کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1468902 1510012 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transgranular crack growth in the pipeline steels exposed to near-neutral pH soil aqueous solutions: Discontinuous crack growth mechanism
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Transgranular crack growth in the pipeline steels exposed to near-neutral pH soil aqueous solutions: Discontinuous crack growth mechanism
چکیده انگلیسی
This investigation enabled the identification of a discontinuous crack growth mechanism of pipeline steels in near-neutral pH environments, which was determined from experimental simulations lasting more than 4 months, using a novel experimental setup that had incorporated the synergistic effects of realistic mechanical loading and the changes of environments affected by coating disbonding and CO2 level in the system. The discontinuous crack growth occurs by repeated crack dormancy-active growth cycles. Crack dormancy can be either mechanically or environmentally induced, while the active growth is initiated because of a combined effect of cyclic loading, stress concentration and hydrogen segregation and trapping.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 83, June 2014, Pages 343-354
نویسندگان
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