کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1471506 990352 2007 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterisation of initial atmospheric corrosion carbon steels by field exposure and laboratory simulation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Characterisation of initial atmospheric corrosion carbon steels by field exposure and laboratory simulation
چکیده انگلیسی

The early stages of the evolution of atmospheric corrosion of carbon steels exposed in both a laboratory simulated and a natural atmosphere environment in Shenyang have been observed by in situ scanning electron microscopy. In the case of laboratory cyclic wet–dry tests, even though the chloride content level is very low, filiform corrosion is initiated in the early stage. The filiform corrosion grows in random directions, forming a network of ridges. White nodules nucleate and grow on the ridges during continued corrosion and eventually connect with each other to form the initial corrosion scale. Pits were also found on the surface beneath corrosion products. In the case of a natural atmospheric environment, both filiform corrosion and other localized corrosion, such as pitting and inter-granular attack take place in the initial stage. It is obvious that there is variety of localized corrosion in the initial stage of atmospheric corrosion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 49, Issue 7, July 2007, Pages 2920–2935
نویسندگان
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