The L ders Deformation of Mild Steel

Hall, E. O.

doi:10.1088/0370-1301/64/12/109

Cited by 57 publications

(89 citation statements)

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“…This leads to a lower resultant stress state for dislocation slip [9]. Such a model has been widely used as an explanation for the empirical Hall-Petch relationship [9][10][11] which relates yield strength to grain size of a polycrystalline material by the equation:…”

Section: Introductionmentioning

confidence: 99%

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Slip band–grain boundary interactions in commercial-purity titanium

2014

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Section: Introductionmentioning

confidence: 99%

“…For this type of dislocations to glide across the whole grain, resolved shear stress on their slip plane should be sufficiently large otherwise they cease propagating after a short distance from grain boundary and other more mechanically favourable dislocation sources could be activated [10,11,36].…”

Section: Introductionmentioning

confidence: 99%

Slip band–grain boundary interactions in commercial-purity titanium

2014

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“…The Hall-Petch effect was, therefore, evaluated to separate the contribution of the grain refinement and the precipitation hardening by Ti 3 Au to the increase in · s . The relationship between the stress for slip deformation · HP and grain size d is given by the Hall-Petch relationship; 37,38) …”

Section: Effect Of Annealing Temperature On Superelasticmentioning

confidence: 99%

Effect of Annealing Temperature on Microstructure and Superelastic Properties of Ti-Au-Cr-Zr Alloy

et al. 2015

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Effect of annealing temperature on microstructure and superelasticity of Ti-4Au-5Cr-8Zr (mol%) was investigated. Only ¢ phase was observed in the specimen annealed at 1173 K, whereas the precipitation of Ti 3 Au, Zr 33 Ti 40 Au 27 (Laves phase) and ¡ phase occurred in the specimens annealed below 1073 K. Superelasticity was clearly observed in the specimens annealed at 1073 K and 1173 K, though it was absent in the specimens annealed at 873 K and 973 K. The maximum superelastic recovery strain was increased by the precipitation of Ti 3 Au in the specimen annealed at 1073 K. This is due to the increase in the critical stress for slip by the precipitation strengthening effect of Ti 3 Au.

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“…Coming back to low-temperature deformation, thermally activated deformation processes in polycrystals are often discussed in relation to the well-known Hall-Petch equation 43,44) …”

Section: Thermally Activated Deformation Processes In Polycrystals Anmentioning

confidence: 99%

Selected Topics on Material Strength and Thermally Activated Deformation Processes

Kato

2015

Mater. Trans.

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Thermally activated deformation processes are discussed with reference to the studies done by the present author and his coworkers. First, dislocation motion in one-and two-dimensional periodic stress fields is analyzed to understand the deformation mechanisms of bcc metals and spinodally decomposed alloys. The role of the thermally activated kink-pair formation on the temperature and strain-rate dependence of strength is also discussed. Secondly, diffusion-controlled processes pertinent to high-temperature deformation are discussed by applying a unified and fundamental rate equation derived previously. Thirdly, mechanisms for the temperature and strain-rate dependence of polycrystals and ultrafinegrained and nanocrystalline materials are introduced. A proposed model taking into account the thermally activated dislocation depinning at grain boundaries is discussed.

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The L ders Deformation of Mild Steel

Cited by 57 publications

References 1 publication

Slip band–grain boundary interactions in commercial-purity titanium

Slip band–grain boundary interactions in commercial-purity titanium

Effect of Annealing Temperature on Microstructure and Superelastic Properties of Ti-Au-Cr-Zr Alloy

Selected Topics on Material Strength and Thermally Activated Deformation Processes

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