J Mater Sci Technol ›› 2011, Vol. 27 ›› Issue (12): 1169-1177.

• Regular Papers • Previous Articles     Next Articles

Crystallization and Corrosion Resistance of (Fe0.78Si0.09B0.13)100-xNix (x=0, 2 and 5) Glassy Alloys

Haijian Ma1,2), Weimin Wang1), Jie Zhang1), Guihua Li3), Chongde Cao4), Hongdi Zhang1)   

  1. 1) Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, China
    2) School of Mechanical and Electrical Engineering, Weifang University, Weifang 261061, China
    3) Shandong Institute of Metrology, Jinan 250014, China
    4) Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2011-02-14 Revised:2011-05-08 Online:2011-12-28 Published:2011-12-24
  • Contact: W.M. Wang
  • Supported by:

    the National Natural Science Foundation of China (Nos. 50871061 and 51171091), the Shandong Excellent Youth Award Foundation (No.
    2008BS04020), the Excellent Youth Project of Natural Science Foundation of Shandong (JQ201012) and the Open Project of Key Lab of Magnetism, Magnetic Materials in Lanzhou University (LZUMMM 2010008)

Abstract: The crystallization of the (Fe0.78Si0.09B0.13)100-xNix glassy alloys (x=0, 2 and 5) has been investigated by X-ray diffraction (XRD) and differential scanning calorimeter (DSC). Corrosion resistance analyses have been carried out using electrochemical measurements and corrosion products have been analyzed  by scanning electron microscopy (SEM). The experimental results show that the addition of Ni can promote the nucleation of α-Fe, retard the decomposition of the metastable borides, and alter the crystallization mode of the present Fe-based glassy alloys. The lattice constant (aFe 0 ) of α-Fe in the annealed samples shows a decreasing trend with increasing annealing time. The Ni addition can improve the corrosion resistance of the as-quenched Fe-based glassy alloys in H2SO4, NaCl and NaOH solutions. The results indicate that Ni can promote the diffusion of Si atoms during quenching and annealing processes.processes.

Key words: Crystallization, Corrosion resistance, Fe-based glassy alloys