Evolution of microstructural parameters during cycling of NiTi and their effect on mechanical and thermal memory

Wagner, M.; Frenzel, J.; Eggeler, G.

Evolution of microstructural parameters during cycling of NiTi and their effect on mechanical and thermal memory (bibtex)

by M. Wagner, J. Frenzel, G. Eggeler

Abstract:

NiTi shape memory alloys (SMAs) possess thermal and mechanical memory associated with the 1- or 2-way effect and pseudoelasticity (PE). These effects are exploited by exposing the material to heating-cooling and/or loading-unloading cycles. This thermal and/or mechanical loading results in microstructural changes which lead to a decrease of SM-effects which we refer to as functional fatigue. In this paper, we review various phenomena in functional fatigue, and we present some examples which illustrate the importance of functional fatigue in engineering and medical technology.

Reference:

Wagner, M., Frenzel, J. and Eggeler, G.: Evolution of microstructural parameters during cycling of NiTi and their effect on mechanical and thermal memory, Proc. of SMST 2004, 103-109.

Bibtex Entry:

@InProceedings{Wagnerb,
  Title                    = {{Evolution of microstructural parameters during cycling of NiTi and their effect on mechanical and thermal memory}},
  Author                   = {Wagner, M. and Frenzel, J. and Eggeler, G.},
  Booktitle                = {Proc. of SMST 2004},
  Year                     = {2004},
  Pages                    = {103--109},

  Abstract                 = {NiTi shape memory alloys (SMAs) possess thermal and mechanical memory associated with the 1- or 2-way effect and pseudoelasticity (PE). These effects are exploited by exposing the material to heating-cooling and/or loading-unloading cycles. This thermal and/or mechanical loading results in microstructural changes which lead to a decrease of SM-effects which we refer to as functional fatigue. In this paper, we review various phenomena in functional fatigue, and we present some examples which illustrate the importance of functional fatigue in engineering and medical technology.}
}