| 含复合(Ti,Mo)C析出相的马氏体钢的氢捕获与解吸附 |
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| 引用本文： | 靳晓坤,徐乐,尉文超,姚可夫,时捷,王毛球.含复合(Ti,Mo)C析出相的马氏体钢的氢捕获与解吸附[J].稀有金属材料与工程,2020,49(6):1901-1906. |
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| 作者姓名： | 靳晓坤 徐乐 尉文超 姚可夫 时捷 王毛球 |
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| 作者单位： | 钢铁研究总院特钢所,钢铁研究总院特钢所,钢铁研究总院特钢所,清华大学材料学院,钢铁研究总院特钢所,钢铁研究总院特钢所 |
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| 基金项目： | 国家重点研发项目（2016YFB0300104, 2016YFB0300102, 2017YFB0304802） |
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| 摘 要： | 采用热脱氢分析装置 (TDS) 研究了含复合 (Ti,Mo)C析出相的马氏体钢的氢的捕获与解吸附行为。结果表明,36-60 nm的未溶球形(Ti,Mo)复合析出相在室温电化学充氢过程中不能捕获氢,而回火析出的1-5 nm的复合 (Ti,Mo)C析出相是有效的氢陷阱,尽管其氢陷阱激活能相对较低,为16.4-22.1 kJ/mol,与晶界、位错处的氢陷阱激活能相近,同时远低于纯的共格TiC析出相的氢陷阱激活能,但在大气中放置时,被回火析出的1-5 nm的复合 (Ti,Mo)C析出相捕获的氢无法解吸。
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| 关 键 词： | 马氏体钢 (Ti Mo)C析出相 氢陷阱 热脱氢分析 |
| 收稿时间： | 2019/2/25 0:00:00 |
| 修稿时间： | 2019/3/4 0:00:00 |
Hydrogen trapping and desorption in a martensitic steel with mixed (Ti,Mo)C precipitates |
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| jinxiaokun,xule,yuwenchao,yaokefu,shijie and wangmaoqiu.Hydrogen trapping and desorption in a martensitic steel with mixed (Ti,Mo)C precipitates[J].Rare Metal Materials and Engineering,2020,49(6):1901-1906. |
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| Authors: | jinxiaokun xule yuwenchao yaokefu shijie and wangmaoqiu |
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| Abstract: | Hydrogen trapping and desorption in a martensitic steel with mixed (Ti,Mo)C precipitates have been investigated by means of Thermal Desorption Spectrometry (TDS) analysis. Results indicated that the spherical (Ti,Mo)C precipitates of 36-60 nm could not absorb hydrogen during electrochemical charging, while the (Ti,Mo)C precipitates of 1-5 nm were effective hydrogen trapping sites. In spite of a relatively low desorption activation energy of 16.4 kJ/mol, which is far lower than that from pure coherent TiC, the hydrogen trapped by the fine (Ti,Mo)C carbides could not desorb during atmospheric exposure. |
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| Keywords: | martensitic steel (Ti Mo)C precipitates hydrogen trapping thermal desorption spectrometry |
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