C曲线就是使加热至奥氏体区的钢过冷至Ar 1 以下,在不同温度和时间下等温转变得到的各种结构组织的曲线,因为其形状像拉丁字母“C”,故常称为C曲线-C curve is to make the steel is heated to the austenite region is too cold to Ar 1 or less, at different temperatures and times isothermal transformation curve obtained variou