Computational investigation of superalloy persistent slip bands formation

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

doi:10.1109/IConAC.2015.7313999

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 proceeding › Conference contribution

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.

Original language	English
Title of host publication	2015 21st International Conference on Automation and Computing: Automation, Computing and Manufacturing for New Economic Growth, ICAC 2015
Place of Publication	New York
Publisher	IEEE
ISBN (Electronic)	978-0-9926-8011-4
ISBN (Print)	9780992680107
DOIs	https://doi.org/10.1109/IConAC.2015.7313999
Publication status	Published - 2 Nov 2015

Keywords

Persistent slip bands
PSB
fatigue
strain
load modeling
stress
FCC
Nickel
lattices
Molecular Dynamics
Comput ational Simulation
Superalloys
Persistent Slip Bands

Documents and Links

10.1109/IConAC.2015.7313999

Cite this

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title = "Computational investigation of superalloy persistent slip bands formation",

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.",

keywords = "Persistent slip bands, PSB, fatigue, strain, load modeling, stress, FCC, Nickel, lattices, Molecular Dynamics, Comput ational Simulation, Superalloys, Persistent Slip Bands",

author = "Jianfeng Huang and Zhonglai Wang and Yuanxin Luo and Yun Li and Erfu Yang and Yi Chen",

year = "2015",

month = nov,

day = "2",

doi = "10.1109/IConAC.2015.7313999",

language = "English",

isbn = "9780992680107",

booktitle = "2015 21st International Conference on Automation and Computing: Automation, Computing and Manufacturing for New Economic Growth, ICAC 2015",

publisher = "IEEE",

}

Computational investigation of superalloy persistent slip bands formation. / Huang, Jianfeng; Wang, Zhonglai ; Luo, Yuanxin et al.

2015 21st International Conference on Automation and Computing: Automation, Computing and Manufacturing for New Economic Growth, ICAC 2015. New York : IEEE, 2015.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Computational investigation of superalloy persistent slip bands formation

AU - Huang, Jianfeng

AU - Wang, Zhonglai

AU - Luo, Yuanxin

AU - Li, Yun

AU - Yang, Erfu

AU - Chen, Yi

PY - 2015/11/2

Y1 - 2015/11/2

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.

KW - Persistent slip bands

KW - PSB

KW - fatigue

KW - strain

KW - load modeling

KW - stress

KW - FCC

KW - Nickel

KW - lattices

KW - Molecular Dynamics

KW - Comput ational Simulation

KW - Superalloys

KW - Persistent Slip Bands

UR - http://csee.essex.ac.uk/ICAC2015/

U2 - 10.1109/IConAC.2015.7313999

DO - 10.1109/IConAC.2015.7313999

M3 - Conference contribution

SN - 9780992680107

BT - 2015 21st International Conference on Automation and Computing: Automation, Computing and Manufacturing for New Economic Growth, ICAC 2015

PB - IEEE

CY - New York

ER -

Computational investigation of superalloy persistent slip bands formation

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Keywords

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