Volume 21 Issue 2
Apr.  2006
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LUO Feng-hua, CHEN Jia-yan, LIU Lang-fei, Katsunari Oikawa, Kiyohito Ishida. Martensitic Transformation and Damping Capacity of Co41Ni33Al26 Alloy Ribbons Fabricated by Cold Rolling Method[J]. Development and Application of Materials, 2006, 21(2): 9-13,23. DOI: 10.19515/j.cnki.1003-1545.2006.02.003
Citation: LUO Feng-hua, CHEN Jia-yan, LIU Lang-fei, Katsunari Oikawa, Kiyohito Ishida. Martensitic Transformation and Damping Capacity of Co41Ni33Al26 Alloy Ribbons Fabricated by Cold Rolling Method[J]. Development and Application of Materials, 2006, 21(2): 9-13,23. DOI: 10.19515/j.cnki.1003-1545.2006.02.003
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Martensitic Transformation and Damping Capacity of Co41Ni33Al26 Alloy Ribbons Fabricated by Cold Rolling Method

  • 1. State Key Laboratory for powder metallurgy, Central south university, Changsha 410083, China;

  • 2. Central Iron and Steel Research Institute, Beijing 100081, China;

  • 3. Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan

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  • Received Date: September 27, 2005
  • Available Online: March 31, 2024
    Graphical Abstract
    • Abstract
  • Co41Ni33Al26 alloy ribbons with a thickness about 0.2mm were fabricated by hot rolling and cold rolling processes.After heattreated at 1350℃ for 5 hours and then water quenched, the structure of the ribbons matrix phase converted to bamboo-liked recrystallized large grains.Martensitic transformation and damping capacity of Co41Ni33Al26 alloy ribbons were investigated by means of differential scanning calorimetry (DSC) and dynamic mechanical spectroscopy (DMS) separately.It was found that the martensitic transformation temperature of 0.2mm thickness ribbons is about 45℃ higher than that of 1.5mm thickness plate.During cooling process, there is a damping peak appearing at the temperature from 140℃ to 25℃ which is obviously wider than its martensitic transformation temperature (121~78℃) measured by means of DSC.It is suggestsed that some stress-induced martensitic transformations took place.The damping capacity of Co41Ni33Al26 alloy ribbon is over 0.04 corresponding to a wide temperature range, indicating that the alloy is a new kind of promising damping material.
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