Abstract
The effects of nitriding temperature and time on properties of pearlite ductile cast iron were studied by wear and corrosion resistance tests. The results show that the main phases of oxide layer are Fe3O4 and Li2Fe3O4, and the main phases of compound layer are Fe3N and Fe4N. With the increase of nitriding temperature, the micro-hardness and wear resistance increase first and then decrease. The micro-hardness and wear resistance increase continuously with the prolongation of nitriding time. The corrosion resistance of the sample is relatively good when nitriding at 640 °C for 120 min.
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