کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8012624 | 1517160 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface orientation dependence of hydrogen flux in lenticular martensite of an Fe-Ni-C alloy clarified through in situ silver decoration technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An in situ silver decoration technique was applied to investigate the effect of microstructure on hydrogen flux in an austenite/αâ²-martensite dual-phase Fe-32Ni-0.2C alloy. Using time-resolved hydrogen mapping, the surface orientation of the body-centered cubic lenticular martensite was found to have a significant effect on hydrogen flux. The hydrogen flux was particularly high at the near-ã0â¯0â¯1ã, while it was the lowest at the near-ã1â¯1â¯1ã surface. This dependence of hydrogen flux on the surface orientation is attributed to hydrogen trapping at dislocations in the martensite. Particularly, ã1â¯1â¯1ã twinning-shear in the martensite enhances hydrogen trapping at dislocations, suppressing hydrogen diffusion in the shortest path of grains orientated to ã1â¯1â¯1ã.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 228, 1 October 2018, Pages 273-276
Journal: Materials Letters - Volume 228, 1 October 2018, Pages 273-276
نویسندگان
Motomichi Koyama, Daisuke Yamasaki, Kaneaki Tsuzaki,