Molecular dynamics simulation of interaction between screw dislocation and copper precipitate in iron

Akiyuki Takahashi, Yuji Aoki, Masanori Kikuchi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

This paper provides the results of the MD simulations of the interaction between a screw dislocation and a copper precipitate in iron. From the results, the screw dislocation has an attractive interaction with the copper precipitate. Also, the dependence of the Critical Resolved Shear Stress (CRSS) for the screw dislocation to break away from the copper precipitate on the size of the precipitate and temperature is studied. Finally, the CRSS obtained by the MD simulations is modeled statistically using a Russel-Brown model. Then we found that an addition of the Peierls stress, which is calculated by the MD simulations, to the Russel-Brown model gives a good prediction of the CRSS.

Original languageEnglish
Title of host publicationAdvances in Fracture and Materials Behavior - Selected, peer reviewed papers of the Seventh International Conference on Fracture and Strength of Solids (FEOFS2007)
PublisherTrans Tech Publications
Pages895-900
Number of pages6
ISBN (Print)0878493999, 9780878493999
DOIs
Publication statusPublished - 2008
Event7th International Conference on Fracture and Strength of Solids, FEOFS 2007 - Urumqi, China
Duration: 27 Aug 200729 Aug 2007

Publication series

NameAdvanced Materials Research
Volume33-37 PART 2
ISSN (Print)1022-6680

Conference

Conference7th International Conference on Fracture and Strength of Solids, FEOFS 2007
Country/TerritoryChina
CityUrumqi
Period27/08/0729/08/07

Keywords

  • Critical resolved shear stress
  • Molecular dynamics
  • Precipitate
  • Screw dislocation
  • Statistical modeling

Fingerprint

Dive into the research topics of 'Molecular dynamics simulation of interaction between screw dislocation and copper precipitate in iron'. Together they form a unique fingerprint.

Cite this