Heat treatments of DET(Divorced Eutectoid Transformation) and quenching+tempering were carried out to obtain the microstructure of ferrite with ultra-fine carbides for a 1.6%C ultra-high carbon steel.

• 摘要对1.；6%25C超高碳钢进行离异共析和淬火+高温回火两种工艺球化预处理，获得了铁素体基体上分布超细碳化物组织，在此基础上进行了两类淬火处理。