| 核电锻件用钢SA-508-3-1低温冲击性能不合格原因分析与对策 |
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| 引用本文： | 薛永栋,贺强,郑三妹,段少飞,李雪. 核电锻件用钢SA-508-3-1低温冲击性能不合格原因分析与对策[J]. 大型铸锻件, 2011, 0(6): 28-29 |
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| 作者姓名： | 薛永栋 贺强 郑三妹 段少飞 李雪 |
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| 作者单位： | 中信重工核电研究所,河南,471039 |
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| 摘 要： | 在开发核电堆芯材料SA-508-3-1锻件用钢的过程中,出现局部-20℃的夏氏V形缺口冲击功不合格的问题,且试样邻近部位的冲击值是它的3倍左右.通过对试件的化学成分、晶粒度以及非金属夹杂物的分析确定了Al2O3夹杂是导致-20℃低温冲击不合的主要原因,并提出了工艺改进的方法,保证了核电锻件的一次合格率.
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| 关 键 词： | SA-508-3-1钢 夏氏V形缺口冲击功 非金属夹杂 |
Failure Reason Analysis and Countermeasure for Low Temperature Impact Properties of SA-508-3-1 Nuclear Forging Steel |
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| Xue Yongdong,He Qiang,Zheng Sanmei,Duan Shaofei,Li xue. Failure Reason Analysis and Countermeasure for Low Temperature Impact Properties of SA-508-3-1 Nuclear Forging Steel[J]. Heavy Casting and Forging, 2011, 0(6): 28-29 |
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| Authors: | Xue Yongdong He Qiang Zheng Sanmei Duan Shaofei Li xue |
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| Affiliation: | Xue Yongdong,He Qiang,Zheng Sanmei,Duan Shaofei,Li xue |
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| Abstract: | The failure of-20℃Charpy V impact occurred during investigation of SA-508-3-1 steel for nuclear reactor.The impact toughness of samples closing failure ones exceed 3 times of the latter one.Analyse of grain size and Non-metallic inclusions shows the Al2O3 inclusions is the mainly reason for causing the failure.So an improved technology was searched to ensure the nuclear forging a qualified rate. |
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| Keywords: | SA-508-3-1 steel Charpy V impact Non-metallic inclusions |
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