期刊
SURFACE & COATINGS TECHNOLOGY
卷 205, 期 2, 页码 281-286出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2010.06.042
关键词
Nanostructured coatings; HVOF; X-ray diffraction; Magnetic properties; Microhardness
资金
- Ministere de l'Enseignement Superieur et de la Recherche Scientifique, Algeria
Partially amorphous Fe75Si5B10 coatings were prepared from nanostructured feedstock powders by using high velocity oxy-fuel spraying. Scanning electron microscopy. X-ray diffraction, Vickers indenter and magnetic measurements were used to investigate microstructural, structural, microhardness and magnetic properties of the coatings The Rietveld refinement of the X-ray diffraction patterns reveals the presence of an amorphous phase, nanocrystalline alpha-Fe(Si,B) structure having a lattice parameter close to 0.2841 nm and an average crystallite size of about 78-83 nm in addition to small amounts of Fe3O4 oxide (104 nm) and Fe2B boride (151 nm), which disappear completely with increasing coating thickness Coeravity and microhardness values are 15.5 Oe and 478 Hv. respectively, for 84 mm thickness. (C) 2010 Elsevier B.V. All rights reserved
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