2013
DOI: 10.1016/j.jmapro.2013.08.001
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Application of CGP-cross route process for microstructure refinement and mechanical properties improvement in steel sheets

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Cited by 40 publications
(23 citation statements)
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“…By adding the pass numbers and increment of the dislocations density, misorientation angle is increased; hence, they change gradually to the high angle grain boundaries. [49][50][51] As claimed, there is an approach to estimate dislocations density of the material based on the lattice microstrain and crystallite size according to equation (3). 52 In this equation, r and b denote the total dislocations density and the Burgers vector, respectively.…”
Section: Resultsmentioning
confidence: 99%
“…By adding the pass numbers and increment of the dislocations density, misorientation angle is increased; hence, they change gradually to the high angle grain boundaries. [49][50][51] As claimed, there is an approach to estimate dislocations density of the material based on the lattice microstrain and crystallite size according to equation (3). 52 In this equation, r and b denote the total dislocations density and the Burgers vector, respectively.…”
Section: Resultsmentioning
confidence: 99%
“…8 CGP technique was first developed by Shin et al 9 in 2002 and many studies have been conducted on it. 6,7,[10][11][12][13][14][15][16][17] The principle of the CGP process is to create severe plastic deformation based on repetitive pressing of the sheet under the two sets of symmetrically grooved and flat dies. 18 A single pass of the CGP process includes four steps, the sequence of which is illustrated in Figure 1.…”
Section: Introductionmentioning
confidence: 99%
“…2 The yield strength, hardness, fatigue strength, plasticity, diffusivity, and corrosion resistance of the UFG materials are improved by grain refinement, while their elongation and ductility are decreased. 1,[3][4][5] The equal channel angular pressing (ECAP) is considered to be one of the most applicable methods among SPD processes, developed by Segal et al 6 In this process, the billet is extruded through the ECAP die (two equal channels) and undergoes ultra-deformation, resulting in locking dislocations and grain refinement of the billet. Recently, using UFG materials in the automobile, military, medical, and aerospace industries has been considered.…”
Section: Introductionmentioning
confidence: 99%