Abstract
A high chromium cast iron (Fe-15Cr-3.66C) was applied as an infiltrant to WC-Ni skeletons because of its high hardness and high wear resistance, and some properties of iron-chromium-carbon alloy infiltrated WC-Ni skeletons were investigated.
The results of this work can be summarized as follows:
(1) The uniform and hard alloys were obtained easily by means of the double direction infiltration process.
(2) Wear resistance of this alloy was better than that of the nickel-phosphorus alloy infiltrated WC-Co skeleton, and almost the same as that of the sintered WC-18Co alloy.
(3) Corrosion resistance of this alloy against some acids was almost the same as that of the sintered WC-9Co alloy.
These improved properties will be caused by both a chromium-iron double carbide (K2 type) and chromium dissolved in the binder of this alloy.
