Present situation in research on iron-based hardfacing alloy

The classification and method of hardfacing material,the nature of alloying elements and the formation characteristics of carbide of surfacing layer are summarized in this paper.Strengthening mechanism of iron-based hardfacing alloy,alloying elements in the role of surfacing layer and the morphology of abrasive wear were discussed in the meantime.Later wear resistant mechanisms of the iron-based hardfacing alloy was analyzed.Iron-based hardfacing alloy has a lot of advantages such as low cost,varieties,the intensity,the toughness,the abrasive resistance and impact resistance of surfacing layer are easily to be transformed.Iron-based hardfacing alloy has a good application prospect,and are becoming one of the most important aspects in current researches.