Residual stress reduction by pulsed magnetic treatment

Klamecki, Barney E.

doi:10.1016/s0924-0136(03)00387-x

Cited by 48 publications

(21 citation statements)

References 5 publications

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“…Earlier research has shown that the use of pulsed electric current (PEC) and pulsed magnetic field (PMF) treatment can lead to relaxation of mechanical stresses in metals [7][8][9][10][11] . Some consensus has been reached that the reason for the relaxation of stresses is the increased mobility of dislocations caused by the treatments.…”

Section: Introductionmentioning

confidence: 99%

Effect of pulsed magnetic treatment on the corrosion of titanium

Babutskyi

Chrysanthou

Smelina

et al. 2017

Materials Science and Technology

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This is an Accepted Manuscript of an article published by Taylor & Francis in Materials Science and Technology on 17 March 2017, available online: http://www.tandfonline.com/doi/full/10.1080/02670836.2017.1302141. Under embargo. Embargo end date: 17 March 2018.Results of corrosion tests of titanium in the initial state and after treatment using pulsed magnetic field are presented. It is shown that samples after treatment have better corrosion resistance due to the formation of denser and finer corrosion products with better adhesion to the substrate. Samples after treatment have more homogeneous microstructure due to a substantial increase of dislocations which are uniformly distributed. Mechanisms of dislocation multiplication and a model explaining the effect of the treatment on the corrosion are discussed

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Section: Introductionmentioning

confidence: 99%

Effect of pulsed magnetic treatment on the corrosion of titanium

Babutskyi

Chrysanthou

Smelina

et al. 2017

Materials Science and Technology

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“…This causes current-induced movement and migration of dislocations and vacancies to various sinks [7,12]. As for magnetic field, the most common explanation of stress relaxation due to the magnetic field is a magnetostriction, which causes dislocation structure rearrangement as a result of microstructural changes and increased dislocation movement [9] because the interaction between the magnetic domain wall and the dislocation stress field enables dislocations to overcome the obstacle and move. In Ref.…”

Section: Discussionmentioning

confidence: 99%

Effect of pulsed magnetic field pre-treatment of AISI 52100 steel on the coefficient of sliding friction and wear in pin-on-disk tests

2014

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Disc specimens manufactured from commercial bearing rollers (AISI 52100 steel, 62−63 HRC) in initial state and after pre-treatment by pulsed magnetic field (PMF) with a magnetic field strength of 1−7 MA/m were tested with sunflower oil using pin-on-disk apparatus. According to the obtained results the treatment causes a reduction in the coefficient of friction and wear. To explain the results, nano-and microhardness tests as well as optical and atomic force microscopy were used. Reasons of the effect of PMF on the friction and wear were discussed.

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“…Celik [13] investigated the fatigue life of AISI 4140 steel under different magnetic field intensities and found that the fatigue life increased when the magnetic field was applied up to 30% of the fatigue fracture cycle of the untreated samples, and the treated effects also varied according to different magnetic field intensities. Klamechi [14] researched the residual stress of curved strip samples with and without applying an external magnetic field and the results showed that the residual stress was reduced by 4%-13% after the particular pulsed magnetic treatment. Cai [15] studied the effects of the magnetic field intensity orientation on the welding residual stress release by the pulsed magnetic field treatment and the results showed that the welding residual stress was reduced by up to 26% when the magnetic field was oriented along the blank thickness.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties Improvement of Laser Tailor Welded Blanks of DP600 Steel by Magnetic Treatment

Song

et al. 2017

Metals

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Abstract:The influence of magnetic treatment on the yield strength, the ultimate tensile strength and the elongation of laser tailor welded blanks (TWBs) of DP600 steel was investigated by uniaxial tensile tests. The experimental results showed that the yield strength and the ultimate tensile strength of the TWBs had only a slight change, but the elongation increased by 13.90%-36.23% after the magnetic treatment. The dislocation distributions in the fusion zone (FZ) and the heat-affected zone (HAZ) were observed respectively by transmission electron microscopy (TEM). It was found that after magnetic treatment, the dislocations in both the FZ and the HAZ of the TWBs increased and showed a relatively uniform distribution. The mechanism of the mechanical property improvement of the TWBs by the magnetic treatment was then revealed on the basis of the relationship model between the dislocation and shear strain, considering the evolution of magnetic domains and Frank-Read dislocation multiplication in a magnetic field.

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Residual stress reduction by pulsed magnetic treatment

Cited by 48 publications

References 5 publications

Effect of pulsed magnetic treatment on the corrosion of titanium

Effect of pulsed magnetic treatment on the corrosion of titanium

Effect of pulsed magnetic field pre-treatment of AISI 52100 steel on the coefficient of sliding friction and wear in pin-on-disk tests

Mechanical Properties Improvement of Laser Tailor Welded Blanks of DP600 Steel by Magnetic Treatment

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