Analysis of Q345B Steel with Substandard Elongation

机译：Q345B钢与不合标准伸长率分析

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摘要

This paper does extend composition analysis and heat treatment on Q345B samples with substandard elongation; does tensile test,metallographic examination and organizational analysis at tensile fracture on the samples before and after heat treatment.The results show that: the root cause of the sub-sample extension is due to the too quickly cooling,which leads to abnormalities caused by the microstructure of materials.The paper also proposes improvement measures.

机译：本文确实在Q345B样品上扩展了组成分析和热处理，不合格伸长率;在热处理之前和之后样品上的拉伸骨折的拉伸试验，金相检查和组织分析。结果表明：子样本延伸的根本原因是由于冷却太快，这导致由此引起的异常材料的微观结构。本文还提出了改进措施。

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来源
《Asia steel international conference》|2012年||共4页
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作者
Sun Yuhong; Li Tiehu;
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原文格式 PDF
正文语种
中图分类钢铁冶炼（黑色金属冶炼）（总论）;
关键词
substandard elongation; composition analysis; heat treatment; tensile test; metallographic examination;

机译：不合标准的伸长;组成分析;热处理;拉伸试验;金相检查;

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2. The Finite Element Analysis of the Strain Release Coefficients of the Q345b Steel [J] . Zhuangnan Zhang, Lu Tian, Yuanzhi Wang MATEC Web of Conferences . 2016,第1期

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3. Fatigue behaviour of G20Mn5QT cast steel and butt welds with Q345B steel [J] . Han Qinghua, Guo Qi, Yin Yue, International journal of steel structures . 2016,第1期

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4. Analysis of Q345B Steel with Substandard Elongation [C] . Sun Yuhong, Li Tiehu Asia steel international conference . 2012

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8. Centrifugal Castings Made from Substandard Billets and Hot Top Crop from Inland Gun Steel Heats [R] . Wallace, J. F. 1943

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Analysis of Q345B Steel with Substandard Elongation

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