کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7975733 | 1514689 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of preexisting plastic deformation on the creep behavior of TP347 austenitic steel
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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 preexisting plastic deformation on the creep behavior of TP347 austenitic steel Effect of preexisting plastic deformation on the creep behavior of TP347 austenitic steel](/preview/png/7975733.png)
چکیده انگلیسی
We investigated the effect of preexisting plastic deformation with the strain of 30% on the creep behavior of TP347 austenitic steel at 650 °C with different applied stresses. The results showed that the creep rupture life of the prestrained sample increased more than that of the unstrained sample tested at 300, 250 and 200 MPa due to the strengthening of the mechanical twins induced by preexisting plastic deformation. Conversely, the prestrained samples were ruptured earlier than that of the unstrained sample tested when the lower creep stresses (150 and 125 MPa) were applied. The shorter creep rupture life of the prestrained sample was due to the reduced amount of time to a minimum creep rate and the shorter tertiary-stage creep time which can be related to the accelerated precipitation of sigma phase at the grain boundaries in the strained sample.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 654, 27 January 2016, Pages 390-399
Journal: Materials Science and Engineering: A - Volume 654, 27 January 2016, Pages 390-399
نویسندگان
Sung-Min Hong, Dong-Joon Min, Yong-keun Chung, Ju-Heon Kim, Dong-Ik Kim, Jin-Yoo Suh, Jae-Hyeok Shim, Woo-Sang Jung, In-Suk Choi,