High Chrome White Cast Iron Damp Covers manufacturers tell you that high chromium white cast iron is widely used in anti-wear protection parts. Its superior wear resistance and erosion resistance come from its microstructure, that is, a high volume fraction of eutectic and secondary M7C3-type chromium iron carbides in a martensite/retained austenite matrix.

The manufacturer of High Chrome White Cast Iron Damp Covers tells you that the purpose of this study was to try to improve wear resistance by introducing an additional distribution of superhard carbides such as titanium, niobium, vanadium and tungsten carbides. Up to 4% of these elements are added to the microeutectic, 25% chromium primary molten iron. The wear resistance of these alloys was evaluated under low and high stress abrasive wear, as well as mortar erosion conditions.
Typically, a significant increase in wear resistance in one mode reduces wear resistance in the other modes. The manufacturer of High Chrome White Cast Iron Damp Covers tells you that titanium and niobium each form their own primary carbides at high temperatures. The addition of titanium and niobium tends to change the eutectic carbide from plate-like to lath-like morphology. Vanadium and tungsten do not form separate carbides, but are distributed in the existing matrix and carbide phases and increase their hardness.