Fe-Mn group vibration damping alloy manufacturing method thereof

摘要

A vibration damping alloy has a mixed structure of martensite and austenite. The alloy steel is iron-based to which 14-22% by weight of manganese is added. The vibration damping alloy is manufactured by mixing electrolytic iron and manganese in a molten state. The molten mixture, containing 14-22% of manganese with the remainder of iron, is cast as an ingot. The ingot is homogenized at 1000°-1300° C. for 20-40 hours and then hot rolled at 900°-1100° C. for 20 minutes to 90 minutes. The ingot is cooled with air or water.