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Engineering grain boundary sliding and cavitation effects in superplastic alloys employing thermodynamics

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Engineering grain boundary sliding and cavitation effects in superplastic alloys employing thermodynamics. / Galindo-Nava, E. I.; Torres-Villaseñor, G.; Rivera-Díaz-Del-Castillo, P. E J.
In: Materials Science and Technology (United Kingdom), Vol. 31, No. 6, 01.04.2015, p. 677-687.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Galindo-Nava, EI, Torres-Villaseñor, G & Rivera-Díaz-Del-Castillo, PEJ 2015, 'Engineering grain boundary sliding and cavitation effects in superplastic alloys employing thermodynamics', Materials Science and Technology (United Kingdom), vol. 31, no. 6, pp. 677-687. https://doi.org/10.1179/1743284714Y.0000000643

APA

Vancouver

Galindo-Nava EI, Torres-Villaseñor G, Rivera-Díaz-Del-Castillo PEJ. Engineering grain boundary sliding and cavitation effects in superplastic alloys employing thermodynamics. Materials Science and Technology (United Kingdom). 2015 Apr 1;31(6):677-687. doi: 10.1179/1743284714Y.0000000643

Author

Galindo-Nava, E. I. ; Torres-Villaseñor, G. ; Rivera-Díaz-Del-Castillo, P. E J. / Engineering grain boundary sliding and cavitation effects in superplastic alloys employing thermodynamics. In: Materials Science and Technology (United Kingdom). 2015 ; Vol. 31, No. 6. pp. 677-687.

Bibtex

@article{ffa9473def304496baaeb813be0b4ff0,
title = "Engineering grain boundary sliding and cavitation effects in superplastic alloys employing thermodynamics",
abstract = "Plastic deformation by grain boundary sliding in superplastic alloys is described by a novel thermostatistical approach. The Gibbs free energy for cavity formation at moving grain boundaries is obtained. It equals the competition between the stored energy at the boundaries and the energy dissipated by grain boundary sliding. The latter is approximated by an entropy term induced by moving dislocations to facilitate boundary displacement. Strength loss evolution is estimated from the cavity evolution rate. The theory describes superplastic behaviour of Zn22Al, Zn21Al2Cu and Mg3Al1Zn for various temperatures, strain rates, grain sizes, and specimen geometries. Transition maps are defined for finding the optimal conditions for achieving superplastic behaviour in terms of composition, temperature, geometry and strain rate.",
keywords = "Alloy design, Cavitation, Dislocations, Grain boundary sliding, Superplasticity, Themostatistics",
author = "Galindo-Nava, {E. I.} and G. Torres-Villase{\~n}or and Rivera-D{\'i}az-Del-Castillo, {P. E J}",
year = "2015",
month = apr,
day = "1",
doi = "10.1179/1743284714Y.0000000643",
language = "English",
volume = "31",
pages = "677--687",
journal = "Materials Science and Technology (United Kingdom)",
issn = "0267-0836",
publisher = "Taylor and Francis Ltd.",
number = "6",

}

RIS

TY - JOUR

T1 - Engineering grain boundary sliding and cavitation effects in superplastic alloys employing thermodynamics

AU - Galindo-Nava, E. I.

AU - Torres-Villaseñor, G.

AU - Rivera-Díaz-Del-Castillo, P. E J

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Plastic deformation by grain boundary sliding in superplastic alloys is described by a novel thermostatistical approach. The Gibbs free energy for cavity formation at moving grain boundaries is obtained. It equals the competition between the stored energy at the boundaries and the energy dissipated by grain boundary sliding. The latter is approximated by an entropy term induced by moving dislocations to facilitate boundary displacement. Strength loss evolution is estimated from the cavity evolution rate. The theory describes superplastic behaviour of Zn22Al, Zn21Al2Cu and Mg3Al1Zn for various temperatures, strain rates, grain sizes, and specimen geometries. Transition maps are defined for finding the optimal conditions for achieving superplastic behaviour in terms of composition, temperature, geometry and strain rate.

AB - Plastic deformation by grain boundary sliding in superplastic alloys is described by a novel thermostatistical approach. The Gibbs free energy for cavity formation at moving grain boundaries is obtained. It equals the competition between the stored energy at the boundaries and the energy dissipated by grain boundary sliding. The latter is approximated by an entropy term induced by moving dislocations to facilitate boundary displacement. Strength loss evolution is estimated from the cavity evolution rate. The theory describes superplastic behaviour of Zn22Al, Zn21Al2Cu and Mg3Al1Zn for various temperatures, strain rates, grain sizes, and specimen geometries. Transition maps are defined for finding the optimal conditions for achieving superplastic behaviour in terms of composition, temperature, geometry and strain rate.

KW - Alloy design

KW - Cavitation

KW - Dislocations

KW - Grain boundary sliding

KW - Superplasticity

KW - Themostatistics

U2 - 10.1179/1743284714Y.0000000643

DO - 10.1179/1743284714Y.0000000643

M3 - Journal article

AN - SCOPUS:84921722537

VL - 31

SP - 677

EP - 687

JO - Materials Science and Technology (United Kingdom)

JF - Materials Science and Technology (United Kingdom)

SN - 0267-0836

IS - 6

ER -