稀土学报(英文版)
稀土學報(英文版)
희토학보(영문판)
JOURNAL OF RARE EARTHS
2002年
1期
36-40
,共5页
林勤%王怀斌%卢先利%宋波%唐历%贾连弟
林勤%王懷斌%盧先利%宋波%唐歷%賈連弟
림근%왕부빈%로선리%송파%당력%가련제
rare earths%vanadium%precipitation%recrystallization%microalloying
The effects of RE were studied by TEM, SEM, ICP and thermal simulation methods in vanadium microalloyed steel. The content of RE in the solid solution can reach the order of 10-5～10-4 in steel. The solid solution of RE was found to reduce the stability of precipitated V(C,N), impede the precipitation of V(C,N) in austenite, and accelerate and refine the precipitation of V(C,N) in ferrite. The combined effect of RE and V is to delay the dynamic recrystallization, refine the grains and second phase particles, and to promote the precipitation of V(C,N) obviously. Thus the microalloying with RE and V leads to raising the strength and toughness of steel.
