A modified embedded-atom method interatomic potential for the Fe-H system
SCIE
SCOPUS
- Title
- A modified embedded-atom method interatomic potential for the Fe-H system
- Authors
- Lee, BJ; Jang, JW
- Date Issued
- 2007-12
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- A modified embedded-atom method (MEAM) interatomic potential for the Fe-H binary system has been developed using previously developed MEAM potentials of Fe and H. The potential parameters were determined by fitting to experimental data on the dilute heat of solution of hydrogen in body-centered cubic (bcc) and face-centered cubic (fcc) Fe, the vacancy-hydrogen binding energy in bcc Fe, and to a first-principles calculation for the lattice parameter and bulk modulus of a hypothetical NaCl-type FeH. The potential accurately reproduces the known physical properties of hydrogen as an interstitial solute element in bee and fcc Fe. The applicability of the potential to atomistic approaches for investigating interactions between hydrogen atoms and other defects such as vacancies, dislocations and grain boundaries, and also for investigating the effects of hydrogen on various deformation and mechanical behaviors of iron is demonstrated. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
- Keywords
- modified embedded-atom method; iron-hydrogen alloys; atomistic simulation; molecular dynamics; lattice defect; LATTICE-DEFECTS; AB-INITIO; ALPHA-FE; C SYSTEM; HYDROGEN; METALS; IRON; NICKEL; CARBON; IMPURITIES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/108104
- DOI
- 10.1016/j.actamat.2007.08.041
- ISSN
- 1359-6454
- Article Type
- Article
- Citation
- ACTA MATERIALIA, vol. 55, no. 20, page. 6779 - 6788, 2007-12
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- There are no files associated with this item.
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