In-Situ TEM Study of Hydrogen-Induced Cracking in Carbide-Free Bainitic Steel
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- Wang Yanhui
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University
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- Chen Cheng
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University
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- Zheng Chunlei
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University
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- Zhang Fucheng
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University
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- Zhang Jingwu
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University
書誌事項
- タイトル別名
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- <i>In</i>-<i>Situ</i> TEM Study of Hydrogen-Induced Cracking in Carbide-Free Bainitic Steel
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Carbide-free bainitic steel is a typical high-strength steel and it is very sensitive to hydrogen embrittlement. Studies have shown that the hydrogen embrittlement in bainitic steels was decreased by the addition of aluminium. However, hydrogen embrittlement still exists in these steels. The in-situ tension in transmission electron microscope (TEM) was used to observe and analyse the effect of hydrogen on the dynamic process of dislocation motion and crack nucleation in carbide-free bainitic steel. A special self-made constant deflection device was used to install the specimen in TEM. Before and after hydrogen charging, the movement of dislocations and microcracks can be clearly observed. The results showed that hydrogen can facilitate the emission, multiplication and motion of dislocations. It also demonstrated that hydrogen can enhance the microcrack nucleation, growth and connection of carbide-free bainitic steel.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 54 (5), 729-731, 2013
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204251382272
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- NII論文ID
- 10031168418
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 024456808
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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