Abstract

We describe a group of alloys that exhibit “super” properties, such as ultralow elastic modulus, ultrahigh strength, super elasticity, and super plasticity, at room temperature and that show Elinvar and Invar behavior. These “super” properties are attributable to a dislocation-free plastic deformation mechanism. In cold-worked alloys, this mechanism forms elastic strain fields of hierarchical structure that range in size from the nanometer scale to several tens of micrometers. The resultant elastic strain energy leads to a number of enhanced material properties.

Keywords

Materials sciencePlasticityDislocationInvarNanometreElasticity (physics)Elastic modulusComposite materialElastic energyDeformation (meteorology)Deformation mechanismCondensed matter physicsAlloyThermodynamicsMicrostructurePhysics

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Publication Info

Year
2003
Type
article
Volume
300
Issue
5618
Pages
464-467
Citations
919
Access
Closed

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Cite This

Takashi Saito, Tadahiko Furuta, Jung-Hwan Hwang et al. (2003). Multifunctional Alloys Obtained via a Dislocation-Free Plastic Deformation Mechanism. Science , 300 (5618) , 464-467. https://doi.org/10.1126/science.1081957

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DOI
10.1126/science.1081957