金属学报. 2017, 53 (5): 549-558 doi: 10.11900/0412.1961.2016.00316



中厚板表层超细晶对止裂性能的影响
马江南,王瑞珍,杨才福,查小琴,张利娟

Effect of Surface Layer with Ultrafine Grains on Crack Arrestability of Heavy Plate
Jiangnan MA,Ruizhen WANG,Caifu YANG,Xiaoqin ZHA,Lijuan ZHANG
图4 TRRP钢中间坯水冷返温过程不同厚度位置的组织相变过程
Fig.4 Phase transformation behavior of microstructure through thickness of TRRP steel intermediate slab during water cooling and reverting (SUF—surface layer with ultrafine-grained microstructure, A—austenite, B—bainite, F—ferrite, P—pearlite, Ac1—austenite transformation beginning temperature during calefaction, Ac3—austenite transformation finish temperature during calefaction, Tuf—critical temperature for ultra-fine grain forming)