کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1575146 | 1514734 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of H2S partial pressure on the tensile properties of A350LF2 steel in the absence and presence of pre-immersion
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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: Effect of H2S partial pressure on the tensile properties of A350LF2 steel in the absence and presence of pre-immersion Effect of H2S partial pressure on the tensile properties of A350LF2 steel in the absence and presence of pre-immersion](/preview/png/1575146.png)
چکیده انگلیسی
Effect of H2S partial pressure (PH2S) on the tensile properties of A350LF2 steel with and without pre-immersion was investigated by slow strain rate testing and electrochemical impedance spectroscopy. The results show that relative tensile strength and plasticity loss increased with increasing PH2S in the absence and presence of pre-immersion. Greater tensile property damage occurred in steel without pre-immersion compared to that with pre-immersion. The relative plasticity loss increment of steel without pre-immersion was larger than that with pre-immersion as PH2S was increased from 0.1Â MPa to 1.6Â MPa. Fractography exhibited flat brittle fracture on the samples without pre-immersion and mixed ductile-brittle fracture on the pre-immersed samples. Furthermore, the embrittled regions on the fracture surface of pre-immersed specimens increased with PH2S. In addition, no cracks existed in the steel after pre-immersion. The cracks on the fracture surface of steel could be attributed to the combination of tensile stress and high hydrogen concentration induced by the hydrogen diffusion and accumulation during the tensile test.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 609, 15 July 2014, Pages 161-167
Journal: Materials Science and Engineering: A - Volume 609, 15 July 2014, Pages 161-167
نویسندگان
Yameng Qi, Hongyun Luo, Shuqi Zheng, Changfeng Chen, Zhenguo Lv, Maoxian Xiong,