Effect of V content on recovery and recrystallization behavior of S30432 steel
LI Bin-bin1,ZHU Li-hui1,ZHAI Guo-li2,WANG Qi-jiang2
1. School of Materials Science and Engineering,Shanghai University,Shanghai 200072,China 2. Central Research Institute,Baosteel Group,Shanghai 201900,China
Abstract:The effect and mechanism of V content on dynamic recovery and recrystallization behavior of S30432 heat-resistant steel containing 0.05% V and 0.18% V were studied, using a Gleeble-3500 thermalmechanical simulation unit at deformation temperatures of 900-1 100 ℃ and strain rates of 0.001-0.100 s-1. The results reveal the peak flow stresses of S30432 steel increase when 0.18%V is added. The activation energy for recrystallization increases from 498 kJ/mol for the base steel containing 0.05% V to approximately 562 kJ/mol for the steel containing 0.18% V. Dynamic recovery and recrystallization are significantly hindered at 1 000 and 1 050 ℃. After 0.18% V is added, the dynamic recovery and recrystallization of S30432 steel are retarded effectively mainly because of the precipitation of fine Z phase, by which the dislocations are strongly pinned. The increase of dissolved V amount in the matrix of S30432 steel also promotes the retardation of dynamic recovery and recrystallization.
收稿日期: 2015-12-01
出版日期: 2016-07-11
引用本文:
李彬彬,朱丽慧,翟国丽 ,王起江. 钒质量分数对S30432钢回复再结晶行为的影响[J]. 钢铁, 2016, 51(7): 64-70.
LI Bin-bin,ZHU Li-hui,ZHAI Guo-li,WANG Qi-jiang. Effect of V content on recovery and recrystallization behavior of S30432 steel. Iron and Steel, 2016, 51(7): 64-70.
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