Atomic Level Characterization of the Morphology of Phases in Chromindur Magnetic Alloys

Author:

Miller M. K,Camus P. P.,Hetherington M. G.

Abstract

ABSTRACTThe atom probe field ion microscope has been used to characterize the morphology and determine the compositions of the iron-rich a and chromium-enriched α′ phases produced during isothermal and step cooled heat treatments in a Chromindur II ductile permanent magnet alloy. The good magnetic properties of this material are due to a combination of the composition of the two phases and the isolated nature and size of the ferromagnetic a phase. The morphology of the a phase is produced as a result of the shape of the miscibility gap and the step-cooled heat treatment and is distinctly different from that formed during isothermal heat treatments.

Publisher

Springer Science and Business Media LLC

Subject

General Engineering

Reference6 articles.

1. 3. Soffa W.A. , Brenner S.S. , Camus P.P. and Miller M.K. , Proc. 29th International Field Emission Symposium, 1982, Gothenburg, pp. 511–518, edited Norden H. and H. Andren, pub. Almqvist and Wiksell International, Stockholm.

2. Spinodal decomposition of iron-32 at.% chromium at 470°C

3. Phase separation and coarsening in FeCrCo alloys

4. 5. Miller M.K. , Surf. Sci., (1991) in press.

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