DH36高强船板钢焊接热模拟实验研究
详细信息 查看官网全文
- 英文论文题名：Experimental study on welding thermal simulation of DH36 high strength ship plate steel
- 论文作者：李少英 ; 韩毅华 ; 朱立光 ; 李琨 ; 许进忠 ; 高爱民
- 英文论文作者：Li Shaoying ; Han Yihua ; Zhu Liguang ; Li Kun ; Xu Jinzhong ; Gao Aimin ; College of Metallurgy & Energy ; Key Laboratory for Advanced Metallurgy Technology ; Hebei Province High Quality Steel Continuous Casting Engineering Technology Research Center ; North China University of Science and Technology
- 年：2016
- 作者机构：华北理工大学冶金与能源学院;河北省高品质钢连铸工程技术研究中心;
- 论文关键词：DH36 ; 焊接热模拟 ; 热影响区 ; 显微组织 ; 夹杂物
- 英文论文关键词：DH36 ; welding thermal simulation ; heat affected zone ; microstructure ; inclusion
- 会议召开时间：2016-05-19
- 会议录名称：第十九届（2016年）全国炼钢学术会议大会报告及论文摘要集
- 语种：中文
- 分类号：TG457.11
- 学会代码：ZGJS
- 会议名称：第十九届（2016年）全国炼钢学术会议
- 会议地点：中国湖南长沙
- 主办单位：中国金属学会炼钢分会
- 学会名称：中国金属学会
- 页数：1
- 文件大小：43k
- 原文格式：O
- 会议级别：全国
摘要
经过真空冶炼、浇注及轧制制备过程,在实验室得到12mm厚DH36船板钢。通过Gleeble3500试验机对其进行了不同线能量下的焊接热模拟实验,采用金相显微镜和扫描电镜观察分析了焊接热影响区的显微组织及夹杂物形貌。研究结果表明,在其它焊接热模拟条件相同的情况下,随着线能量的增加,冷却速度变小,HAZ的晶粒尺寸明显增大。HAZ组织中存在约2μm的椭球形夹杂物,出现在奥氏体晶界上。该复合夹杂物以Al_2O_3和TiO_x为核心,MnS附着在外层。
This paper,taking 12 mm thick DH36 ship plate steel for instance,outlined smelting and rolling process.Welding thermal simulation experiments of different line energies were conducted by Gleeble-3500 test machine.The microstructure and inclusion morphology of the heat affected zone were analyzed by optical microscope and scanning electron microscope.The results showed that with the same other conditions of welding thermal simulation,the enhancement of line energy would reduce the cooling rate,increasing the size of grain.There was 2um ellipsoidal refractory oxide at austenite grain boundaries.The core of composite inclusions included Al2O3 and TiOx.MnS attached to the outer layer.
This paper,taking 12 mm thick DH36 ship plate steel for instance,outlined smelting and rolling process.Welding thermal simulation experiments of different line energies were conducted by Gleeble-3500 test machine.The microstructure and inclusion morphology of the heat affected zone were analyzed by optical microscope and scanning electron microscope.The results showed that with the same other conditions of welding thermal simulation,the enhancement of line energy would reduce the cooling rate,increasing the size of grain.There was 2um ellipsoidal refractory oxide at austenite grain boundaries.The core of composite inclusions included Al2O3 and TiOx.MnS attached to the outer layer.
引文