Formation of disordered structures in Cr-Fe alloy by mechanical milling

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Published under licence by IOP Publishing Ltd
, , Citation S K Xia et al 1993 J. Phys.: Condens. Matter 5 2729 DOI 10.1088/0953-8984/5/17/007

0953-8984/5/17/2729

Abstract

Mechanical milling was performed on the alloy Cr72Fe28. X-ray diffraction and Mossbauer spectroscopy were used to follow the progress of the structural variation. The experimental results can be interpreted by assuming that the milled powders are composed of a small amount of crystalline component and two disordered components: one with a random densely packed structure and the other with a random loosely packed structure. Moreover, differential scanning calorimetry was used to obtain the crystallization temperature. A mechanism was proposed to describe the formation of the disordered structures as well as the structural stability in this alloy.

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10.1088/0953-8984/5/17/007