کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7894135 | 1509965 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Failure mechanism transition of hydrogen embrittlement in AISI 304 K-TIG weld metal under tensile loading
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Failure mechanism transition of hydrogen embrittlement in AISI 304 K-TIG weld metal under tensile loading Failure mechanism transition of hydrogen embrittlement in AISI 304 K-TIG weld metal under tensile loading](/preview/png/7894135.png)
چکیده انگلیسی
The effect of hydrogen on the tensile properties of AISI 304 K-TIG weld metal is investigated in this study. Fractographic analysis demonstrates a transition from quasi-cleavage/cleavage fracture to intergranular fracture in the brittle zone as the hydrogen-charging current density increases, which is attributed to the interplay of crystalline defect, hydrogen atoms, and αⲠmartensite transformation sites. It is believed that at low current density, αⲠmartensite nucleates and grows homogeneously in the interior of the grain. At high current density, the stress-induced αⲠmartensite forms preferentially at the grain boundary, which undergoes severe strain localisation and hydrogen atom segregation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 130, January 2018, Pages 241-251
Journal: Corrosion Science - Volume 130, January 2018, Pages 241-251
نویسندگان
Xiaogang Li, Baoming Gong, Caiyan Deng, Yizhe Li,