New thick Fe-based amorphous alloy coatings have been synthesized by laser
surface cladding, with the nominal composition of Fe57Co8Ni8Zr10Si4B13 (at.
%). The supercooled liquid region, DeltaT(x), defined by the difference bet
ween the glass transition temperature (T-g) and the onset temperature of cr
ystallization (T-x) was as large as 62 K and T-g was 821 K. The high therma
l stability of the supercooled liquid enabled the synthesis of a coating wi
th maximum thickness of 1.2 mm. The amorphous alloy coating had a high Vick
ers hardness of 1270 and good corrosion resistance. (C) 2001 Elsevier Scien
ce B.V. All rights reserved.