Details

Autor(en) / Beteiligte

• Chen, L.
• Li, L.Q.
• Gong, H.R.
• Fan, J.L.
• Li, Wei

Titel

Irradiation effect on mechanical properties of tungsten from molecular dynamic simulation

Ist Teil von

• Materials letters, 2019-04, Vol.241, p.27-30

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •Irradiation has quite different effects on mechanical properties of monocrystalline and nanocrystalline W.•Nanocrystalline W with smaller nanoparticles possesses higher tensile strength under irradiation.•The derived results could provide a deep understanding of irradiation effects on monocrystalline and nanocrystalline W. Molecular dynamic simulation has been conducted to investigate the irradiation effects on mechanical properties of monocrystalline and nanocrystalline W samples. It is found that irradiation has quite different effects on mechanical properties of monocrystalline and nanocrystalline W, i.e., the ideal tensile strength of monocrystalline and nanocrystalline W decreases and increases with the increase of irradiation energy, respectively. In addition, nanocrystalline W with smaller nanoparticles possesses higher tensile strength under irradiation, which is fundamentally due to more grain boundaries absorbed with more interstitial atoms. The derived results could provide a deep understanding of irradiation effects on monocrystalline and nanocrystalline W.