Abstract
Enhanced elastocaloric properties in a directionally solidified Ni55Mn18Ga26Ti1 alloy were achieved by combining composition tuning and microstructural control. Owing to the introduction of Ti and the microstructural feature with coarse columnar grains and strong <001>A preferred orientation, the thermal hysteresis and the stress hysteresis were successfully reduced to 4K and 16MPa, respectively. Large adiabatic temperature change of −6.2K was obtained on removing a low stress of 120MPa, resulting in the specific adiabatic temperature change of 51.7K/GPa. Moreover, the alloy demonstrated enhanced cyclability of elastocaloric effect up to 497 loading/unloading cycles and high coefficient of performance value of 25.6.
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 callDisclaimer: 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.
