Chromium-nickel cast iron composition effect on properties and graphitization process

Abstract

The paper considers the cast iron based on nihard-2 composition effect on the properties and process of graphitization. It is shown that changing the Cr:Si ratio equal to 2:1 leads to the development of the graphitization process, as a result of which lamellar graphite appears in the structure. Subsequent modification leads to changing the shape of the graphite into the nodular one, which leads to some decrease in hardness but increases resistance to abrasive wear by about 20-25 %.

Keywords

• cast iron Cr-Ni
• hardness
• wear resistance
• structure
• graphit