Aaron Den Boer - 701 Seminar - November 20 2012 - Course Notes

Introduction
• Evolution of microalloyed HSLA steels has led to the development
of ferroalloy additions in steelmaking
• Microalloying is performed by adding ferroalloys to the liquid steel
during ladle metallurgy FeNb, FeTi, FeV
• One aim of ladle metallurgy is alloying to adjust for target chemical
analysis; the ladle temperature is around 1600°C
• Once these ferroalloys have assimilated into the melt, casting will
result in the formation of fine precipitates at late stages of
solidification
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