Quantitative kinetic rules for plastic strain-induced α-ω phase transformation in Zr under high pressure
arxiv(2024)
Abstract
Plastic strain-induced phase transformations (PTs) and chemical reactions
under high pressure are broadly spread in modern technologies, friction and
wear, geophysics, and astrogeology. However, because of very heterogeneous
fields of plastic strain 𝐄^p and stress σ tensors
and volume fraction c of phases in a sample compressed in a diamond anvil
cell (DAC) and impossibility of measurements of σ and
𝐄^p, there are no strict kinetic equations for them. Here, we
develop combined experimental-computational approaches to determine all fields
in strongly plastically predeformed Zr and kinetic equation for
α-ω PT consistent with experimental data for the entire sample.
Kinetic equation depends on accumulated plastic strain (instead of time) and
pressure and is independent of plastic strain and deviatoric stress tensors,
i.e., it can be applied for various above processes. Our results initiate
kinetic studies of strain-induced PTs and provide efforts toward more
comprehensive understanding of material behavior in extreme conditions.
MoreTranslated text
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined