Probe Mössbauer spectroscopy of mechanical alloying in binary Cr‐{sup 57}Fe(1 at%) system

Journal Article · Mon Oct 27 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4898619· OSTI ID:22308092

Elsukov, Evgeny P., E-mail: [e-mail]; Kolodkin, Denis A., E-mail: [e-mail]; Ul'yanov, Alexander L., E-mail: [e-mail]; Porsev, Vitaly E., E-mail: [e-mail] ^[1]

---

1. Physical-Technical Institute UrB RAS, Izhevsk (Russian Federation)

Solid state reactions during mechanical alloying (MA) in a binary mixture of powdered Cr and {sup 57}Fe in atomic ratio of 99:1 have been studied using {sup 57}Fe Mössbauer spectroscopy, X-ray diffraction and Auger spectrometry. The proposed model of MA includes formation of Cr(Fe){sub x}O{sub y} oxides at the contact places of Cr and Fe particles, formation of nanostructure with simultaneous dissolution of the oxides, penetration of Fe atoms along grain boundaries in close-to-boundary distorted zones of interfaces in a substitutional position, formation of the substitutional solid solution of Fe in Cr in the body of grains. It was shown that the increase in the BCC lattice parameter on increasing the milling time is due to the dissolution of oxides and formation of interstitial solid solution of O in Cr. There were established substantial differences in consumption of BCC Fe in a Mg → Al → Si → Cr sequence due to the major role of chemical interaction of Mg(Al,Si,Cr) with Fe.

• OSTI ID: 22308092
• Journal Information: AIP Conference Proceedings, Vol. 1622, Issue 1; Conference: Conference on Moessbauer spectroscopy in materials science 2014, Hlohovec u Breclavi (Czech Republic), 26-30 May 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTROSCOPY
ALUMINIUM
AUGER ELECTRON SPECTROSCOPY
BCC LATTICES
BINARY MIXTURES
CHROMIUM OXIDES
GRAIN BOUNDARIES
INTERFACES
IRON 57
IRON OXIDES
MOESSBAUER EFFECT
NANOSTRUCTURES
PARTICLES
POWDERS
SOLID SOLUTIONS
SOLIDS
X-RAY DIFFRACTION