Deformation Analysis of Elliptical Cross-Section Spiral Equal Channel Extrusion Technique

Wang, Chengpeng; Li, Fuguo; Lu, Hongya; Yuan, Zhanwei; Chen, Bin; Qiao, Hongchao

doi:10.1016/s1875-5372(13)60055-7

Cited by 14 publications

(9 citation statements)

References 6 publications

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“…In another effort, Wang et al [11] developed a simple analytic model based on slice-plain-Strain simple method and developed an incremental evolutionary theory to predict the efficient simulation of the ECSEE process. According to them, the mechanism of deformation in the ECSEE can be divided into two stages: first, the deformation of the oval / elliptic circular cross-sectional channel, and the second, the deformation of the tidal transition channel of the elliptical crosssection, through the tracing of a particle of Cross section.…”

Section: To Counter This Task By Wang Et Al a New Spd Technique Callmentioning

confidence: 99%

“…Where y is the responses (i.e., punch force, effective pressure and mean squared error); b0, bi, bii and bij are coefficients; Xiu is the variable (Φ, L, and m); you have the number of tests (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13). k is the number (1-3); Xiu2 is the term above the variable and Xiu, Xju are interacting.…”

Section: Mathematical Model Of Responsesmentioning

confidence: 99%

See 1 more Smart Citation

Enhancing Mechanical Property of Al7075 by Using Elliptical Cross- Sectioned Spiral Equal-Channel Extrusion: Experimental, Numerical and Optimization Approach

Ghasempour-Mouziraji¹,

Ghorbani-Menghari²,

Hosseinzade³

et al. 2018

Int J Adv Tech

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Section: To Counter This Task By Wang Et Al a New Spd Technique Callmentioning

confidence: 99%

Section: Mathematical Model Of Responsesmentioning

confidence: 99%

Enhancing Mechanical Property of Al7075 by Using Elliptical Cross- Sectioned Spiral Equal-Channel Extrusion: Experimental, Numerical and Optimization Approach

Ghasempour-Mouziraji¹,

Ghorbani-Menghari²,

Hosseinzade³

et al. 2018

Int J Adv Tech

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“…These techniques include equalchannel angular pressing (ECAP) (Ref [5][6][7][8], high-pressure torsion (HPT) ( Ref 3,9,10), torsion-extrusion (TE) (Ref [11][12][13][14], combined tension-torsion (CTT) ( Ref 15,16) and elliptical cross-sectioned spiral equal-channel extrusion (ECSEE) (Ref [17][18][19][20][21]. All of these procedures are capable of introducing large plastic straining and significant microstructural refinement in bulk crystalline solids.…”

Section: Introductionmentioning

confidence: 99%

Microhardness Distribution and Microstructural Evolution in Pure Aluminum Subjected to Severe Plastic Deformation: Elliptical Cross-Sectioned Spiral Equal-Channel Extrusion (ECSEE)

et al. 2015

J. of Materi Eng and Perform

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Elliptical cross-sectioned spiral equal-channel extrusion (ECSEE), one of the severe plastic deformation techniques, is of great efficiency in producing bulk ultrafine or nanostructured materials. In this paper, the simulation and experimental researches on ECSEE of high-purity aluminum were conducted to investigate the equivalent strain distribution and microhardness distribution on three orthogonal planes, as well as microstructural evolution. Simulation result shows a significant strain gradient on three planes. Microhardness tests comprise the similar results to strain distribution. According to transmission electron microscopy (TEM) results, microstructural evolution ranged from coarse structures to ultrafine structures by undergoing the shear bands, subgrains, high-angle misorientation grain boundaries and equiaxed structures. There are also some distinctions with reference to grain refinement level, grain boundary styles and dislocation distribution on different positions. The TEM investigations are in good agreement with microhardness tests.

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“…In accordance with von Mises theory, the equivalent stress in the cylinder is calculated by equation (20):…”

Section: Elastic Contactmentioning

confidence: 99%

Analytical modeling of through depth strain induced by deep rolling

Han

Zhang

Yao

et al. 2021

The Journal of Strain Analysis for Engineering Design

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The material properties of the surface layer caused by deep rolling are closely related to the degree of strain hardening. It is of great significance to establish the prediction model of strain distribution to realize the surface strain control and improve the service performance of deep rolling parts. In this study, the analytical models of elastic-plastic strain based on the Hertz contact theory were established by two different methods. The accuracy of the analytical prediction model of elastic-plastic strain was examined by deep rolling simulation. Then, the influence of deep rolling parameters, such as rolling force, the ball diameter, and material on the elastic-plastic strain along the depth was studied and validated by the microhardness profiles along the depth. The results indicate that the analytical model established by the first method is more accurate, and the error between maximum elastic-plastic strain obtained by the first method and finite element (FE) simulation is 12.6%. The elastic-plastic strain along the depth increases with the increasing rolling force and decreases with the increasing ball diameter, and its effective depth increases with the increasing rolling force. The tungsten carbide ball generates more elastic-plastic strain than balls of the other two materials (silicon nitride and steel). In addition, the elastic-plastic strain profiles are in accordance with the change of microhardness along the depth. In a word, the model can be used to predict the strain distribution along the depth induced by deep rolling.

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Deformation Analysis of Elliptical Cross-Section Spiral Equal Channel Extrusion Technique

Cited by 14 publications

References 6 publications

Enhancing Mechanical Property of Al7075 by Using Elliptical Cross- Sectioned Spiral Equal-Channel Extrusion: Experimental, Numerical and Optimization Approach

Enhancing Mechanical Property of Al7075 by Using Elliptical Cross- Sectioned Spiral Equal-Channel Extrusion: Experimental, Numerical and Optimization Approach

Microhardness Distribution and Microstructural Evolution in Pure Aluminum Subjected to Severe Plastic Deformation: Elliptical Cross-Sectioned Spiral Equal-Channel Extrusion (ECSEE)

Analytical modeling of through depth strain induced by deep rolling

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