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| "高温大变形+超快冷"工艺对X70管线钢组织性能的影响 | |
| 引用本文： | 肖宝亮,许云波,李智杰,张福生,王国栋."高温大变形+超快冷"工艺对X70管线钢组织性能的影响[J].钢铁研究学报,2011,23(3):39-43. |
| 作者姓名： | 肖宝亮 许云波 李智杰 张福生 王国栋 |
| 作者单位： | 1. 首钢技术研究院,北京,100043 2. 东北大学轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004 3. 新疆八一钢铁股份有限公司,新疆,乌鲁木齐,830022 4. 沈阳铸锻工业有限公司,辽宁,沈阳,110142 |
| 基金项目： | 国家自然科学基金资助项目(50504007) |
| 摘 要： | 对比"高温大变形+超快冷"工艺和传统TMCP工艺,研究了80℃/s超快冷条件下的X70管线钢显微组织演变规律、相变动力学和强韧化机制.结果表明,高温大变形后进行超快冷使晶粒细化,试验钢位错密度提高,析出物弥散细小,改善了试验钢的综合性能.另外,随着终冷温度的降低,韧脆转变温度先降后升,过高终冷温度生成的退化珠光体和过低... |
| 关 键 词： | 终冷温度 细晶强化 析出强化 超快速冷却 管线钢 |
Effects of High Temperature Large Deformation and Ultra Fast Cooling Process on Microstructure and Mechanical Properties of X70 Pipeline Steel |
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| XIAO Bao-liang,XU Yun-bo,LI Zhi-jie,ZHANG Fu-sheng,WANG Guo-dong.Effects of High Temperature Large Deformation and Ultra Fast Cooling Process on Microstructure and Mechanical Properties of X70 Pipeline Steel[J].Journal of Iron and Steel Research,2011,23(3):39-43. | |
| Authors: | XIAO Bao-liang XU Yun-bo LI Zhi-jie ZHANG Fu-sheng WANG Guo-dong |
| Affiliation: | XIAO Bao-liang1,XU Yun-bo2,LI Zhi-jie3,ZHANG Fu-sheng4,WANG Guo-dong2(1.Shougang Research Institute of Technology,Beijing 100043,China,2.The State Key Laboratory ofRolling and Automation,Northeastern University,Shenyang 110004,Liaoning,3.Xinjiang BayiIron and Steel Co Ltd,Wulumuqi 830022,Xinjiang,4.Shenyang Casting and Forging IndustrialCo Ltd,Shenyang 110142,China) |
| Abstract: | The microstructural evolution,phase transformation kinetics and strengthening and toughening mechanism of X70 pipeline steel rolled by process of high temperature large deformation and ultra fast cooling were investigated in comparison with traditional TMCP process.It is showed that comprehensive mechanical properties of the tested steel are improved by means of refining grain,increasing dislocation density and refining precipitation in the process of high temperature large deformation and ultra fast coolin... |
| Keywords: | finish cooling temperature grain refinement strengthening precipitation strengthening ultra fast cooling pipeline steel |
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