LIU Yun-fei
,
PENG Yan
,
LIU Hong-min
,
ZHANG Jian
钢铁研究学报(英文版)
According to the research on the deformation resistance and the ferrite transformation behavior of X80 pipeline steel by using Gleeble-3500 thermal simulator, a mathematical model of the α-phase start transformation temperature for high-Nb pipeline steel was established, based on the transformation kinetics and thermodynamics. The influence of deformation and cooling rate as well as Nb content on the α-phase starting temperature was thoroughly investigated. The results given by the model were in good agreement with the experimental results, which showed that the model could predict the α-phase starting temperature for high-Nb pipeline steel during cooling process.
关键词:
high-Nb pipeline steel
,
hot deformation
,
deformation resistance
,
cooling rate
,
ferrite transformation temperature
