+Advanced Search
Molecular dynamics simulations of nanometric cutting process of single crystal γ - TiAl alloy
Author:
Affiliation:

LanZhou University Of Technology

Clc Number:

TH161

Fund Project:

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    In this study, molecular dynamics simulations are employed to study the nanometric machining process of single crystal γ - TiAl alloy. The influences of different cutting speeds and depths on nanometric cutting process of single crystal γ - TiAl alloy are?studied by?molecular dynamics modeling, calculation and analysis.?The results show that the accumulated volume of chips increases with the cutting depth increases in nano-cutting process, at the same time the atoms in the chip stack are tighter and the dislocation density is increased; however the dislocation density decreased with the cutting speeds increases. In a certain cutting depth and speeds range, in front of the tool will produce "V"-type dislocation ring of the cutting process, temperature and potential energy of the workpiece will increased correspondingly. In particular, when the cutting speed is 400m/s, there is no atomic misalignment on the cutting surface in front of the tool.

    Reference
    Related
    Cited by
Get Citation

[fengruicheng, qiaohaiyang. Molecular dynamics simulations of nanometric cutting process of single crystal γ - TiAl alloy[J]. Rare Metal Materials and Engineering,2019,48(5):1559~1566.]
DOI:10.12442/j. issn.1002-185X.20171010

Copy
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:November 08,2017
  • Revised:April 12,2018
  • Adopted:April 26,2018
  • Online: June 04,2019
  • Published: