| 连续油管用钢CT80低周疲劳性能研究 |
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| 引用本文： | 饶添荣,朱涛,王鑫.连续油管用钢CT80低周疲劳性能研究[J].冶金信息导刊,2012(5):26-29. |
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| 作者姓名： | 饶添荣 朱涛 王鑫 |
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| 作者单位： | [1]马鞍山钢铁股份公司技术中心,马鞍山243000 [2]安徽工业大学,马鞍山243002 |
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| 摘 要： | 对CT80连续油管用钢进行了低周疲劳性能试验，通过应变幅为0．4％-1．5％，7个级别的恒应变控制实验，研究了CT80的循环特性、疲劳特性，确定了疲劳寿命与应变幅之间的关系式，并使用扫描电镜对疲劳断口形貌进行了观察和分析。结果表明：该材料为循环软化，疲劳裂纹起始于试样表面，呈多源性特征。
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| 关 键 词： | CT80 低周疲劳 循环特性 疲劳断口 |
RESEARCH ON THE LOW CYCLE FATIGUE PROPERTIES OF CT80 GRADE COILED TUBE STEEL |
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| Rao Tianrong Zhu Tao Technological Center of Maanshan Iron and SteelGroup Co.,Ltd.,Maanshan,Wang Xin.RESEARCH ON THE LOW CYCLE FATIGUE PROPERTIES OF CT80 GRADE COILED TUBE STEEL[J].Metallurgical Information Review,2012(5):26-29. |
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| Authors: | Rao Tianrong Zhu Tao Technological Center of Maanshan Iron and SteelGroup Co Ltd Maanshan Wang Xin |
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| Affiliation: | ( School of Material science and Engineering, Anhui University of Technology, Maanshan 243002) |
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| Abstract: | The low cycle fatigue behavior test of the CTSO grade coiled tube steel was introduced. In the experiment, the amplitude of strain varies from 0.4% to 1.5%, in seven steps, under steady strain control. The cyclic properties and the fatigue properties have been investigated. The strain-cycle for curves was presented. The fatigue fracture feature was analyzed by observing crack profile under SEM. It is concluded that CTSO steel were cyclic softening; fatigue cracks always originates from the sample surface and multi-fatigue source characteristi. |
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| Keywords: | CT80 low cycle fatigue cyclic properties fracture |
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