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Hydrogen-induced cracking susceptibility and hydrogen trapping efficiency of different microstructure X80 pipeline steel

Huang, F. ; Li, X. G. ; Liu, J. ; Qu, Y. M. ; Jia, J. ; Du, C. W.

Journal of materials science, 2011-02, Vol.46 (3), p.715-722 [Periódico revisado por pares]

Boston: Springer US

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Título:
Hydrogen-induced cracking susceptibility and hydrogen trapping efficiency of different microstructure X80 pipeline steel
Autor: Huang, F. ; Li, X. G. ; Liu, J. ; Qu, Y. M. ; Jia, J. ; Du, C. W.
Assuntos: Aluminum ; Characterization and Evaluation of Materials ; Chemical composition ; Chemistry and Materials Science ; Classical Mechanics ; Cracks ; Crystallography and Scattering Methods ; Efficiency ; Emission analysis ; Energy transmission ; Field emission microscopy ; Fracture mechanics ; Heat treatment ; High strength low alloy steels ; Hydrogen ; Hydrogen sulfide ; Inclusions ; Manganese ; Materials Science ; Microscopy ; Microstructure ; Morphology ; Organic chemistry ; Permeability ; Pipe lines ; Polymer Sciences ; Precipitates ; Scanning electron microscopy ; Solid Mechanics ; Steels ; Transmission electron microscopy ; Trapping
É parte de: Journal of materials science, 2011-02, Vol.46 (3), p.715-722
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The hydrogen-induced cracking (HIC) susceptibility of the X80 steel in H 2 S environment and its heated-treatment microstructure was evaluated. The field emission scanning electron microscopy (FE-SEM), high resolution transmission electron microscopy (HR-TEM) and energy dispersive spectroscopy (EDS) were employed to study the morphology and chemical composition of the inclusions, precipitates and HIC cracks in the X80 steel. The hydrogen trapping efficiency was investigated by measuring the permeability ( J ∞ L) and the apparent diffusivity ( D app ). The results showed that heat-treated specimens had lower trapping efficiency, but were more susceptible to HIC. Most of the HIC cracks initiated from the inclusions rich in Mn, Al, Ca, and Ti, and propagated transgranularly in the original and air cooled specimens, but mainly intergranularly in water quenched specimens.
Editor: Boston: Springer US
Idioma: Inglês

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Hydrogen-induced cracking susceptibility and hydrogen trapping efficiency of different microstructure X80 pipeline steel

Huang, F. ; Li, X. G. ; Liu, J. ; Qu, Y. M. ; Jia, J. ; Du, C. W.

Boston: Springer US

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