Multicomponent superelastic alloy

4% linear elasticity

First bulk crystalline metal achieving strictly linear, hysteresis-free elastic strain up to 4%, combining high energy storage density for high-precision actuation and mechanical energy storage.

Song, Chao · Chao, Wang · Bin, Chen · Chen, Haiyang · Yin, Tao · Zhou, Zaifeng · Niu, Yurong · Wang, Yadong · Sun, Liying · Nie, Zhihua · Hao, Shijie · Wang, Yandong · Cong, Daoyong

Materials Today 2025

Specifications

Linear elastic strain

{'zh': '约4', 'en': '~4'} %

energy storage capacity

{'zh': '约48', 'en': '~48'} MJ/m3

Advantages

Cyclically stable for 100,000 loading-unloading cycles

Achievable in the broad temperature range 300-523 K