Structure of amorphous iron-based coatings processed by HVOF and APS thermally spraying

被引：69
作者：
Cherigui, M [1 ]
Feraoun, HI [1 ]
Feninehe, NE [1 ]
Aourag, H [1 ]
Coddet, C [1 ]
机构：
[1] UTBM, LERMPS, F-90010 Belfort, France
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2004年 / 85卷 / 01期
关键词：
amorphous coatings; thermal spraying; magnetic properties; Fe3Si; FeNb; rapid quenching; intermetallics; electronic structures;
D O I：
10.1016/j.matchemphys.2003.12.017
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High-velocity oxy-fuel (HVOF) and air-plasma spraying (APS) were used to produce Fe3Si and FeNb alloy coatings. Adjusting the spraying conditions, amorphous coatings were obtained from the FeNb powder. However, for the Fe3Si powder, crystalline deposits were produced in all cases. Boron additives were used to improve the aptitude of the Fe3Si alloy to form an amorphous phase. In this perspective, first-principle calculations were elaborated to investigate the electronic structure of crystalline FeNb and Fe Si. It was shown that the introduction of boron impurities into the alloy matrix lead to the lowering of the structural stability, and made its electronic density of state more comparable to the corresponding FeNb structure. (C) 2004 Elsevier B.V. All rights reserved.
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收藏
页码：113 / 119
页数：7
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