| 不同冷却制度下X100管线钢组织特征及力学性能 |
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| 引用本文： | 周民,杜林秀,刘相华.不同冷却制度下X100管线钢组织特征及力学性能[J].钢铁,2011,46(2):74-80. |
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| 作者姓名： | 周民 杜林秀 刘相华 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金重点资助项目(50634030) |
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| 摘 要： | 采用热模拟试验机和试验轧机研究了X100管线钢连续冷却相变规律及不同冷却制度下显微组织特征及力学性能变化规律.研究结果表明:随冷却速度升高及终冷温度降低,试验钢显微组织由针状铁素体过渡至板条贝氏体及马氏体,非淬火条件试验钢中马氏体岛或M-A岛为微孪晶马氏体;轧制后直接以30℃/s冷却至450℃左右时,试验钢具有良好强韧...
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| 关 键 词： | 显微组织 力学性能 弛豫 超快冷 |
Microstructure Characteristics and Mechanical Properties of X100 Pipeline Steel in Different Cooling Schedules |
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| ZHOU Min,DU Lin-xiu,LIU Xiang-hua.Microstructure Characteristics and Mechanical Properties of X100 Pipeline Steel in Different Cooling Schedules[J].Iron & Steel,2011,46(2):74-80. |
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| Authors: | ZHOU Min DU Lin-xiu LIU Xiang-hua |
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| Affiliation: | ZHOU Min,DU Lin-xiu,LIU Xiang-hua(State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110004,Liaoning,China) |
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| Abstract: | With a thermal simulator and a laboratory mill,the continuous cooling transformation(CCT) and the microstructure characteristic and mechanical properties of a lab designed pipeline steel in different cooling schedules were studied.It is shown that with cooling rate increasing and finish cooling temperature decreasing,the microstructure evolved from acicular ferrite to lath bainite and martensite,martensite islands or M-A islands are micro-twining martensite in non-quenched steel,the comprehensive mechanical... |
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| Keywords: | microstructure mechanical property relaxation super-fast cooling process |
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