Computer simulation of microstructural evolution in Ni-rich TiNi shape memory alloys under applied stresses

D. Y. Li, Long-qing Chen

Research output: Contribution to conferencePaper

Abstract

Coherent Ti 11 Ni 14 precipitation in TiNi shape memory alloys and its variation under applied stresses were investigated using a diffuse-interface phase-field model. In this model, the structural difference between the precipitate phase and the matrix as well as the orientational difference between precipitate variants are distinguished by structural field variables, whereas the compositional difference between the precipitate phase and the matrix is distinguished by a concentration field variable. The temporal variation of the field variables is determined by solving the Ginzburg-Landau equations and the Cahn-Hilliard equation. Precipitate morphologies and their variation under strain-constraints were studied.

Original languageEnglish (US)
Pages109-118
Number of pages10
StatePublished - Jan 1 1998
EventProceedings of the 1998 TMS Annual Meeting - San Antonio, TX, USA
Duration: Feb 15 1998Feb 19 1998

Other

OtherProceedings of the 1998 TMS Annual Meeting
CitySan Antonio, TX, USA
Period2/15/982/19/98

Fingerprint

Microstructural evolution
shape memory alloys
Shape memory effect
Precipitates
precipitates
computerized simulation
Computer simulation
Phase interfaces
Landau-Ginzburg equations
matrices

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Cite this

Li, D. Y., & Chen, L. (1998). Computer simulation of microstructural evolution in Ni-rich TiNi shape memory alloys under applied stresses. 109-118. Paper presented at Proceedings of the 1998 TMS Annual Meeting, San Antonio, TX, USA, .
Li, D. Y. ; Chen, Long-qing. / Computer simulation of microstructural evolution in Ni-rich TiNi shape memory alloys under applied stresses. Paper presented at Proceedings of the 1998 TMS Annual Meeting, San Antonio, TX, USA, .10 p.
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Li, DY & Chen, L 1998, 'Computer simulation of microstructural evolution in Ni-rich TiNi shape memory alloys under applied stresses' Paper presented at Proceedings of the 1998 TMS Annual Meeting, San Antonio, TX, USA, 2/15/98 - 2/19/98, pp. 109-118.

Computer simulation of microstructural evolution in Ni-rich TiNi shape memory alloys under applied stresses. / Li, D. Y.; Chen, Long-qing.

1998. 109-118 Paper presented at Proceedings of the 1998 TMS Annual Meeting, San Antonio, TX, USA, .

Research output: Contribution to conferencePaper

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Li DY, Chen L. Computer simulation of microstructural evolution in Ni-rich TiNi shape memory alloys under applied stresses. 1998. Paper presented at Proceedings of the 1998 TMS Annual Meeting, San Antonio, TX, USA, .