LAUSR

Elastocaloric cooling stability is an essential factor of solid‐state refrigeration to become a promising candidate in replacing the conventional vapor compression technology. Herein, Ni53.5Fe19.9Ga26.6 foam with 53% porosity is fabricated by a replication casting technique and its elastocaloric properties compared with Ni53Fe19.4Ga27.6 bulk alloy. NiFeGa foam expresses reversible superelasticity with strain ≈3.9% above austenite finishing temperature and also exhibits an adiabatic temperature change of 2.8 K smaller than its bulk counterpart 5.8 K. The compressive cyclic test reveals that foam shows better cyclic performance up to 100 cycles over bulk sample under the same loading effect. The enhanced cyclic stability in foam achieves due to pores and narrow hysteresis energy loss.