Elastisches Deformationsverhalten und Gefügeentwicklung von Einkristall-Nickel-Nanodrähten im Zugversuch entlang der [0 0 1]-Richtung

Translated title of the contribution: Elastic deformation behavior and microstructure evolution of single crystal nickel nanowire in tensile test along [0 0 1] orientation

S. Ma, J. Zhang*, P. Li, Y. Zhang, H. Jin, W. Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Elastic deformation behavior and microstructure evolution of single crystal nickel nanowire in tensile test have been investigated using molecular dynamics simulations. When the temperature is above 300 K, the deformation of nanowire is inhomogeneous in the elastic stage. It can generate a kind of (body-centered cubic)-like structure within the material to guide the elastic deformation, rather than the uniform deformation of all the atoms. The (body-centered cubic)-like structure will transform to be a body-centered cubic structure gradually with the increasing of strain and will revert to be a face-centered cubic structure when the twin crystal appears. The formation of (body-centered cubic)-like structure could reduce the density of the material to resist deformation. Besides, the (body-centered cubic)-like structure increase with increasing of strain or temperature, and they will gather together to reduce the interface energy. Our conclusion also can be proved by the radial distribution functions g(r).

Translated title of the contributionElastic deformation behavior and microstructure evolution of single crystal nickel nanowire in tensile test along [0 0 1] orientation
Original languageGerman
Pages (from-to)1158-1169
Number of pages12
JournalMaterialwissenschaft und Werkstofftechnik
Volume49
Issue number10
DOIs
Publication statusPublished - 2018 Oct
Externally publishedYes

Keywords

  • elastic deformation
  • molecular dynamics
  • phase transformation
  • Single crystal nickel nanowire
  • tensile test

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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