Modelling the steady state deformation stress under various deformation conditions using a single irreversible thermodynamics based formulation

Huang, Mingxin; Rivera-Dı́az-del-Castillo, P.E.J.; Bouaziz, Olivier; Zwaag, Sybrand van der

doi:10.1016/j.actamat.2009.03.023

Cited by 40 publications

(13 citation statements)

References 22 publications

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“…2), but the dislocation density continuously increases with strain ( Fig.3, Fig.6 and Fig.8 (e)). Therefore, the saturated flow stress in the present work is different to the common steady state deformation conditions reported in literature [30], in which both flow stress and total dislocation density keep constant with strain.…”

Section: Accepted Manuscriptcontrasting

confidence: 46%

Mechanism of saturated flow stress during hot tensile deformation of a TA15 Ti alloy

Liu

Wang

et al. 2015

Materials & Design

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Section: Accepted Manuscriptcontrasting

confidence: 46%

Mechanism of saturated flow stress during hot tensile deformation of a TA15 Ti alloy

Liu

Wang

et al. 2015

Materials & Design

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“…Admittedly, the tendencies for recrystallization-whether static or dynamic-are different for Cu and Al. These differences are often cited in the literature [38]. However, until 3-D EAM MD simulations are available for the sliding of Al, the effects reported for Cu serve to alert us to the possibility that recovery and recrystallization processes can alter and even help to produce nanocrystalline tribomaterial.…”

Section: Formation Of Nanostructurementioning

confidence: 91%

Nanostructures generated by explosively driven friction: Experiments and molecular dynamics simulations

et al. 2009

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“…From an irreversible thermodynamic perspective, integrating cavitation as a dissipative component of dislocation creep would expand our current understanding of a crystal's internal entropy production (see Eq. 1 of Huang et al, 2009). This would alter Eq.…”

Section: Nucleation Of Creep Cavities During Gsi Creepmentioning

confidence: 99%

“…This would alter Eq. (18) of Huang et al (2009), which describes the total rate of reduction (ρ − ) of the dislocation density at a steady state (ρ). Integrating Zener-Stroh crack formation as a ρ − mechanism would yield are the dislocation annihilation rates due to dynamic recrystallisation, dynamic recovery and creep cavitation, respectively.…”

Section: Nucleation Of Creep Cavities During Gsi Creepmentioning

confidence: 99%

Hierarchical creep cavity formation in an ultramylonite and implications for phase mixing

et al. 2017

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Abstract. Establishing models for the formation of wellmixed polyphase domains in ultramylonites is difficult because the effects of large strains and thermo-hydro-chemomechanical feedbacks can obscure the transient phenomena that may be responsible for domain production. We use scanning electron microscopy and nanotomography to offer critical insights into how the microstructure of a highly deformed quartzo-feldspathic ultramylonite evolved. The dispersal of monomineralic quartz domains in the ultramylonite is interpreted to be the result of the emergence of synkinematic pores, called creep cavities. The cavities can be considered the product of two distinct mechanisms that formed hierarchically: Zener-Stroh cracking and viscous grain-boundary sliding. In initially thick and coherent quartz ribbons deforming by grain-size-insensitive creep, cavities were generated by the Zener-Stroh mechanism on grain boundaries aligned with the Y Z plane of finite strain. The opening of creep cavities promoted the ingress of fluids to sites of low stress. The local addition of a fluid lowered the adhesion and cohesion of grain boundaries and promoted viscous grain-boundary sliding. With the increased contribution of viscous grainboundary sliding, a second population of cavities formed to accommodate strain incompatibilities. Ultimately, the emergence of creep cavities is interpreted to be responsible for the transition of quartz domains from a grain-size-insensitive to a grain-size-sensitive rheology.

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Modelling the steady state deformation stress under various deformation conditions using a single irreversible thermodynamics based formulation

Cited by 40 publications

References 22 publications

Mechanism of saturated flow stress during hot tensile deformation of a TA15 Ti alloy

Mechanism of saturated flow stress during hot tensile deformation of a TA15 Ti alloy

Nanostructures generated by explosively driven friction: Experiments and molecular dynamics simulations

Hierarchical creep cavity formation in an ultramylonite and implications for phase mixing

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