Phase Transformations and Relaxation Phenomena in Hydrogen‐Charged CrNiMn and CrNi Stable Austenitic Stainless Steels

Gavriljuk, V.G.; Hänninen, Hannu; Smouk, S.; Tarasenko, A. S.; Tereshchenko, A.S.; Ullakko, K.

doi:10.1002/9781118803363.ch78

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…in [29]. At the same time, the observations of the cracks opening during electrolytic charging and its absence in case of the gaseous hydrogenation are rather old.…”

Section: Discussionmentioning

confidence: 99%

Hydrogen Grain Boundary Segregation and Migration in the Alpha-Iron

Gavriljuk¹,

Teus²

2017

Metallofiz. Noveishie Tekhnol.

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Based on the difference in diffusion mechanisms of substitutional and interstitial atoms and using molecular dynamics simulation of hydrogen migration, it is shown that accelerated hydrogen flux in the polycrystalline iron observed during cathodic charging cannot originate from the enhanced hydrogen grain-boundary diffusion. A possible role of grain-boundary cracking is supposed.Key words: hydrogen diffusion, grain boundaries, molecular dynamics simulation.Ґрунтуючись на відмінностях механізмів дифузії атомів заміщення та втілення і використовуючи молекулярно-динамічні розрахунки міґрації атомів Гідроґену, показано, що прискорений потік водню в полікристалі-чному залізі, який спостерігається в процесі катодного наводнення, не може бути наслідком прискореної зерномежової дифузії водню. Розгляда-ється можлива роль зерномежового розтріскування.Ключові слова: дифузія водню, межі зерен, молекулярна динаміка.Основываясь на отличиях механизмов диффузии атомов замещения и внедрения и используя моделирование методом молекулярной динамики миграции водорода, показано, что ускоренный поток водорода в поликри-сталлическом железе, который наблюдается в процессе катодного наводо-раживания, не может быть следствием ускоренной зернограничной диф-фузии водорода. Рассмотрена возможная роль зернограничного растрес-кивания.

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“…in [29]. At the same time, the observations of the cracks opening during electrolytic charging and its absence in case of the gaseous hydrogenation are rather old.…”

Section: Discussionmentioning

confidence: 99%

Hydrogen Grain Boundary Segregation and Migration in the Alpha-Iron

Gavriljuk¹,

Teus²

2017

Metallofiz. Noveishie Tekhnol.

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“…The presence of hydrogen in metallic materials may result in a decrease in plasticity and the formation of locally brittle damage, in a phenomenon called hydrogen embrittlement (HE) [4,5,9,13,16,17,20]. This phenomenon, despite the huge amount of research devoted to it, has still not been fully explained.…”

Section: Introductionmentioning

confidence: 99%

Response of hydrogen charging diffusion of the austenitic stainless steel AISI 310s

Rutkowska-Gorczyca,

Dziubek,

Wiśniewski

2024

Combustion Engines

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The subject of hydrogen embrittlement seems to be more and more up-to-date and needed to be explored. World research teams working on this issue have not developed a clear method of preventing this process. The conclusion is that this issue should be approached individually, depending on the type of material, its structure and operating conditions. The problem will escalate in the near future as a result of the planned replacement of the traditional energy sources used so far with hydrogen energy. The paper presents the method of electrochemical hydrogenation, which reflects the conditions of galvanic coating of metallic materials used in the automotive industry. The aim of the research was to determine the influence of the time of hydrogenation on the properties and microstructure of austenitic steel.

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Phase Transformations and Relaxation Phenomena in Hydrogen‐Charged CrNiMn and CrNi Stable Austenitic Stainless Steels

Cited by 2 publications

References 28 publications

Hydrogen Grain Boundary Segregation and Migration in the Alpha-Iron

Hydrogen Grain Boundary Segregation and Migration in the Alpha-Iron

Response of hydrogen charging diffusion of the austenitic stainless steel AISI 310s

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