Softening Mechanism of Boron—Bearing Low--Carbon Hot Strips Produced by TSCR Route
QIU Shengtao; XIAO Lijun; LIU Jiaqi; GAN Yong
State Key Laboratory of Advanced Steel Processes and Products; Central Iron and Steel Research Institute; Beijing 100081
Cite this article:
QIU Shengtao; XIAO Lijun; LIU Jiaqi; GAN Yong. Softening Mechanism of Boron—Bearing Low--Carbon Hot Strips Produced by TSCR Route. Acta Metall Sin, 2006, 42(11): 1202-1206 .
Abstract The SPHC (Steel Plate Heat Commercial) hot strips containing 10ppm～50ppm B were produced in the simulation of TSCR production route in the laboratory,the effects of boron micro-alloying on the microstucture,precipitates and mechanical properties were investigated.The results showed that the grain-size scale of the SPHC hot strips containing 10ppm～50ppm B can attain to 7~8 grade,the mean grain size was up to 22～35μm, the yield strength decreased by 94Mpa.
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