Type and amount of alloy elements can affect the number of micro-structure and hard phase and thus the wear resistance performance of bimetallic overlay plate.

For all kinds of alloy elements, with the increase in their content, the wear resistance of the hardfacing overlay wear plate increases. But when the content of alloy elements reaches certain level, the wear resistance of hardfacing wear plate  increase slowly or a goes down, there is a variety of reasons for this issue.

According to the present research situation, the wear resistance of hardfacing chromium carbide overlay plate is mainly affected by the hardness, micro-structure, the type and quantity of the alloy elements, so it is necessary to consider all these factors when we want to develop new high wear resistance hardfacing alloy, to enables the surfacing layer metal to achieve the best performance
at the lowest cost.