| 管线钢冲击吸收功测量的尺寸效应 |
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| 引用本文： | 吴令萍,陈迎锋,侯世颖,路民旭.管线钢冲击吸收功测量的尺寸效应[J].理化检验(物理分册),2008,44(6):299-302. |
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| 作者姓名： | 吴令萍 陈迎锋 侯世颖 路民旭 |
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| 作者单位： | 北京科技大学,腐蚀与防护中心,北京,100083 |
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| 摘 要： | 对20钢、16Mn钢和X70钢不同宽度试样在-80～40℃范围内进行夏比冲击试验，研究了非标准尺寸试样冲击功与标准试样冲击功之间的关系，比较了大小试样韧脆转变温度的不同；把试验结果与ASTM标准、BS标准进行对比，不同尺寸试样的韧脆转变温度漂移程度相差很大。并对上平台冲击功的换算公式做了修正。
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| 关 键 词： | 冲击功 韧脆转变温度 尺寸效应 管线钢 |
SPECIMEN SIZE EFFECTS ON MEASURING OF IMPACT ENERGY OF PIPELINE STEELS |
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| WU Ling-ping,CHEN Ying-feng,HOU Shi-ying,LU Min-xu.SPECIMEN SIZE EFFECTS ON MEASURING OF IMPACT ENERGY OF PIPELINE STEELS[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2008,44(6):299-302. |
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| Authors: | WU Ling-ping CHEN Ying-feng HOU Shi-ying LU Min-xu |
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| Affiliation: | (Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China) |
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| Abstract: | The correlation between the impact energy of standard sized specimens and sub-sized specimens was investigated through series of Charpy V-Notch （CVN） impact tests on 20, 16Mn and X70 steels at different temperatures ranging from -80 ℃ to 40 ℃, The ductile-brittle transition temperature （DBTT） of specimens with different sizes were also studied. All the results were contrasted to the ASTM and BS standards and a correction of the formula of the upper shelf impact energy was finally reached. |
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| Keywords: | Impact energy Ductile-to-brittle transition temperature Size effect Pipeline steel |
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