FE BASED ALLOY HAVING CORROSION RESISTANCE AND ABRASION RESISTANCE

摘要

A Fe based alloy having corrosion resistance and abrasion resistance is provided to confirm that corrosion resistance and abrasion resistance are increased by adding high carbon and alloy elements, reducing the carbon amount, and increasing the boron amount. A Fe based alloy having corrosion resistance and abrasion resistance contains 20 to 30 weight% of Cr, 0.5 to 2 weight% of C, 0.5 to 2 weight% of B, 3 to 4 weight% of Ni, 3 to 6 weight% of Mo, 3 to 6 weight% of W, and the remainder of Fe. Weight ratio of Cr/(C+B) is 8 to 12. Contents of Ni, Mo, and W are 9 to 16 weight%. A phase fraction of austenite and martensite is 95:5 to 50:50. Loss weight which is measured by ASTM G65 is less than 150mg.