J Mater Sci Technol ›› 2010, Vol. 26 ›› Issue (9): 783-786.

• Novel Processing and Characterization Methods • Previous Articles     Next Articles

Synthesis and Characterization of Fe50Cr14Mo14C14B6Gd2 Bulk Amorphous Steel

M. Iqbal, J.I. Akhter, H.F. Zhang, Z.Q. Hu   

  1. 1) Physics Division, Pakistan Institute of Nuclear Science & Technology, P.O. Nilore, Islamabad, Pakistan
    2) Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2009-08-10 Revised:2010-03-31 Online:2010-09-21 Published:2010-09-21
  • Contact: javed akhter

Abstract:

Bulk amorphous steel having 7 mm thickness was synthesized to evaluate its thermal stability and mechanical properties. The steel was synthesized by Cu mold casting technique using 1-2N pure metals. Characterization of the material was done by X-ray diffraction, differential scanning calorimetry and scanning electron microscopy.
The activation energies were calculated by Kissinger equation and it was found that the steel had better stability against crystallization. Mechanical properties like Vicker0s hardness, nanohardness, elastic modulus and elastic recovery of as-cast and annealed samples were measured. It was concluded that the present steel had good glass-forming ability (GFA) and mechanical properties.

Key words: Bulk amorphous steels, Activation energy, Glass-forming ability, Mechanical properties