کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1678270 1009936 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Atom probe, AFM, and STM studies on vacuum-fired stainless steels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Atom probe, AFM, and STM studies on vacuum-fired stainless steels
چکیده انگلیسی

The surface morphology of grades 304L and 316LN stainless steels, after low-temperature bake-out process and vacuum annealing, has been studied by atomic force microscopy (AFM) and scanning tunnelling microscopy (STM). The local elemental composition on the surface before and after thermal treatment has been investigated by atom probe (AP) depth profiling measurements. After vacuum annealing, AFM and STM show significant changes in the surface structure and topology. Recrystallization and surface reconstruction is less pronounced on the 316LN stainless steel. AP depth profiling analyses result in noticeable nickel enrichment on the surface of grade 304L samples. Since hydrogen recombination is almost controlled by surface structure and composition, a strong influence on the outgassing behaviour by the particular surface microstructure can be deduced.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultramicroscopy - Volume 109, Issue 5, April 2009, Pages 563–567
نویسندگان
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