Role of elastic strain energy in spheroidal precipitates revisited

Helmut J. Böhm; Gerald Zickler; Franz-Dieter Fischer; Jiří Svoboda

doi:10.1016/j.mechmat.2021.103781

Role of elastic strain energy in spheroidal precipitates revisited

Helmut J. Böhm, Gerald Zickler, Franz-Dieter Fischer, Jiří Svoboda

Chair of Mechanics (400)

Research output: Contribution to journal › Article › Research › peer-review

1 Citation (Scopus)

Abstract

Improving the treatment of thermodynamic modelling of precipitation kinetics makes it necessary to account for the stored elastic and interface energies of non-spherical strengthening particles. The existing kinetic concepts available for spherical precipitates can be directly adapted to spheroidal precipitates by introducing shape factors, thus approximating shapes differing from spheres. This paper provides shape factors for the stored elastic and interface energies over a wide range of aspect ratios as well as of elastic material properties.

Original language	English
Article number	103781
Number of pages	6
Journal	Mechanics of materials
Volume	155
Issue number	April
Early online date	2 Feb 2021
DOIs	https://doi.org/10.1016/j.mechmat.2021.103781
Publication status	Published - Apr 2021

Bibliographical note

Publisher Copyright:
© 2021 The Authors

Keywords

Precipitation
Misfit strain energy
Interface energy
Shape factors
Modelling thermodynamics
Phase transformation kinetics

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10.1016/j.mechmat.2021.103781

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title = "Role of elastic strain energy in spheroidal precipitates revisited",

abstract = "Improving the treatment of thermodynamic modelling of precipitation kinetics makes it necessary to account for the stored elastic and interface energies of non-spherical strengthening particles. The existing kinetic concepts available for spherical precipitates can be directly adapted to spheroidal precipitates by introducing shape factors, thus approximating shapes differing from spheres. This paper provides shape factors for the stored elastic and interface energies over a wide range of aspect ratios as well as of elastic material properties.",

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author = "B{\"o}hm, {Helmut J.} and Gerald Zickler and Franz-Dieter Fischer and Ji{\v r}{\'i} Svoboda",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2021",

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doi = "10.1016/j.mechmat.2021.103781",

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T1 - Role of elastic strain energy in spheroidal precipitates revisited

AU - Böhm, Helmut J.

AU - Zickler, Gerald

AU - Fischer, Franz-Dieter

AU - Svoboda, Jiří

PY - 2021/4

Y1 - 2021/4

N2 - Improving the treatment of thermodynamic modelling of precipitation kinetics makes it necessary to account for the stored elastic and interface energies of non-spherical strengthening particles. The existing kinetic concepts available for spherical precipitates can be directly adapted to spheroidal precipitates by introducing shape factors, thus approximating shapes differing from spheres. This paper provides shape factors for the stored elastic and interface energies over a wide range of aspect ratios as well as of elastic material properties.

AB - Improving the treatment of thermodynamic modelling of precipitation kinetics makes it necessary to account for the stored elastic and interface energies of non-spherical strengthening particles. The existing kinetic concepts available for spherical precipitates can be directly adapted to spheroidal precipitates by introducing shape factors, thus approximating shapes differing from spheres. This paper provides shape factors for the stored elastic and interface energies over a wide range of aspect ratios as well as of elastic material properties.

KW - Precipitation

KW - Misfit strain energy

KW - Interface energy

KW - Shape factors

KW - Modelling thermodynamics

KW - Phase transformation kinetics

KW - Precipitation

KW - Misfit strain energy

KW - Interface energy

KW - Shape factors

KW - Modelling thermodynamics

KW - Phase transformation kinetics

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DO - 10.1016/j.mechmat.2021.103781

M3 - Article

SN - 0167-6636

VL - 155

JO - Mechanics of materials

JF - Mechanics of materials

IS - April

M1 - 103781

ER -

Role of elastic strain energy in spheroidal precipitates revisited

Abstract

Bibliographical note

Keywords

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