Experimental evidence of effective <111> atomic exchanges in a B2 intermetallic alloy

2016/06/21 by Markus Stana, Stana, Markus, Manuel Ross +3
Engineering · Physics and Astronomy · #Advanced Materials Characterization Techniques #FOS: Physical sciences #Intermetallics and Advanced Alloy Properties #Materials Science (cond-mat.mtrl-sci) #Semiconductor materials and interfaces

paper · pdf · doi:10.48550/arxiv.1606.06516

openalex publication_date 2016/06/21 · openalex created_date 2022/09/30 · openalex updated_date 2026/07/28

Abstract

We report on an atomic-scale X-ray Photon Correlation Spectroscopy study on Fe-rich FeAl in the B2-ordered regime revealing effective &lt;111&gt;-exchanges of atoms on the Al-sublattice. The diffusion mechanism responsible for these exchanges is the dominating process for chemical diffusion and therefore controls long-range material transport in the system. Comparison with previous atomistic results shows that the dominance of further exchanges can be characteristic at moderate temperatures where the system is highly ordered.

Related

• Impurity diffusion in highly-ordered intermetallic compounds studied by nuclear quadrupole interactions
• Radioactive isotopes reveal a non sluggish kinetics of grain boundary diffusion in high entropy alloys
• Anomalous inter-layer atomic transport and the low-temperature\n amplification of surface instability in Al(111)
• Diffusion and equilibration of site-preferences following transmutation of tracer atoms
• Atomic diffusion due to hyperatomic fluctuation for quasicrystals