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| Experimental study of roll composite for low-alloy ultra-heavy steel plate |
| WANG Xiao-yong1, WANG Hua-peng2, JIA Xiao-lin2, ZOU Yang1, PIAO Xue-feng2 |
1. Research Institute of Technology, Shougang Group Co., Ltd., Beijing 100043,China;
2. Heavy Plate Department, Shougang Jingtang United Iron and Steel Co., Ltd., Tangshan 063210, Hebei, China |
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Abstract In order to meet the market demand of low-alloy steel plate with large single weight and ultra-heavy specifications, the experimental study of ultra-heavy steel plate produced by composite continuous casting slab was carried out by the rolling composite process. Ultra-heavy steel plates were obtained through rolling from composite slab. The comprehensive test and analysis show that the interface bonding of ultra-heavy steel plate produced by rolling composite process is good, and metallurgical bonding at atomic level is achieved with the sufficient recrystallization of grain at the bonding interface. The z-direction tensile properties meet the requirements of Z35, but the local reduction of area is low due to the existence of band-distributed oxides at the bonding interface microregion.
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Received: 31 March 2022
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2022, Vol. 32 
