کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1573359 | 1514674 | 2016 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrogen trapping and hydrogen induced mechanical degradation in lab cast Fe-C-Cr alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Hydrogen trapping and hydrogen induced mechanical degradation in lab cast Fe-C-Cr alloys Hydrogen trapping and hydrogen induced mechanical degradation in lab cast Fe-C-Cr alloys](/preview/png/1573359.png)
چکیده انگلیسی
This study evaluates the hydrogen trapping ability of Cr23C6 precipitates and hence its effect on the hydrogen induced mechanical degradation in laboratory cast Fe-C-Cr materials. Two main conditions are compared: an as-quenched and a quenched and tempered condition containing carbides. Three materials were cast with a variable carbon content to study the role of the carbides in alloys with variable strength level. Mechanical tests are performed on both in-situ hydrogen charged and uncharged tensile samples. The presence of carbides decreases the susceptibility to hydrogen embrittlement. Thermal desorption spectroscopy and hot/melt extraction are performed to determine which trapping sites are active. A clear correlation between the degree of hydrogen induced embrittlement and the hydrogen mobility is confirmed by determining the hydrogen diffusivity and linking it to the available trapping sites. A slightly modified temper treatment is applied to vary the carbide size and evaluate its effect on the hydrogen embrittlement resistance and the trapping ability of the present carbides.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 669, 4 July 2016, Pages 134-149
Journal: Materials Science and Engineering: A - Volume 669, 4 July 2016, Pages 134-149
نویسندگان
T. Depover, K. Verbeken,