کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1575407 | 1514744 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Creep behavior and microstructural evolution of deformed Al-Cu-Mg-Ag heat resistant alloy
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Creep behavior and microstructural evolution of deformed Al-Cu-Mg-Ag heat resistant alloy Creep behavior and microstructural evolution of deformed Al-Cu-Mg-Ag heat resistant alloy](/preview/png/1575407.png)
چکیده انگلیسی
The creep behavior of Al-Cu-Mg-Ag alloy and its microstructural evolution during creep deformation were studied at 100-210 °C with the external stress of 150-300 MPa. The results show that both Ω and θ׳ precipitate secondarily in the under-aged sample during the creeping process, resulting in the excellent creep-resistant property compared to the peak aged sample. The temperatures between 100 and 150 °C have little affect on the creep curves of the alloy. The larger external stress led to the growth of the creep holes on the grain boundaries and the higher creep temperature led to the growth of the precipitations in the grains inner. They both result in the lower creep resistance of Al-Cu-Mg-Ag alloy. The steady creep rate increased with increasing creep temperature or external stress, which can be described by a constitutive equation with the creep deformation activation energy 102.00 kJ/mol.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 599, 2 April 2014, Pages 160-165
Journal: Materials Science and Engineering: A - Volume 599, 2 April 2014, Pages 160-165
نویسندگان
Xiao Yan Liu, Qing Lin Pan, Xi Liang Zhang, Shun Xing Liang, Fei Gao, Li Yun Zheng, Mei Xia Li,