Hydrogen embrittlement in ferritic steels
نویسندگان
چکیده
منابع مشابه
Hydrogen embrittlement of ferritic steels: Observations on deformation microstructure, nanoscale dimples and failure by nanovoiding
While hydrogen embrittlement of ferritic steels has been a subject of significant research, one of the major challenges in tackling hydrogen embrittlement is that the mechanism of embrittlement is not fully resolved. This paper reports new observations and interpretation of fracture surface features and deformation microstructures underneath the fracture surface, providing a mechanistic view of...
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The essential facts about the nature of the hydrogen embrittlement of steels have now been known for 140 years. It is diffusible hydrogen that is harmful to the toughness of iron. It follows, therefore, that the harmful influence of diffusible hydrogen can be mitigated by preventing its entry into steel or by rendering it immobile once it penetrates the material. This review deals with the meth...
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Characteristics of tempered martensite embrittlement (TME), hydrogen embrittlement (HE), and stress corrosion cracking (SCC) in high-strength steels are reviewed. Often, it is important to determine unambiguously by which of these mechanisms failure occurred, in order to suggest the right actions to prevent failure recurrence. To this aim, samples made of high-strength AISI 4340 alloy steel wer...
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In order to understand retention and release behaviors of plasma-loaded hydrogen in ferritic steels, hydrogen depth profiles were examined by means of a tritium imaging plate technique (TIPT). Hydrogen release was strongly affected by trapping effect in bulk and/or barrier effect of surface oxide layers during long term storage in air at room temperature (RT) and even heating in vacuum. Helium ...
متن کاملA Comparison of Hydrogen Embrittlement and Stress Corrosion Cracking in High Strength Steels
The purpose of this study was to compare the known behavior of hydrogen embrittled high-strength steel to the characteristics of environmentallyinduced stress corrosion failure where hydrogen is continuously generated at the specimen surface. The incubation time for the initiation of slow crack growth was accelerated by prestressing for a fixed time below the lower critical limit. These results...
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ژورنال
عنوان ژورنال: Applied Physics Reviews
سال: 2020
ISSN: 1931-9401
DOI: 10.1063/5.0012851