The Potential of the Internal Friction Technique to Evaluate the Role of Vacancies and Dislocations in the Hydrogen Embrittlement of Steels,Steel Research International

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The Potential of the Internal Friction Technique to Evaluate the Role of Vacancies and Dislocations in the Hydrogen Embrittlement of Steels
Steel Research International ( IF 1.9 ) Pub Date : 2021-03-27 , DOI: 10.1002/srin.202100037
Liese Vandewalle ₁ , Milan J. Konstantinović ₂ , Tom Depover ₁ , Kim Verbeken ₁

Affiliation

Hydrogen embrittlement of steels is known to have considerable impact in many engineering sectors. To be able to mitigate the hydrogen embrittlement problem, a profound comprehension of the interaction of hydrogen with the steel microstructure is required. Especially the interaction of hydrogen with dislocations and vacancies is very relevant as these defects are known to play an important role in hydrogen embrittlement. At present, thermal desorption spectroscopy is mostly used to study hydrogen–defect interactions. However, information obtained solely by this technique is insufficient to obtain a full understanding of the interaction of hydrogen with these defects in the steel microstructure. Herein, the use of internal friction, as a complementary technique to thermal desorption spectroscopy, to reveal the interaction of hydrogen with dislocations and vacancies, is reviewed based on the present understanding in the literature. Furthermore, the opportunities to use internal friction to characterize the interaction between hydrogen and these defects and to give more insight into the hydrogen embrittlement mechanism are discussed. It is demonstrated that internal friction has not yet been used to its full potential for this purpose, although it entails the opportunity to develop fundamental insights into the hydrogen embrittlement phenomenon.

中文翻译：

内部摩擦技术评估空位和位错在钢氢脆中的作用的潜力

众所周知，钢的氢脆会对许多工程领域产生相当大的影响。为了能够减轻氢脆问题，需要深入了解氢与钢微观结构的相互作用。尤其是氢与位错和空位的相互作用非常重要，因为已知这些缺陷在氢脆中起着重要作用。目前，热解吸光谱主要用于研究氢缺陷相互作用。然而，仅通过这种技术获得的信息不足以充分了解氢与钢显微组织中这些缺陷的相互作用。在此，使用内摩擦作为热解吸光谱的补充技术，为了揭示氢与位错和空位的相互作用，基于目前文献中的理解进行了回顾。此外，讨论了使用内摩擦来表征氢与这些缺陷之间的相互作用以及更深入地了解氢脆机制的机会。事实证明，内摩擦尚未为此目的发挥其全部潜力，尽管它需要有机会深入了解氢脆现象。

更新日期：2021-06-04

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