# Rules of plastic strain-induced phase transformations and nanostructure evolution under high-pressure and severe plastic flow

Source: [Rules of plastic strain-induced phase transformations and nanostructure evolution under high-pressure and severe plastic flow](<https://www.sota2.com/research/paper/68fa44531e209131ce9103a9>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-25T04:43:55.957Z

Authors: Feng Lin, Valery Levitas, Krishan Pandey, Sorb Yesudhas, Changyong Park

Published: 2023-05-25T05:37:01.000Z

## Abstract

Rough diamond anvils (rough-DA) are introduced to intensify all occurring processes during an in-situ study of heterogeneous compression of strongly pre-deformed Zr in diamond anvil cell (DAC). Crystallite size and dislocation density of Zr are getting pressure-, plastic strain tensor- and strain-path-independent during {\\alpha}-{\\omega} phase transformation (PT) and depend solely on the volume fraction of {\\omega}-Zr. Rough-DA produce a steady nanostructure in {\\alpha}-Zr with lower crystallite size and larger dislocation density than smooth-DA, leading to a two-time reduction in a minimum pressure for {\\alpha}-{\\omega} PT to a record value 0.67 GPa. The kinetics of strain-induced PT unexpectedly depends on time.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2305.15737>)

[PDF](<https://arxiv.org/pdf/2305.15737.pdf>)