Computational investigation of superalloy persistent slip bands formation

Jianfeng Huang, Zhonglai Wang, Yuanxin Luo, Yun Li, Erfu Yang, Yi Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

Persistent slip bands (PSB) is the important and typical microstructure generated during fatigue crack initiation. Intensive works have been done to investigate the mechanisms of the formation of persistent slip bands in the past decade. In this paper, a molecular dynamics (MD) simulation associated with embedded atom model (EAM) is applied on the PSBs formation in nickel-base superalloys with different microstructure and temperature under tensile-tensile loadings. Simulation results show that PSBs formed within the γ phase by massive dislocations pile-up and propagation which can penetrate the grain. Also, the temperature will affect the material fatigue performance and blur PSBs appearance. The simulation results are in strong agreement with the experimental test results published before.

LanguageEnglish
Title of host publication2015 21st International Conference on Automation and Computing
Subtitle of host publicationAutomation, Computing and Manufacturing for New Economic Growth, ICAC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
DOIs
Publication statusPublished - 30 Oct 2015
Event21st International Conference on Automation and Computing, ICAC 2015 - Glasgow, United Kingdom
Duration: 11 Sep 201512 Sep 2015

Conference

Conference21st International Conference on Automation and Computing, ICAC 2015
CountryUnited Kingdom
CityGlasgow
Period11/09/1512/09/15

Fingerprint

Superalloy
Superalloys
Slip
Microstructure
Crack initiation
Piles
Molecular dynamics
Fatigue Crack
Crack Initiation
Nickel
Fatigue of materials
Dislocation
Atoms
Fatigue
Temperature
Molecular Dynamics Simulation
Computer simulation
Simulation
Propagation
Model

Keywords

  • computational simulations
  • molecular dynamics
  • persistent slip bands
  • superalloys

Cite this

Huang, J., Wang, Z., Luo, Y., Li, Y., Yang, E., & Chen, Y. (2015). Computational investigation of superalloy persistent slip bands formation. In 2015 21st International Conference on Automation and Computing: Automation, Computing and Manufacturing for New Economic Growth, ICAC 2015 [7313999] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IConAC.2015.7313999
Huang, Jianfeng ; Wang, Zhonglai ; Luo, Yuanxin ; Li, Yun ; Yang, Erfu ; Chen, Yi. / Computational investigation of superalloy persistent slip bands formation. 2015 21st International Conference on Automation and Computing: Automation, Computing and Manufacturing for New Economic Growth, ICAC 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
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abstract = "Persistent slip bands (PSB) is the important and typical microstructure generated during fatigue crack initiation. Intensive works have been done to investigate the mechanisms of the formation of persistent slip bands in the past decade. In this paper, a molecular dynamics (MD) simulation associated with embedded atom model (EAM) is applied on the PSBs formation in nickel-base superalloys with different microstructure and temperature under tensile-tensile loadings. Simulation results show that PSBs formed within the γ phase by massive dislocations pile-up and propagation which can penetrate the grain. Also, the temperature will affect the material fatigue performance and blur PSBs appearance. The simulation results are in strong agreement with the experimental test results published before.",
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Huang, J, Wang, Z, Luo, Y, Li, Y, Yang, E & Chen, Y 2015, Computational investigation of superalloy persistent slip bands formation. in 2015 21st International Conference on Automation and Computing: Automation, Computing and Manufacturing for New Economic Growth, ICAC 2015., 7313999, Institute of Electrical and Electronics Engineers Inc., 21st International Conference on Automation and Computing, ICAC 2015, Glasgow, United Kingdom, 11/09/15. https://doi.org/10.1109/IConAC.2015.7313999

Computational investigation of superalloy persistent slip bands formation. / Huang, Jianfeng; Wang, Zhonglai; Luo, Yuanxin; Li, Yun; Yang, Erfu; Chen, Yi.

2015 21st International Conference on Automation and Computing: Automation, Computing and Manufacturing for New Economic Growth, ICAC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7313999.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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T1 - Computational investigation of superalloy persistent slip bands formation

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AU - Chen, Yi

PY - 2015/10/30

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N2 - Persistent slip bands (PSB) is the important and typical microstructure generated during fatigue crack initiation. Intensive works have been done to investigate the mechanisms of the formation of persistent slip bands in the past decade. In this paper, a molecular dynamics (MD) simulation associated with embedded atom model (EAM) is applied on the PSBs formation in nickel-base superalloys with different microstructure and temperature under tensile-tensile loadings. Simulation results show that PSBs formed within the γ phase by massive dislocations pile-up and propagation which can penetrate the grain. Also, the temperature will affect the material fatigue performance and blur PSBs appearance. The simulation results are in strong agreement with the experimental test results published before.

AB - Persistent slip bands (PSB) is the important and typical microstructure generated during fatigue crack initiation. Intensive works have been done to investigate the mechanisms of the formation of persistent slip bands in the past decade. In this paper, a molecular dynamics (MD) simulation associated with embedded atom model (EAM) is applied on the PSBs formation in nickel-base superalloys with different microstructure and temperature under tensile-tensile loadings. Simulation results show that PSBs formed within the γ phase by massive dislocations pile-up and propagation which can penetrate the grain. Also, the temperature will affect the material fatigue performance and blur PSBs appearance. The simulation results are in strong agreement with the experimental test results published before.

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Huang J, Wang Z, Luo Y, Li Y, Yang E, Chen Y. Computational investigation of superalloy persistent slip bands formation. In 2015 21st International Conference on Automation and Computing: Automation, Computing and Manufacturing for New Economic Growth, ICAC 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7313999 https://doi.org/10.1109/IConAC.2015.7313999