Showing papers by "Bethlehem Steel published in 2014"

Steels: Near Eutectoid

Abstract: Eutectoid steel with full pearlitic microstructure is hard and strong. Near eutectoid steels containing pearlite and proeutectoid ferrite or cementite micro-constituents do not give that unique properties. Isothermal transformation treatments with precise control of cooling temperature produce fully pearlitic microstructure of fine lamellar spacing in near eutectoid steels. The cold drawn wire of this fine pearlite steel is one of the strongest materials used in music wire where the strings are tuned under tension. Carbon–manganese steels containing 0.65–0.84%C and 0.70–1.10%Mn transform to pearlite upon air-cooling, which develops wear resistance and hardness properties suitable for rails application. These properties further increase with finer interlamellar spacing generated by reducing transformation temperature.