Study on Corrosion Resistance of Several Fe-Based Amorphous Alloys

Abstract:

Three ribbons were obtained by rapid solidification using the melt-spinning techniques, and annealed with different temperatures. The corrosion behavior of ribbons in 0.1mol/L NaCl solution and the effects of annealing temperatures on the corrosion resistance were studied by open circuit potential and polarization curve test. Phase structure changes of the ribbons before and after corrosion were analyzed by X-ray diffraction (XRD). The amorphous forming ability and crystallization temperature of materials were characterized by differential scanning calorimetry (DSC). The surface morphology and composition before and after corrosion were analyzed by scanning electron microscopy (SEM) and electron probe microanalysis (EPMA). The result showed that Fe₉₀Si_5.5B_4.5 and Fe₉₁Si_5.5B_3.5 had high corrosion resistance. Corrosion resistance of the three ribbons had increased along with the increase of annealing temperatures.

• Periodical: Materials Science Forum (Volume 789)
• Pages: 633-637
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.789.633
• Online since: April 2014
• Authors: Xiu Juan Tian*, Wan Fu Liu, Kun Xie
• Keywords: Corrosion Behavior, Crystalline Temperature, Fe-Based Amorphous, NaCl Solution

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