کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7963241 | 1514143 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
dK/da effects on the SCC growth rates of nickel base alloys in high-temperature water
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: dK/da effects on the SCC growth rates of nickel base alloys in high-temperature water dK/da effects on the SCC growth rates of nickel base alloys in high-temperature water](/preview/png/7963241.png)
چکیده انگلیسی
The effect of dK/da on crack growth behavior of nickel base alloys has been studied by conducting stress corrosion cracking tests under positive and negative dK/da loading conditions on Alloys 690, 600 and X-750 in high temperature water. Results indicate that positive dK/da accelerates the SCC growth rates, and the accelerating effect increases with dK/da and the initial CGR. The FRI model was found to underestimate the dK/da effect by â¼100X, especially for strain hardening materials, and this underscores the need for improved insight and models for crack tip strain rate. The effect of crack tip strain rate and dK/dt in particular can explain the dK/da accelerating effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 503, May 2018, Pages 13-21
Journal: Journal of Nuclear Materials - Volume 503, May 2018, Pages 13-21
نویسندگان
Kai Chen, Jiamei Wang, Donghai Du, Peter L. Andresen, Lefu Zhang,