Effect of heat treatment on structure and properties of electrodeposited Fe-Ni-W alloys.

Fe-Ni-W amorphous alloy platings were electrodeposited on the surface of S135 steel, and heat treatments at 125, 165, 205, 255, 305, 355 and 405°C were carried out on them. Corrosion resistance, hardness, structure and morphology of Fe-Ni-W amorphous alloys have been tested and analysed by means of polarisation curve, hardness test, X-ray diffraction and scanning electron microscopy, respectively. The results show that the as-plated Fe-Ni-W alloys are amorphous under this experimental condition. Autoclave corrosion test, together with polarisation curve results and general corrosion experiment, indicates that the best heat treatment temperature of Fe-Ni-W alloy electrodeposited on S135 steel is 165°C in this paper. [ABSTRACT FROM AUTHOR]