کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7708246 1497321 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrogen trapping and hydrogen induced cracking of welded X100 pipeline steel in H2S environments
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Hydrogen trapping and hydrogen induced cracking of welded X100 pipeline steel in H2S environments
چکیده انگلیسی
Hydrogen induced cracking (HIC) susceptibility of the welded X100 pipeline steel was evaluated in NACE “A” solution at room temperature according to the NACE TM0284-2011 standard. Both the kinetic parameters of the permeability (J∞L), the apparent diffusivity (Dapp) and the concentration of reversible and irreversible hydrogen in the base metal and welded joint of X100 pipeline steel were quantitatively investigated by hydrogen permeation test. The results showed that the welded joint with an inhomogeneous microstructure had a higher trap density and more susceptible to HIC due to two orders of magnitude larger in the concentration of irreversible hydrogen than that of base metal, though all presenting poor HIC resistance for both base metal and the welded joint. The HIC cracks initiated from the inclusions enriching in Al, Ca, Si, Mn. The cracks are primarily transgranular, accompanying with limited intergranular ones.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 4, 25 January 2018, Pages 2293-2306
نویسندگان
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