Molecular dynamics simulations for a nickel metal with an edge dislocation and some impurities

Takayuki Sakai, Hideyuki Murakami, Hiroshi Harada

研究成果: Conference contribution

抜粋

Examination of dislocation behavior in the level of atomic scale is one of effective approaches for understanding inelastic deformation behavior of engineering materials. In this study, a molecular dynamics code incorporated with a modified EAM (MEAM) potential proposed by Baskes was developed to investigate the dislocation behavior in nickel alloys. As verification of the code, molecular dynamics simulations for a nickel metal containing with an edge dislocation and an impurity element were carried out. Consequently, it was shown that the dislocation behavior had some temperature dependences in terms of dislocation velocity and Peiers stress. Then, it was demonstrated that the edge dislocation was made transferred under the influence of some kinds of element that seemed to be effective for solid-solution strengthening of nickel alloys. Therefore, it was proved that the MEAM potential was effective for at least qualitative evaluation of dislocation behavior.

元の言語English
ホスト出版物のタイトルProceedings of Asian Simulation Conference; System Simulation and Scientific Computing (Shanghai)
編集者C. Zongij, F. Minrui, H. Guosen, P. Xiaoyuan, X. Guangleng, C. Zongji, F. Minrui, H. Guosen, P. Xiaoyuan, X. Guangleng
ページ239-243
ページ数5
出版物ステータスPublished - 2002 12 1
外部発表Yes
イベントProceedings of Asian Simulation Conference/the 5th International Conference on: System Simulation and Scientific Computing (Shanghai) - Shanghai, China
継続期間: 2002 11 32002 11 6

出版物シリーズ

名前Proceedings of Asian Simulation Conference; System Simulation and Scientific Computing (Shanghai)

Other

OtherProceedings of Asian Simulation Conference/the 5th International Conference on: System Simulation and Scientific Computing (Shanghai)
China
Shanghai
期間02/11/302/11/6

ASJC Scopus subject areas

  • Modelling and Simulation

フィンガープリント Molecular dynamics simulations for a nickel metal with an edge dislocation and some impurities' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Sakai, T., Murakami, H., & Harada, H. (2002). Molecular dynamics simulations for a nickel metal with an edge dislocation and some impurities. : C. Zongij, F. Minrui, H. Guosen, P. Xiaoyuan, X. Guangleng, C. Zongji, F. Minrui, H. Guosen, P. Xiaoyuan, & X. Guangleng (版), Proceedings of Asian Simulation Conference; System Simulation and Scientific Computing (Shanghai) (pp. 239-243). (Proceedings of Asian Simulation Conference; System Simulation and Scientific Computing (Shanghai)).