ArticleNature communications2024
Elemental partitioning-mediated crystalline-to-amorphous phase transformation under quasi-static deformation.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Sparse Nanocrystals Enable Ultra-Low Coercivity and Remarkable Mechanical Robustness in High-Entropy Amorphous Alloy.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Mechanical properties of crystalline-amorphous composites: generalization of Hall-Petch and inverse Hall-Petch behaviors.National science review · 2025Article
- Designing NiNature communications · 2024Article
- Elastic strain-induced amorphization in high-entropy alloys.Nature communications · 2024Article
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Authors and funding
7 authors.
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Abstract
The transformation induced plasticity phenomenon occurs when one phase transforms to another one during plastic deformation, which is usually diffusionless. Here we present elemental partitioning-mediated crystalline-to-amorphous phase transformation during quasi-static plastic deformation, in an alloy in form of a Cr-Ni-Co (crystalline)/Zr-Ti-Nb-Hf-Ni-Co (amorphous) nanolaminated composite, where the constitute elements of the two phases have large negative mixing enthalpy. Upon plastic deformation, atomic intermixing occurs between adjacent amorphous and crystalline phases due to extensive rearrangement of atoms at the interfaces. The large negative mixing enthalpy among the constituent elements promotes amorphous phase transformation of the original crystalline phase, which shows different composition and short-range-order structure compared with the other amorphous phase. The reduced size of the crystalline phase shortens mean-free-path of dislocations, facilitating strain hardening. The enthalpy-guided alloy design based on crystalline-to-amorphous phase transformation opens up an avenue for the development of crystal-glass composite alloys with ultrahigh strength and large plasticity.
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