Hydrogen embrittlement of low carbon structural steel at macro-, micro- and nano-levels
作者： Muhammad Wasim , Milos B. Djukic
DOI: 10.1016/J.IJHYDENE.2019.11.070
关键词: Nanoindentation 、 Hydrogen embrittlement 、 Carbon steel 、 Composite material 、 Blisters 、 Elastic modulus 、 Materials science 、 Corrosion 、 Hydrogen 、 Young's modulus
摘要: Abstract This paper aims to investigate the effect of hydrogen-induced mechanical degradation low carbon steel at macro-, micro- and nano-levels in hydrogen-rich acidic environments. From test results specimens, a relationship hydrogen concentration corrosion propagation was observed that led significant reductions bulk elastic modulus after 28 days exposure Through microstructural analysis, deformation larger grains, cracks, blisters caused by penetration found as possible cause for this reduction. Moreover, performing nanoindentation on areas interest various specimens planned time periods, influence nano-elastic nano-hardness properties grains determined. The 3D surface profiles are presented paper.
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