The effect of deposition temperature on the surface coverage and morphology of iron-phosphate coatings on low carbon steel
作者： J.P. Popić , B.V. Jegdić , J.B. Bajat , Đ. Veljović , S.I. Stevanović
DOI: 10.1016/J.APSUSC.2011.07.122
关键词: Phosphate 、 Nucleation 、 Scanning electron microscope 、 Nano- 、 Metallurgy 、 Carbon steel 、 Iron phosphate 、 Materials science 、 Morphology (linguistics) 、 Spectroscopy 、 Chemical engineering 、 Surfaces, Coatings and Films
摘要: Abstract The influence of deposition temperature and concentration NaNO 2 in the phosphating bath on surface morphology coverage iron-phosphate coatings low carbon steel was investigated. phosphate were chemically deposited from at different temperatures (30–70 °C) with addition amounts accelerator, (0.1, 0.5 1.0 g dm −3 ). investigated using scanning electron microscopy (SEM) atomic force (AFM). composition determined energy dispersive X-ray spectroscopy (EDS) diffraction (XRD). Surface evaluated by voltammetric anodic dissolution (VAD) technique. It shown that increase -free up to 70 °C caused an coverage. significantly increased lower than 50 °C. crystals laminated needle-like structures for deposits obtained 50 °C, while higher structure transformed structure. 0.1 did not coverage, but decreased size, consequently favouring nucleation better packing crystals.
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