Microstructure based modeling of the strain rate history effect in wear resistant Hadfield steels

Matti Lindroos, Anssi Laukkanen, Georges Cailletaud, Veli Tapani Kuokkala

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

The strain rate history dependency of Hadfield steel is investigated by numerical modeling. A crystal plasticity model is employed to study the effect of strain rate jump/drop on the material's strain hardening and twinning propensity. Single crystal orientations are first examined to assess the importance of the strain rate and its history effects. Then a representative 3D microstructure aggregate is used to investigate the effects of strain rate history in a polycrystalline structure. It was found that strain rate affects the evolution of deformation twins in the microstructure, generating a strain rate history dependent deformation and hardening response. A Hadfield steel used in mineral crushing conditions is also characterized to provide details of the deformation and hardening behavior of the material under realistic low/high strain rate loading conditions. The importance of strain rate changes to strengthening and increasing the hardness of the polycrystal microstructure is discussed and considered from the wear resistance point of view.

Original languageEnglish
Pages (from-to)56-66
Number of pages11
JournalWear
Volume396-397
DOIs
Publication statusPublished - 15 Feb 2018
MoE publication typeA1 Journal article-refereed

Fingerprint

Steel
strain rate
Strain rate
Wear of materials
histories
steels
microstructure
Microstructure
hardening
Hardening
crushing
strain hardening
Twinning
Polycrystals
Crushing
polycrystals
twinning
wear resistance
Strain hardening
plastic properties

Keywords

  • Austenitic manganese steel
  • Crystal plasticity
  • Deformation twinning
  • Microstructure based modeling
  • Strain rate history
  • Twinning induced plasticity

Cite this

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title = "Microstructure based modeling of the strain rate history effect in wear resistant Hadfield steels",
abstract = "The strain rate history dependency of Hadfield steel is investigated by numerical modeling. A crystal plasticity model is employed to study the effect of strain rate jump/drop on the material's strain hardening and twinning propensity. Single crystal orientations are first examined to assess the importance of the strain rate and its history effects. Then a representative 3D microstructure aggregate is used to investigate the effects of strain rate history in a polycrystalline structure. It was found that strain rate affects the evolution of deformation twins in the microstructure, generating a strain rate history dependent deformation and hardening response. A Hadfield steel used in mineral crushing conditions is also characterized to provide details of the deformation and hardening behavior of the material under realistic low/high strain rate loading conditions. The importance of strain rate changes to strengthening and increasing the hardness of the polycrystal microstructure is discussed and considered from the wear resistance point of view.",
keywords = "Austenitic manganese steel, Crystal plasticity, Deformation twinning, Microstructure based modeling, Strain rate history, Twinning induced plasticity",
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Microstructure based modeling of the strain rate history effect in wear resistant Hadfield steels. / Lindroos, Matti; Laukkanen, Anssi; Cailletaud, Georges; Kuokkala, Veli Tapani.

In: Wear, Vol. 396-397, 15.02.2018, p. 56-66.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Microstructure based modeling of the strain rate history effect in wear resistant Hadfield steels

AU - Lindroos, Matti

AU - Laukkanen, Anssi

AU - Cailletaud, Georges

AU - Kuokkala, Veli Tapani

PY - 2018/2/15

Y1 - 2018/2/15

N2 - The strain rate history dependency of Hadfield steel is investigated by numerical modeling. A crystal plasticity model is employed to study the effect of strain rate jump/drop on the material's strain hardening and twinning propensity. Single crystal orientations are first examined to assess the importance of the strain rate and its history effects. Then a representative 3D microstructure aggregate is used to investigate the effects of strain rate history in a polycrystalline structure. It was found that strain rate affects the evolution of deformation twins in the microstructure, generating a strain rate history dependent deformation and hardening response. A Hadfield steel used in mineral crushing conditions is also characterized to provide details of the deformation and hardening behavior of the material under realistic low/high strain rate loading conditions. The importance of strain rate changes to strengthening and increasing the hardness of the polycrystal microstructure is discussed and considered from the wear resistance point of view.

AB - The strain rate history dependency of Hadfield steel is investigated by numerical modeling. A crystal plasticity model is employed to study the effect of strain rate jump/drop on the material's strain hardening and twinning propensity. Single crystal orientations are first examined to assess the importance of the strain rate and its history effects. Then a representative 3D microstructure aggregate is used to investigate the effects of strain rate history in a polycrystalline structure. It was found that strain rate affects the evolution of deformation twins in the microstructure, generating a strain rate history dependent deformation and hardening response. A Hadfield steel used in mineral crushing conditions is also characterized to provide details of the deformation and hardening behavior of the material under realistic low/high strain rate loading conditions. The importance of strain rate changes to strengthening and increasing the hardness of the polycrystal microstructure is discussed and considered from the wear resistance point of view.

KW - Austenitic manganese steel

KW - Crystal plasticity

KW - Deformation twinning

KW - Microstructure based modeling

KW - Strain rate history

KW - Twinning induced plasticity

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JO - Wear

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