The nil ductility transition temperature ( ndt) and the reference temperature ( rtndt) 无延性转变温度(NDT)与基准温度(RT(NDT))
Moreover, the drop weight test of the steel showed that the nil ductility transition temperature ( NDTT) is in fact the very temperature Tc, d. 此外,落锤试验还表明:该钢的零塑性转变温度NDT即为Tc*,d。