incremental ECAP
Influence of incremental ECAP on the microstructure and tensile behaviour of commercial purity titanium
... different ECAP routes [6]. Despite the success of the ECAP process, it is not an ideal option from the commercialization ...The incremental ECAP (I-ECAP) process [7], which has been ...
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Grain refinement in technically pure aluminium plates using incremental ECAP processing
... confirm incremental ECAP to be one of the most effective severe plastic deformation methods in terms of grain size refinement and high angle grain boundaries ...
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Incremental ECAP as a novel tool for producing ultrafine grained aluminium plates
... an incremental method of ECAP process which allows to obtain thick sheets with UFG structure is ...by incremental ECAP using 8 passes of A+B ...by incremental ECAP are comparable ...
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Incremental ECAP of thick continuous plates - machine and initial trials
... Abstract. Incremental ECAP (I-ECAP) can be used for SPD of continuous bars, plates and sheets. This paper describes design, construction and preliminary trials of a prototype machine capable of ...
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Incremental ECAP as a method to produce ultrafine grained aluminium plates
... modified ECAP method, namely incremental ...conventional ECAP, incremental ECAP works in small steps in which deformation and feeding are divided between two different tools acting ...
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Microstructure and mechanical properties of Al-1050 during incremental ECAP
... Abstract. Incremental ECAP is a new method of ECAP process were the severe shear deformation is incrementally applied on the sample resulting in grain refining and new texture ...conventional ...
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Incremental ECAP with converging billets
... The basic version of Incremental ECAP (I-ECAP) is shown in Fig. 4 [6]. The die C is a working die, which moves in a reciprocating manner at an appropriate angle to the billet. Feeding of the billet ...
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Effect of channel angle on the material flow and hardness distribution during incremental ECAP of Al-1050 billets
... Experiments were performed using AA-1050 billets measuring 10x10x60mm, the billets were machined from round bars in the extrusion direction. Before the experiments could be conducted, it was necessary to perform some ...
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Wytwarzanie wielofunkcyjnych blach do tłoczenia za pomocą przyrostowego odkształcania w kanale kątowym : Production of tailored blanks by Incremental ECAP
... Two configurations of tools performing in- cremental shearing in the I-ECAP method have been proposed, which enable production of TSBs. The tools that provide the greatest freedom in changing thickness require the ...
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Tailored sheared blanks produced by incremental ECAP
... The process modelled by FE simulation was slightly different from that in Fig, 2 in order to facilitate material flow at the punch/clamp interface and avoid numerical problems. This has been achieved by increasing the ...
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The origin of fracture in the I-ECAP of AZ31B magnesium alloy
... Despite ECAP being a very popular tool for grain refinement, it is not suitable for a large-scale production of ultra-fine-grained materials with improved ...conventional ECAP is a limitation of the billet’s ...
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Effect of ECAP Strain on Deformation Behavior at Low Temperature Superplastic Regime of Ultrafine Grained 5083 Al Alloy Fabricated by ECAP
... 3.1 Characteristics of the as-ECAPed microstructure TEM microstructures of the samples after 4 and 8 passes are compared in Fig. 1. There was no significant difference in the apparent (sub)grain size between the two ...
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The Influence Of ECAP On The Microstructural And Tribological Properties Of AA6061
... the ECAP process, substantial modifications in mat erial microstructure occur such as intense grain and particle re fining in the second stage, structure formation characterized b y equi-axed grains and higher ...
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Public transport values of time
... Incremental effect if value estimated to toll numeraire Incremental effect for RP based value of walk time Incremental effect for RP based value of wait time Incremental effect of pen an[r] ...
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Mechanical Properties of ECAP-Biomedical Titanium Materials: A Review
... ABSTRACT: Wide use of titanium (Ti) materials in medicine gives impetus to a search for development new techniques with elevated properties such as strength, corrosion resistance and Young's modulus close to that of bone ...
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The role of microstructure and texture in controlling mechanical properties of AZ31B magnesium alloy processed by I-ECAP
... lowed by annealing was reported by Mukai et al. [10]. The obtained ductility enhancement, accompanied by reduction of yield strength, also observed in this work (increase of true strain at fracture from 0.22 to 0.35), ...
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A comparison between numerical and analytical modeling of ECAP
... Considering Fig. 6, at the beginning of the process the force increases with a high rate. This is attributed to the work hardening phenomenon and the clearance between tool and material, which caused billet to be forged ...
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Mechanical properties and microstructure of AZ31B magnesium alloy processed by I-ECAP
... alloys. It is clear from Figures 5(a) and (b) that fracture mechanisms of the samples AR and C are different. Failure mechanism of the sample AR can be described as abrupt, very moderate ductile fracture (almost brittle) ...
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Microstructure and corrosion behavior of the friction stir welded joints made from ultrafine grained aluminum
... Both I-ECAP and FSW processes induce significant changes in the microstructure of I-ECAP results in a grain refinement from 2.79 µm to 1.16 µm and an FSW process causes a grain growth in[r] ...
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Cyclic Response of SUS316L Stainless Steel Processed by ECAP
... long been recognized as a root cause for cyclic strain softening of UFG materials manufactured by SPD. De- pendence of the cyclic softening on the plastic strain amplitude was reported in UFG copper produced by ...
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