| 控轧控冷Q460高强钢焊接裂纹敏感性研究 |
| |
| 引用本文： | 肖德铭,王学,张祥贵,张永生,刘文虎,张兆弟,史文渊.控轧控冷Q460高强钢焊接裂纹敏感性研究[J].电力建设,2013,34(1):84-87. |
| |
| 作者姓名： | 肖德铭 王学 张祥贵 张永生 刘文虎 张兆弟 史文渊 |
| |
| 作者单位： | 1.中国能源建设集团天津电力建设公司，天津市 300041；2.武汉大学动力与机械学院，武汉市 430072; 3.绥中发电有限责任公司，辽宁省葫芦岛市125205 |
| |
| 基金项目： | 华北电网有限公司科技项目(HBDWKJ2010-039) |
| |
| 摘 要： | 对控扎控冷Q460高强钢进行了成分分析和组织观察，在此基础上利用经验公式评价了其热裂纹和再热裂纹敏感性，采用插销试验方法评定了其冷裂纹敏感性。研究结果表明，控扎控冷Q460高强钢降低了碳等合金元素含量，通过晶粒细化提高强度，显著降低了焊接热裂纹和再热裂纹敏感性。该钢的冷裂纹敏感性很小，可以不预热焊接。
|
| 关 键 词： | 控轧控冷(TMCP)Q460钢 热裂纹 裂纹敏感性 插销试验 |
Study on Welding Crack Sensitivity for TMCP Q460 High Strength Steel |
| |
| XIAO Deming,WANG Xue,ZHANG Xianggui,ZHANG Yongsheng,LIU Wenhu,ZHANG Zhaodi,SHI Wenyuan.Study on Welding Crack Sensitivity for TMCP Q460 High Strength Steel[J].Electric Power Construction,2013,34(1):84-87. |
| |
| Authors: | XIAO Deming WANG Xue ZHANG Xianggui ZHANG Yongsheng LIU Wenhu ZHANG Zhaodi SHI Wenyuan |
| |
| Affiliation: | 1.Tianjin Electric Power Construction Company, China Energy Engineering Group， Tianjin 300041, China;2.School of Power and Mechanics Wuhan University, Wuhan 430072, China;3.Suizhong Power Generation Co., Ltd., Huludao 125205, Liaoning Province, China |
| |
| Abstract: | Based on the component analysis and microstructure observation of Q460 high strength steel with thermo mechanical control process (TMCP), its hot crack and reheat crack sensitivity by using experience formula are evaluated in this paper, as well as its cold crack sensitivity by using implant test is evaluated. The research results show that the content of alloy elements is decreased in TMCP Q460 steel, such as carbon, and the welding and reheat crack sensitivity are both significantly reduced due to the strength improvement by grain refinement. Therefore, the steel’s welding doesn’t need preheating due to the low cold crack sensitivity. |
| |
| Keywords: | TMCP Q460 steel hot cracking crack sensitivity implant test |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《电力建设》浏览原始摘要信息 |
|
点击此处可从《电力建设》下载全文 |
|
