[PDF] Top 20 Processing and Mechanical Properties of Fine Grained Magnesium by Equal Channel Angular Pressing

... and mechanical properties inherent in various UFG materials but also a number of advantages over nanostructured materials manufactured by other methods through powder ...bonding, equal channel ... See full document

... three-step processing was adopted in hypo-eutectoid Cu–Al alloys to obtain controllable bimodal structure of micrometer-grained pre-eutectoid phase embedded on ultrafine-grained (UFG) matrix with ... See full document

... The severely deformed materials exhibit thermal instability, despite their improved mechanical properties, due to the high density of crystalline defects. The thermal stability of the processing ... See full document

... its mechanical properties without sacrificing other beneficial ...ultrafine grained microstructure. Significant grain refinement obtained by equal channel angular pressing ... See full document

... of equal channel angular pressing on microstructure and mechanical properties on non-dendritic LM25 aluminium alloy that is widely used in industry of manufacturing to produce ... 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

... The aluminum alloys from 6xxx series are precipita- tion hardenable. It was proved that very high mechan- ical strength can be obtained by combining SPD processes also with post-processed aging treatment. For AA6056 ... See full document

... (SPD) processing that enables increasing significantly the contribution of grain-boundary strengthening, and also involves a combination of other strengthening factors (work hardening, twins, ...SPD ... See full document

... by equal channel angular pressing (ECAP) in comparison with their annealed or ordinary cold-worked ...of mechanical properties and damage evolution during ...different ... See full document

... their mechanical behaviour when exposed to different loading conditions, strain rates and temperatures, and to be able to model the behaviour and later, to predict the behaviour for any of these ...improve ... See full document

... Increased yield strength and hardness can be justified by strain hardening at initial stages. Specifically from the first pass to the fourth passes, the strain hardening plays a pivotal role in yield strength, increasing ... See full document

... Equal-channel angular pressing (ECAP) is a severe plastic deformation process (SPD) that use to obtain ultrafine grain ...ultrafine grained microstructure at low homologous ... See full document

... improve mechanical properties of magnesium and other metals many thermo- mechanical processes have been ...re- fine its grain microstructure and improve its strength, are very ... See full document

... Thus, cyclic softening should be dependent on the size, amount and distribution of precipitates. In line with these trivial expectations, Fig. 6 shows that the rate of softening differs for materials with different ... See full document

... their 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 ... See full document

... the mechanical properties of ultra-fine grained (UFG) materials produced by severe plastic deformation (SPD) techniques such as equal channel angular pressing (ECAP), 1–4) ... See full document

... To avoid a partial development of coarse recrystallized grains in the present aluminum alloy, some samples were continuously ECAPed up to ¾ = 12 without any interruption at 573 K [see Fig. 1(b)]. The typical ... See full document

... Equal channel angular pressing (ECAP) is a viable forming procedure to extrude material by use of specially designed channel dies without a substantial change in geometry and to make an ... See full document

... of equal cross-section (Segal, 2004). Materials’ processing by ECAP results in the accumu- lation of large shear strains and material structure refinement with physical properties enhancement ... See full document

... the pressing is commonly designated as route ...tensile properties of the steels were measured with the initial strain rate of 1:33 10 3 s 1 by an Instron ... See full document