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Kinetic model of thermoelastic martensite transformation in NiTi and NiMn based shape memory alloys

Book ·
OSTI ID:479314
; ; ;  [1]
  1. Florida International Univ., Miami, FL (United States). Dept. of Mechanical Engineering
A new, quantitative model was developed to describe the martensite transformation kinetics of thermoelastic shape memory alloys (SMAs). In addition, a series of experiments were conducted to study the kinetics of thermoelastic martensite transformation in four SMA systems: NiTi, NiTi-15at%Hf, NiTi-20at%Zr and NiMn-7.5at%Ti alloys. Comparisons between data of the kinetic of martensite transformation with the present theoretic models show that the proposed model is in good agreement and concurs with the experimental data. Also, a comparison of data from the proposed model with data from existing kinetic models, such as Liang`s and Magee`s indicates that the proposed model can better describe the experimental data, including the relationship between d{xi}(T)/dT and {xi}, and d{xi}(T)/dT and T.
OSTI ID:
479314
Report Number(s):
CONF-951155--; ISBN 1-55899-301-0
Country of Publication:
United States
Language:
English

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