Ball-milling in vacuum of α and σ phases of near-equiatomic FeCr alloys

被引：6

作者：

Costa, B. F. O. ^{[1
]}

Le Caer, G. ^{[2
]}

Loureiro, J. M. ^{[1
]}

机构：

[1] Univ Coimbra, Dept Phys, CEMDRX, P-3004516 Coimbra, Portugal

[2] Univ Rennes 1, UMR UR1 CNRS 6251, Inst Phys Rennes, F-35042 Rennes, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 483卷 / 1-2期

关键词：

Fe-Cr; alpha-Phase; sigma-Phase; Ball-milling; Amorphisation; Mossbauer spectroscopy; MOSSBAUER; CR; TRANSFORMATIONS;

D O I：

10.1016/j.jallcom.2008.07.179

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The structural changes induced by ball-milling of near-equiatomic sigma-FeCr and alpha-FeCr in vacuum were followed. Besides the a-phase, an amorphous phase appears when milling the sigma-phase for times longer than 20 h. An amorphous phase forms too, but at a slower rate than the latter, when milling the alpha-phase. The partial amorphisation of sigma-FeCr and alpha-FeCr ball-milled in vacuum is concluded to be a phenomenon of intrinsic origin. The amorphous phase crystallizes into a bcc Cr-rich phase and a bcc Fe-rich phase during short annealing steps. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：70 / 73

页数：4

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