Rolling Process and Mechanical Properties of Q460 High-Strength Heavy-Gauge Steel Plate
摘 要
通过合理的成分设计及严格的控轧控冷工艺,成功开发了高强度120 mm厚Q460钢板,研究了轧制工艺对其显微组织和力学性能的影响。结果表明:不同轧制工艺下,试验钢板的显微组织均为铁素体加珠光体的混合组织,心部存在较明显的带状组织;提高轧制后的冷却强度,可略微提高钢板的强度,但其冲击韧性不会改善;提高待温厚度可在一定程度上细化铁素体及珠光体组织,减少带状组织,在强度基本不变的前提下显著提高钢板的冲击韧性。
Abstract
By the reasonable composition design and uncompromising controlled rolling and controlled cooling process, 120 mm thick Q460 steel plate was developed successfully. The effects of rolling process on the microstructure and mechanical properties of the plate were investigated. The results show that under different process conditions, the basic microstructures of the tested plate all consisted of ferrite and pearlite and showed an obvious band-like shape in the core. The strength of the steel plate was slightly improved by the increasing cooling intensity after rolling while the toughness was not ameliorated. The ferrite and pearlite microstructures were obviously refined, the band-like microstructure amount decreased, and the toughness of the steel plate was significantly improved meanwhile the strength kept unchanged by the increase of the intermediate holding thickness.
中图分类号 TG142.1 DOI 10.11973/jxgccl201702014
所属栏目 新材料 新工艺
基金项目
收稿日期 2015/10/28
修改稿日期 2016/11/17
网络出版日期
作者单位点击查看
备注宋欣(1982-),男,河南信阳人,工程师,硕士。
引用该论文: SONG Xin,CHEN Tie-qiang,HUANG Shao-shuai,ZHENG Hui-ping,ZHANG Xue-feng,BAI Xue-jun. Rolling Process and Mechanical Properties of Q460 High-Strength Heavy-Gauge Steel Plate[J]. Materials for mechancial engineering, 2017, 41(2): 67~71
宋欣,谌铁强,黄少帅,郑会平,张学峰,白学军. 高强度特厚Q460钢板的轧制工艺与力学性能[J]. 机械工程材料, 2017, 41(2): 67~71
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参考文献
【1】沈继刚,李宏图,王勇.浅论我国大单重特厚钢板的轧制生产技术[J].宽厚板,2011,17(2):23-24.
【2】TANCRET F, BHADESHIA H K D H, MACKAY D J C. Design of a creep resistant nickel base upper alloy for power plant applications:Part 1-Mechanical properties modelling[J]. Materials Science and Technology, 2003, 19(3):283-290.
【3】李德发,王世森,邢淑清.轧后冷却工艺对铌钛微合金化低碳贝氏体钢组织性能影响[J].钢铁,2013,48(3):71-75.
【4】贺信莱,尚成嘉,杨善武.高性能低碳贝氏体钢的组织细化技术及其应用[J].金属热处理,2007,32(12):1-10.
【5】GOLDSMITH N T. Deep focus; a digital image processing technique to produce improved focal depth in light microscopy[J]. Image Anal Stereol, 2000, 19(4):163-167.
【6】林滋泉,敖列哥,郝森.鞍钢钒、钛、铌微合金钢的应用与开发[J].钢铁钒钛,2001,22(1):1-2.
【7】SENUMA T, KAMEDA M, SUEHIRO M. Influence of hot rolling and cooling conditions on the grain refinement of hot rolled extralow-carbon steel bands[J].ISIJ International,1998,38(6):587-594.
【8】胡贤磊,赵忠,矫志杰,等.中厚板控制轧制过程控温厚度的优化计算[J].轧钢,2005,22(2):16-19.
【2】TANCRET F, BHADESHIA H K D H, MACKAY D J C. Design of a creep resistant nickel base upper alloy for power plant applications:Part 1-Mechanical properties modelling[J]. Materials Science and Technology, 2003, 19(3):283-290.
【3】李德发,王世森,邢淑清.轧后冷却工艺对铌钛微合金化低碳贝氏体钢组织性能影响[J].钢铁,2013,48(3):71-75.
【4】贺信莱,尚成嘉,杨善武.高性能低碳贝氏体钢的组织细化技术及其应用[J].金属热处理,2007,32(12):1-10.
【5】GOLDSMITH N T. Deep focus; a digital image processing technique to produce improved focal depth in light microscopy[J]. Image Anal Stereol, 2000, 19(4):163-167.
【6】林滋泉,敖列哥,郝森.鞍钢钒、钛、铌微合金钢的应用与开发[J].钢铁钒钛,2001,22(1):1-2.
【7】SENUMA T, KAMEDA M, SUEHIRO M. Influence of hot rolling and cooling conditions on the grain refinement of hot rolled extralow-carbon steel bands[J].ISIJ International,1998,38(6):587-594.
【8】胡贤磊,赵忠,矫志杰,等.中厚板控制轧制过程控温厚度的优化计算[J].轧钢,2005,22(2):16-19.
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