Effects of local structure on helium bubble growth in bulk and at grain boundaries of bcc iron: A molecular dynamics study

Yang, L.; Gao, F.; Kurtz, R. J.; Zu, X. T.; Peng, S. M.; Long, X. G.; Zhou, X. S.

doi:10.1016/j.actamat.2015.06.055

Title: Effects of local structure on helium bubble growth in bulk and at grain boundaries of bcc iron: A molecular dynamics study

Full Record
Other Related Research

Authors:: Yang, L.; Gao, F.; Kurtz, R. J.; Zu, X. T.; Peng, S. M.; Long, X. G.; Zhou, X. S.

Publication Date:: Tue Sep 01 00:00:00 EDT 2015

Sponsoring Org.:: USDOE Office of Science (SC), Fusion Energy Sciences (FES)

OSTI Identifier:: 1254760

Grant/Contract Number:: AC06-76RLO 1830

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Acta Materialia

Additional Journal Information:: Journal Name: Acta Materialia Journal Volume: 97 Journal Issue: C; Journal ID: ISSN 1359-6454

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Citation Formats


                    Yang, L., Gao, F., Kurtz, R. J., Zu, X. T., Peng, S. M., Long, X. G., and Zhou, X. S. Effects of local structure on helium bubble growth in bulk and at grain boundaries of bcc iron: A molecular dynamics study.  United States: N. p., 2015. 
Web.  doi:10.1016/j.actamat.2015.06.055.

Copy to clipboard


                    Yang, L., Gao, F., Kurtz, R. J., Zu, X. T., Peng, S. M., Long, X. G., & Zhou, X. S. Effects of local structure on helium bubble growth in bulk and at grain boundaries of bcc iron: A molecular dynamics study.  United States.  https://doi.org/10.1016/j.actamat.2015.06.055

Copy to clipboard


                    Yang, L., Gao, F., Kurtz, R. J., Zu, X. T., Peng, S. M., Long, X. G., and Zhou, X. S. Tue .  
"Effects of local structure on helium bubble growth in bulk and at grain boundaries of bcc iron: A molecular dynamics study".  United States.  https://doi.org/10.1016/j.actamat.2015.06.055.

Copy to clipboard


                    
@article{osti_1254760,

  title        = {Effects of local structure on helium bubble growth in bulk and at grain boundaries of bcc iron: A molecular dynamics study},

  author       = {Yang, L. and Gao, F. and Kurtz, R. J. and Zu, X. T. and Peng, S. M. and Long, X. G. and Zhou, X. S.},

  abstractNote = {},

  doi          = {10.1016/j.actamat.2015.06.055},

  journal      = {Acta Materialia},

  number       = C,

  volume       = 97,

  place        = {United States},

  year         = {Tue Sep 01 00:00:00 EDT 2015},

  month        = {Tue Sep 01 00:00:00 EDT 2015}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Publisher's Version of Record
https://doi.org/10.1016/j.actamat.2015.06.055

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 46 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Effects of local structure on helium bubble growth in bulk and at grain boundaries of bcc iron: A molecular dynamics study

Journal Article Yang, Li ; Gao, Fei ; Kurtz, Richard J. ; ... - Acta Materialia

The nucleation and growth of helium (He) bubbles in the bulk and at Σ3 <110> {112} and Σ73b <110> {661} grain boundaries (GBs) in bcc iron have been investigated using molecular dynamics simulations. The results show that a 1/2 <111> {111} dislocation loop is formed with the sequential collection of <111> interstitial crowdions at the periphery of the He cluster and is eventually emitted from the He cluster. Insertion of 45 He atoms into a He cluster leads to the formation of a 1/2 <111> dislocation loop in Σ3 GB. It is of interest to notice that the transition ofmore »« less
https://doi.org/10.1016/j.actamat.2015.06.055
New helium bubble growth mode at a symmetric grain-boundary in tungsten: accelerated molecular dynamics study

Journal Article Liu, X. -Y. ; Uberuaga, B. P. ; Perez, D. ; ... - Materials Research Letters

This work, with an emphasis on helium irradiation rates appropriate for fusion-plasma conditions, advances the understanding of helium evolution at grain boundaries in W, an important consideration in the understanding of W as a plasma-facing component. Using accelerated molecular dynamics, helium bubble nucleation and growth at a symmetric Σ5[100](310) tilt grain-boundary in W is studied. The simulations reveal that the growth mode associated with bubble growth at the grain-boundary leads to a suppression of the helium supply to the bubble and hence to arrested growth. Such an unconventional bubble growth mode may dominate in materials with a high density ofmore » sinks.« less
Cited by 18
https://doi.org/10.1080/21663831.2018.1494637

Full Text Available
Modeling the effects of helium-vacancy clusters on the stress-strain response of a grain boundary in iron by a mechanistic finite element approach informed by molecular dynamics data

Journal Article Nguyen, Ba Nghiep ; Kurtz, Richard J. ; Gao, Fei - Journal of Nuclear Materials
Cited by 3
https://doi.org/10.1016/j.jnucmat.2019.151766
Molecular dynamics studies of helium bubble effects on grain boundary fracture vulnerabilities in an Fe₇₀Ni₁₁Cr₁₉–1%H austenitic stainless steel

Journal Article Zhou, X. W. ; Foster, M. E. ; Sills, R. B. - Journal of Nuclear Materials

Comprehensive molecular dynamics tensile test simulations have been performed to study the delamination processes of seven different grain boundaries / cleavage planes (Σ1{111}, Σ3{111}, Σ5{100}, Σ7{111}, Σ9{411}, Σ11{311}, and R{100}/{411}) containing a helium bubble. Combinations of a variety of conditions are explored including different strain rates, system dimensions, bubble density, bubble radius, bubble pressure, and temperature. We found that in general, grain boundaries absorb less energies with decreasing strain rate but increasing bubble areal density, bubble pressure, bubble radius, and temperature. The propensity of grain boundary delamination is sensitive to grain boundary type: The random grain boundary R{100}/{411} is onemore »« less
https://doi.org/10.1016/j.jnucmat.2022.153753

Full Text Available
Molecular Dynamics Studies of Helium Bubble Effects on Grain Boundary Fracture in Fe70Ni11Cr19-1%H Austenitic Stainless Steel.

Conference Zhou, Xiaowang ; Foster, Michael ; Sills, Ryan

Abstract not provided.
https://doi.org/10.2172/2006031

Full Text Available

Similar Records