A tetragonal σ phase of the equiatomic FeCr alloy was investigated by x-ray diffraction under pressure up to 77 GPa. The phase was found to be stable in the whole pressure range studied. The equation of state for the tetragonal phase was found to have a value of bulk modulus K(0) = 217(5) GPa and its pressure derivative was K(0)' = 5.8(2), which makes it less compressible than the constituent elements. Electronic factors governing the σ phase stability are discussed in relation to the Hume-Rothery mechanism.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1088/0953-8984/21/7/075706 | DOI Listing |
Publication Analysis
Top Keywords
pressure 77 gpa
8
tetragonal phase
8
phase
5
structural stability
4
stability sigma
4
sigma phase
4
phase fecr
4
pressure
4
fecr pressure
4
77 gpa tetragonal
4
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!