ABSTRACT
High chromium cast irons are widely used in many engineering practices where wear
resistance is required. This paper studies the effect of titanium concentration on the
wear behaviour of slightly hypoeutectic high chromium white cast iron. Other
approach was investigated by adding other carbide forming elements such as
manganese and molybdenum as a combination of two and three elements. The aim
is mainly to see the influence of these elements on the toughness of the matrix, the
smoothness of the structure as well as the wear properties of this kind of cast iron.
Results, discussed in terms of the wear behaviour, shows that lower volume loss is
seen for the sample having higher titanium content (3% Ti). This explains that
titanium proeutectic carbide is the first phase precipitation during solidification which
contributes to a reinforcement of the matrix. The formation of these carbides
consumes parts of the carbon present in the alloy so that during eutectic solidification
the volume of eutectic carbides diminished. The addition of manganese and
molybdenum gives less important results.