Microstructure and properties of clad rolling SM45 steel plate
LI Guang-long1， ZHAO Tan1， FAN Liu-qun1， YUAN Si-yu1， LI Wen-bin1， LI Li-ming2
1. Iron and Steel Research Institute， Angang Group， Anshan 114009， Liaoning， China 2. Bayuquan Subsidiary Company， Angang Company Ltd.， Yingkou 115007， Liaoning， China
Abstract：Heavy plates over 100 mm are hardly produced by continuous casting slab due to the restriction of reduction ratio.SM45 clad steel plate with thickness 260 mm was manufactured by clad rolling. Test methods， such as ultrasonic inspection， cold bending， tensile， impact and hardness， were utilized to test the combination degree and mechanical properties. The results showed that SM45 plate manufactured by clad rolling combined well and had no obvious defection. Strengths of clad interface and base body were both above 600 MPa. [Z] direction strengths were also above 600 MPa， and contraction of area were above 30%. Impact energy was above 37 J. The basic microstructure of SM45 steel plate was ferrite and pearlite， but the grain size was different in different locations. There was a ferrite belt in clad interface which formed because of the proeutectoid ferrite.
收稿日期: 2014-07-30
出版日期: 2015-03-18
引用本文:
李广龙， 赵 坦， 范刘群， 原思宇， 李文斌， 李黎明. 复合轧制SM45钢板的组织性能[J]. 钢铁, 2015, 50(3): 59-63.
LI Guang-long， ZHAO Tan， FAN Liu-qun， YUAN Si-yu， LI Wen-bin， LI Li-ming. Microstructure and properties of clad rolling SM45 steel plate. Iron and Steel, 2015, 50(3): 59-63.
Wang G L, Luo Z A, Xie G M et al.Experiment Research on Impact of Total Rolling Reduction Ratio on the Properties of Vacuum Rolling-Bonding Ultra-Thick steel plate.[J].Advanced Materials Research, 2011, (299):962-965
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Wang G L, Luo Z A, Xie G M et al.Experiment Research on Impact of Total Rolling Reduction Ratio on the Properties of Vacuum Rolling-Bonding Ultra-Thick steel plate.[J].Advanced Materials Research, 2011, (299):962-965
2015, Vol. 50 
