Abstract
The β relaxation is an intrinsic and crucial feature of metallic glasses (MGs). An interesting puzzle is that why the β relaxation exhibits different behaviors in different MGs. Here, a comprehensive studying strategy through differential scanning calorimetry is designed to evaluate the different β relaxations in La-based MGs. This method is based on the onset temperature and activation energy of sub-Tg enthalpy relaxation (Tonset and Eonset), the activation energy of glass transition (Eg) and the critical annealing temperature (Ta,C). Ta,C is the annealing temperature where the dynamic transition from β to α relaxation is observed. The origin of this transition resides in the different growth rate of medium range orders. The pronounced β relaxations are always associated with MGs exhibiting both larger Eg/Eonset and smaller Tonset/Ta,C. This finding provides an alternative avenue to evaluate the decoupling degree between α and β relaxations in MGs.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
