| Q345E热轧中厚板探伤不合格原因分析 |
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| 引用本文： | 李智丽.Q345E热轧中厚板探伤不合格原因分析[J].理化检验(物理分册),2011(1):53-56. |
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| 作者姓名： | 李智丽 |
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| 作者单位： | 包钢技术中心金相室; |
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| 摘 要： | 通过低倍检验、金相检验和断口分析等方法分析了Q345E热轧中厚板探伤不合格的原因。结果表明:探伤不合格的原因是在热轧板中心区域偏析带存在硫化锰和碳氮化铌夹杂物,并通过控制和调整工艺解决了该问题。
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| 关 键 词： | 热轧中厚板 超声波探伤 夹杂物 偏析 |
Unqualified Reason Analysis on Non-destructure Testing of Q345E Hot Rolling Medium Plate |
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| LI Zhi-li.Unqualified Reason Analysis on Non-destructure Testing of Q345E Hot Rolling Medium Plate[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2011(1):53-56. |
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| Authors: | LI Zhi-li |
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| Affiliation: | LI Zhi-li (Metallographic Laboratory,Technical Center of Baotou Iron and Steel Group,Baotou 014010,China) |
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| Abstract: | The unqualified reason of Q345E hot rolling medium plate by ultrasonic inspection had been analyzed by means of macroscopic examination,metallographic examination,fracture analysis and so on.The results showed that the reason was the segregation zone and the inclusions including manganese sulfide and niobium carbonitride which congregated in the central part of the medium plate.And the problem was solved by adjusting the process. |
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| Keywords: | hot rolling medium plate ultrasonic inspection inclusions segregation |
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