties of Mg alloy AZ31 processed by a new severe plastic deformation technique, the change-channel angular extrusion ...the ... See full document

... 12, using a circular die in cross-section with a diameter of 20 ...a channel in L-shaped configuration with an angle of 90° between the two channels and an angle of 0° at the outer arc curvature at the point ... See full document

... Equal channel angular pressing (ECAP) process provides an efficient procedure for achieving ultrafine grained microstructures with excellent mechanical properties in metallic ...in ... See full document

... Analyzing the experimental results, it was found that there is an inflection point at 400 K (Figs. 7(b) and 7(c)). At this point the behavior of the samples subjected to the DMA tend to split, being the sample with ... See full document

... The ECAP process can reduce significantly the grain size in only two passes. The texture induced by the process is modu- lated by the different passes but not destroyed. The formation of subgrains seems to be very ... See full document

... Porosity is an inherent and inevitable characteristic of the powder metallurgy route. Back pressure in addition to prevention of cracks also has other important effect on pore closure during ECAP. Back pressure ... See full document

... extrusion direction, and newgrains were nucleated on the boundaries of the original grains as indicated by arrows in Fig. 1(b). During ECAE, the grain refinement proceeds over almost the whole region, and the rod shaped ... See full document

... 5083 alloy is in great demand to be used in various applications like shipbuilding, vehicle bodies, pressure vessels and armor plates because of its exceptional strength, good weldability and corrosion ... See full document