| 14MnNbq钢中夹杂物对焊接接头低温冲击功的影响 |
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| 引用本文： | 陈鹏,蒋海生.14MnNbq钢中夹杂物对焊接接头低温冲击功的影响[J].西南交通大学学报,2000,35(5):457-464. |
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| 作者姓名： | 陈鹏 蒋海生 |
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| 作者单位： | 1. 西南交通大学材料系,四川,成都,610031
2. 宝鸡工程机械厂,陕西,宝鸡,721006 |
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| 摘 要： | 对新钢种１４ＭｎＮｂｑ中存在的夹杂物及其对焊接接头的性能影响进行了分析研究。结果表明：１４ＭｎＮｂｑ钢中存在大量的硫化物（ＭｎＳ，ＦｅＳ）等非金属夹杂物，这些非金属夹杂物数量较多，分布极不均匀，导致了焊接接头低温冲击韧性值离散性大，数值偏低。
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| 关 键 词： | 焊接结点 非金属夹杂 冲击韧性 锰钢 |
The Effect of the Non-Metallic Inclusion in 14MnNbq Steel on the Impact Value of Welded Joints at Low Temperature |
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| CHEN Peng,JIANG Hai-sheng.The Effect of the Non-Metallic Inclusion in 14MnNbq Steel on the Impact Value of Welded Joints at Low Temperature[J].Journal of Southwest Jiaotong University,2000,35(5):457-464. |
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| Authors: | CHEN Peng JIANG Hai-sheng |
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| Abstract: | The effect of the non metallic inclusion in 14MnNbq steel on the mechanical properties of welded joints is discussed and analyzed. The result shows that there are a lot of sulfide inclusions (MnS, FeS) in 14MnNbq steel. These non metallic inclusions badly dispersed in the steel are harmful to the mechanical properties of the welded joint. Their existence will decrease the impact value of the welded joint at low temperature, and increase the discreteness of the measured data.WT5HZ] |
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| Keywords: | welded joints non metallic inclusions impact values |
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