A polymer-like ultrahigh-strength metal alloy.

ABSTRACT: Futuristic technologies such as morphing aircrafts and super-strong artificial muscles depend on metal alloys being as strong as ultrahigh-strength steel yet as flexible as a polymer^1-3. However, achieving such 'strong yet flexible' alloys has proven challenging^4-9 because of the inevitable trade-off between strength and flexibility^5,8,10. Here we report a Ti-50.8 at.% Ni strain glass alloy showing a combination of ultrahigh yield strength of σ_y ≈ 1.8 GPa and polymer-like ultralow elastic modulus of E ≈ 10.5 GPa, together with super-large rubber-like elastic strain of approximately 8%. As a result, it possesses a high flexibility figure of merit of σ_y/E ≈ 0.17 compared with existing structural materials. In addition, it can maintain su

SUBMITTER: Xu Z 

PROVIDER: S-EPMC11410662 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature