Tension - Compression Asymmetry in Co49Ni21Ga30 High-Temperature Shape Memory Alloy Single Crystals Conference Paper uri icon


  • This paper reports on the tension-compression asymmetry of [001]-oriented Co49Ni21Ga30 single crystals at elevated temperatures. Maximum strains of -4.8 % and 8.6 % in compression and tension, respectively, were found. A linear Clausius-Clapeyron relationship was observed for both stress-states where the smaller slope in tension resulted in a significant increase of the phase transformation temperatures with stress, which reached 180 C under a constant stress level of 150 MPa. In addition, the material demonstrated a large pseudoelastic temperature range of about 300 C under both stress state conditions. The results in this study unequivocally indicate the potential of these alloys for applications where elevated temperatures and stress levels prevail.

published proceedings


author list (cited authors)

  • Niendorf, T., Dadda, J., Lackmann, J., Monroe, J. A., Karaman, I., Panchenko, E., Karaca, H. E., & Maier, H. J.

citation count

  • 10

complete list of authors

  • Niendorf, T||Dadda, J||Lackmann, J||Monroe, JA||Karaman, I||Panchenko, E||Karaca, HE||Maier, HJ

publication date

  • March 2013