| 普通碳素钢渗氮后的氢脆敏感性 |
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| 引用本文： | 黄志涛,田文怀,苏永安.普通碳素钢渗氮后的氢脆敏感性[J].理化检验(物理分册),2010(7):423-426. |
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| 作者姓名： | 黄志涛 田文怀 苏永安 |
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| 作者单位： | 北京科技大学材料科学与工程学院,北京100083 |
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| 基金项目： | 基金项目：国家自然科学基金资助项目（No.50671012） |
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| 摘 要： | 为了研究渗氮处理对钢的氢脆敏感性的影响,对气体渗氮处理的普通碳素钢进行了拉伸试验,对其断口进行了扫描电镜观察和显微组织分析。结果表明:渗氮层发生了氢脆延迟断裂,未渗氮部位发生了韧性断裂;渗氮处理增加了钢的氢脆敏感性。
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| 关 键 词： | 碳素钢 气体渗氮 显微组织 氢脆敏感性 |
Sensitivity of Hydrogen Embrittlement of Carbon Steel after Nitriding |
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| HUANG Zhi-tao,TIAN Wen-huai,SU Yong-an.Sensitivity of Hydrogen Embrittlement of Carbon Steel after Nitriding[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2010(7):423-426. |
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| Authors: | HUANG Zhi-tao TIAN Wen-huai SU Yong-an |
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| Affiliation: | (School of Materials Science and Technology, University of Science and Technology Beijing, Beijing 100083, China) |
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| Abstract: | The effect of gas nitriding treatment on the sensitivity of hydrogen embrittlement of carbon steel had been investigated by observing the microstructure and fracture models by using of scanning electron microcopy （SEM） and optical microscopy （OM）. The results showed that the fracture mechanism of nitriding layer was hydrogen embrittlement but ductile fracture existed in substance area of the sample. It was concluded that the gas nitriding increased the sensitivity of hydrogen embrittlement in carbon steel. |
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| Keywords: | carbon steel gas nitriding microstructure hydrogen embrittlement sensitivity |
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