High-strength and high-ductility nanostructured and amorphous metallic materials

Area of Science:

• Materials Science
• Nanotechnology
• Mechanical Engineering

Background:

• Achieving materials with both high strength and high ductility is a long-standing challenge in materials science.
• Nanotechnology advancements have opened new avenues for developing materials with superior mechanical properties.

Purpose of the Study:

• To highlight novel strategies for optimizing advanced nanomaterials and metallic glasses.
• To present the concept of strain non-localization for ductility enhancement.

Main Methods:

• Reviewing newly developed strategies for advanced nanomaterials and metallic glasses.
• Presenting the concept of multiscale heterogeneities (macro, micro, nano, atomic scales).

Main Results:

• Identified strategies to optimize nanomaterials and metallic glasses for dual high strength and ductility.
• Demonstrated the role of multiscale heterogeneities in enhancing ductility of intrinsically brittle materials.
• Highlighted a new class of nanomaterials with an exceptional yield strength-uniform elongation relationship.

Conclusions:

• Multiscale heterogeneities are key to achieving high strength and ductility in advanced materials.
• Nanostructured metallic materials and bulk metallic glasses represent a promising new class of high-performance materials.
• Further research into nanoprecipitate-reinforced nanomaterials shows potential for exceptional mechanical properties.