کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9759229 | 1497700 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of hydrogen on the mechanical properties of X-70 pipeline steel in diluted NaHCO3 solutions at different heat treatments
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of hydrogen on the mechanical properties of X-70 pipeline steel in diluted NaHCO3 solutions at different heat treatments Effect of hydrogen on the mechanical properties of X-70 pipeline steel in diluted NaHCO3 solutions at different heat treatments](/preview/png/9759229.png)
چکیده انگلیسی
Studies were carried out on the effect of hydrogen on the mechanical properties of X-70 pipeline steel at different heat treatment conditions. Heat treatments were carried out as-received, under water-quenched, water-quenched and tempered and water-sprayed conditions. The solutions used consisted of 0.1, 0.05, 0.01 and 0.005Â M sodium bicarbonate (NaHCO3) for the slow strain rate testing (SSRT) technique and hydrogen permeation measurements at 50âC. Hydrogen permeation increased with solution concentration and was maximum for the quenched steel. Pre-charging of specimens with hydrogen did not have any effect on the mechanical properties of the as-received or water-sprayed steel but it did in the quenched and the quenched+tempered steels. In all the heat treatments, the mechanical properties of the steel were seriously affected only in 0.005Â M NaHCO3, the steel in the quenched condition being the most susceptible. The cracking mechanism is dominated by anodic dissolution, film rupture of the steel in the as-received and water-sprayed conditions. But it was dominated by hydrogen embrittlement for the quenched and the quenched+tempered steels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 30, Issue 12, September 2005, Pages 1317-1322
Journal: International Journal of Hydrogen Energy - Volume 30, Issue 12, September 2005, Pages 1317-1322
نویسندگان
A. Torres-Islas, V.M. Salinas-Bravo, J.L. Albarran, J.G. Gonzalez-Rodriguez,