The effect of constrained groove pressing on grain size, dislocation density and electrical resistivity of low carbon steel

Khodabakhshi, F.; Kazeminezhad, M.

doi:10.1016/j.matdes.2011.02.032

Cited by 106 publications

(50 citation statements)

References 41 publications

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“…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%

“…Applying a high-pressure deformation switch through a special material will improve grain refinement, unique properties and mechanical properties. Over the past decades, SPD processes have been widely used in various fields, in particular at pressing the same channel angle (ECAP) [1], high pressure indentation (HPT) [2], limited pressure (CGP) [3] [4], bending extrusion (TE) [5,6], roll expansion (ARB) [7] and limitations, etc. SPD technology is an emerging process in applications not only in laboratory scale, But also in the industries for business development [8].…”

Section: Introductionmentioning

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: Mathematical Model Of Responsesmentioning

confidence: 99%

Section: Introductionmentioning

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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“…Moreover, thermodynamic calculations show that the electropulsing treatment encourages a structural evolution in materials towards the state with lower electrical resistance [27]. Different types of scattering mechanisms and defects such as morphology of phases, impurities, dislocations and grain boundaries contribute to the value of electrical resistivity [28]. The steel under study has two phases: cementite with higher electrical resistivity than ferrite.…”

Section: Effect Of Electropulsing On the Interlamellar Spacingmentioning

confidence: 99%

The effect of electropulsing on the interlamellar spacing and mechanical properties of a hot-rolled 0.14% carbon steel

Rahnama

Qin

2015

Materials Science and Engineering: A

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“…Teflon layers were used as the lubricant between the samples and the dies. More details of the CGP method are given in 19,20 . For ultra-rapid annealing, the samples were machined from both sides up to a thickness of 1.8 mm, and then cut into specimens with a width of 14 mm.…”

Section: Experimental Partmentioning

confidence: 99%

Grain-refining ability of ultra-rapid annealing for low-carbon steel: severe plastic deformation

Mostafaei¹,

Kazeminezhad²

2017

Mater. Tehnol.

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To study the grain-refinement ability of ultra-rapid annealing (URA), heating rates from 0.3°C/s up to 1200°C/s with conventional annealing and URA in the intercritical temperature range were performed on severely deformed low-carbon steel. The results show that recrystallization in conventional annealing is completed below the critical temperature of Ac1 without grain refinement. URA up to 730°C at a heating rate of 200°C/s causes grain refinement due to full interaction between the recrystallization and phase transformation. URAs up to 730°C with heating rates of 600°C/s and 1000°C/s lead to partial grain refinement and no grain refinement, respectively. During annealing with a heating rate of 1200°C/s, the temperature should reach 760°C for the occurrence of recrystallization leading to grain refinement. The sample URAed at 600°C/s up to 730°C shows the maximum hardness due to fine grains being partially formed. Keywords: conventional annealing, ultra-rapid annealing, interaction, severe plastic deformation Za {tudij sposobnosti udrobnjenja zrn pri zelo hitrem`arjenju, so bile uporabljene hitrosti segrevanja od 0,3°C/s do 1200°C/s pri obi~ajnem in zelo hitrem`arjenju v interkriti~nem temperaturnem obmo~ju na mo~no deformiranem malooglji~nem jeklu. Rezultati ka`ejo, da je rekristalizacija pri konvencionalnem`arjenju zaklju~ena pod kriti~no temperaturo Ac1 brez udrobnjenja zrn. Zelo hitro`arjenje do 730°C pri hitrosti ogrevanja 200°C/s povzro~i udrobnjenje zrn, zaradi polne interakcije med rekristalizacijo in fazno premeno. Zelo hitro`arjenje do 730°C , s hitrostjo ogrevanja 600°C/s in 1000°C/s povzro~i delno udrobnjenje zrn oz. udrobnjenja zrn ni. Med ogrevanjem s hitrostjo 1200°C/s je potrebno dose~i temperaturo 760°C, da se pojavi rekristalizacija, ki povzro~i udrobnitev zrn. Vzorec po zelo hitrem`arjenju z 600°C/s do 730°C ka`e maksimalno trdoto zaradi delnega nastanka drobnih zrn.

show abstract

The effect of constrained groove pressing on grain size, dislocation density and electrical resistivity of low carbon steel

Cited by 106 publications

References 41 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

The effect of electropulsing on the interlamellar spacing and mechanical properties of a hot-rolled 0.14% carbon steel

Grain-refining ability of ultra-rapid annealing for low-carbon steel: severe plastic deformation

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