| Q345R中厚板探伤不合格原因分析 |
| |
| 引用本文： | 王宝君,臧涛,蔺晓亮.Q345R中厚板探伤不合格原因分析[J].物理测试,2019,37(6):55-58. |
| |
| 作者姓名： | 王宝君 臧涛 蔺晓亮 |
| |
| 作者单位： | 酒泉钢铁集团技术中心，甘肃 嘉峪关 735100 |
| |
| 摘 要： | 采用金相显微镜、电子探针、能谱仪等对 Q345R中厚板探伤不合格试样进行了分析。结果表明：中厚板心部有偏析，偏析处出现贝氏体组织和夹杂物是探伤不合格的原因。通过优化炼钢工艺，改进轧制冷却工艺，可减少夹杂物及中心贝氏体。
|
| 关 键 词： | 偏析 贝氏体 夹杂物 Q345R |
| 收稿时间： | 2019-03-20 |
Causes analysis of disqualification of Q345R medium and heavy plate in inspection |
| |
| WANG Bao-jun,ZANG Tao,LIN Xiao-liang.Causes analysis of disqualification of Q345R medium and heavy plate in inspection[J].Physics Examination and Testing,2019,37(6):55-58. |
| |
| Authors: | WANG Bao-jun ZANG Tao LIN Xiao-liang |
| |
| Affiliation: | Technology Center of Jiuquan Iron and Steel Group Corporation，Jiayuguan 735100，China） |
| |
| Abstract: | The unqualified specimens of Q345R medium and heavy plate were analyzed by metallographic microscope， electron probe and energy dispersive spectrometer. The results showed that there was segregation in the center of the plate，and the bainite structure and inclusions at the segregation were the cause of disqualification. Inclusions and the central bainite could be decreased by optimizing the steel making process and improving the cooling process. |
| |
| Keywords: | segregation bainite inclusion Q345R |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《物理测试》浏览原始摘要信息 |
|
点击此处可从《物理测试》下载全文 |
