ZHENG Xiao-fei
,
KANG Yong-lin
,
MENG De-liang
,
AN Shou-yong
,
XIA Dian-xiu
钢铁研究学报(英文版)
The effect of cooling (laminar cooling) start temperature on the phase constitution was analyzed by quantitative metallography. The martensite/austenite (M/A) island distribution was fixed by colour metallography. The strength and uniform elongation of the steels were tested with quasi-static tensile testing machine. The in-coordinate deformation of the soft and hard phases was analyzed using FEM. The results indicate that when the cooling start temperature is 690 ℃, the mechanical properties are the best, meeting the requirements of X80 high deformability pipeline steel.
关键词:
high deformability pipeline steel
,
cooling start temperature
,
carbon diffusion
,
in-coordinate deformation
,
M/A island
