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Partial amorphization of an alpha-FeCr alloy by ball-milling

Authors: J.M. Loureiro, B.F.O. Costa, G. Le Caƫr and P. Delcroix

Ref.: Hyperfine Interactions 183, 109-115 (2008)

Abstract: The structural changes of near-equiatomic alpha-FeCr alloys, ground in a vibratory mill in vacuum and in argon, were followed as a function of milling time. An amorphous phase forms in both cases but at a much faster rate when milling in argon than when milling in vacuum. Amorphisation by ball-milling of alpha-FeCr alloys is deduced to be an intrinsic phenomenon which is however speeded-up by oxygen. The amorphous phase crystallizes into a bcc Cr-rich phase and a bcc Fe-rich phase when annealed for short times.

DOI: 10.1007/s10751-008-9737-2