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材料工程  2015, Vol. 43 Issue (7): 62-67    DOI: 10.11868/j.issn.1001-4381.2015.07.011
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
利用控轧控冷技术开发热轧不锈钢复合板的实验研究
李龙, 祝志超, 张心金, 刘会云
中国第一重型机械股份公司 能源装备材料科学研究所, 天津 300457
Experimental Study on Hot Rolled Stainless Steel Clad Plate Produced by TMCP
LI Long, ZHU Zhi-chao, ZHANG Xin-jin, LIU Hui-yun
Materials Research Institute for Energy Equipment, China First Heavy Industries, Tianjin 300457, China
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摘要 使用Gleeble-3500热模拟试验机研究了Q345R的奥氏体连续冷却相变(CCT)行为,利用二辊可逆试验轧机进行了系列控制轧制控制冷却(TMCP)实验,开发出了不锈钢(316)/低碳钢(Q345R)复合板.较合理的工艺为:在奥氏体再结晶区进行轧制,终轧温度为1000~1050℃,总压下量为75%,轧后以0.2~7℃/s的速率冷却至450℃以下后空冷,随冷却速率的增加,Q345R钢板的显微组织从铁素体(F)+珠光体(P)向铁素体(F)+贝氏体(B)过渡,屈服强度范围330~430MPa,抗拉强度范围为535~595MPa,0℃的冲击吸收功高于50J;复合板界面结合强度大于350MPa,抗弯性能合格.
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李龙
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刘会云
关键词 控制轧制控制冷却连线转变曲线不锈钢复合板力学性能    
Abstract:Continuous cooling transformation (CCT) behavior of low carbon steel Q345R was investigated using a Gleeble-3500 thermo-mechanical simulator. A series of thermo-mechanical control process (TMCP) experiments were carried out by a two-roll reversing rolling mill with accelerated cooling system. Stainless steel(316)/low carbon steel(Q345R) clad plate was developed. The reasonable process is: rolling at the austenite recrystallization zone, and finish rolling at 1000-1050℃ with total reduction rate 75% followed by accelerated cooling of 0.2-7℃/s to below 450℃ and then air cooling, as the increasing of cooling speed, the microstructure of Q345R steel transforms from ferrite(F) plus pearlite (P) to ferrite(F) plus bainite(B), yield strength is 330-430MPa, tensile strength is 535-595MPa, average Charpy V Notch (CVN) energy at 0℃ higher than 50J, the interface bonding strength of the composite plate is greater than 350MPa, and the bending performance is qualified.
Key wordsTMCP    CCT curve    stainless steel clad plate    mechanical property
收稿日期: 2014-02-27      出版日期: 2015-07-27
中图分类号:  TG142.1  
通讯作者: 李龙(1977-),男,高级工程师,博士,研究方向为金属层状复合材料,联系地址:江苏省无锡市新区鸿山镇(后宅)鸿山路99号(214145)     E-mail: lichen040928@163.com
引用本文:   
李龙, 祝志超, 张心金, 刘会云. 利用控轧控冷技术开发热轧不锈钢复合板的实验研究[J]. 材料工程, 2015, 43(7): 62-67.
LI Long, ZHU Zhi-chao, ZHANG Xin-jin, LIU Hui-yun. Experimental Study on Hot Rolled Stainless Steel Clad Plate Produced by TMCP. Journal of Materials Engineering, 2015, 43(7): 62-67.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.07.011      或      http://jme.biam.ac.cn/CN/Y2015/V43/I7/62
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