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Hydrogen trapping and desorption in a martensitic steel with mixed (Ti,Mo)C precipitates
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National Key Research and Development Program(2016YFB0300104, 2016YFB0300102, 2017YFB0304802)

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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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[jinxiaokun, xule, yuwenchao, yaokefu, shijie, 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.]
DOI:10.12442/j. issn.1002-185X.20190155

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History
  • Received:February 25,2019
  • Revised:March 04,2019
  • Adopted:March 14,2019
  • Online: July 09,2020
  • Published: