کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1579437 | 1514831 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strain softening behavior in a particle-containing copper alloy
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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: Strain softening behavior in a particle-containing copper alloy Strain softening behavior in a particle-containing copper alloy](/preview/png/1579437.png)
چکیده انگلیسی
The strain softening behavior of a particle-containing copper alloy and the associated microstructure changes were investigated as a function of strain rate ÎµË and analyzed by modeling. It is shown that, increasing strain rate ÎµË favors the multiple peak type behavior for flow stress and the appearance of strain softening behavior. During the ambient compression, the fiber structure, dislocation density and dislocation cell size and shape were also changed significantly with increasing of strain rate εË. The transition from strengthening to softening was explained in terms of generation and annihilation of dislocations within dislocation cells or at cell boundaries. A new constitutive equation was developed to well describe the strain softening in the particle-containing alloy compressed at different strain rates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issues 10â11, 25 April 2010, Pages 2478-2485
Journal: Materials Science and Engineering: A - Volume 527, Issues 10â11, 25 April 2010, Pages 2478-2485
نویسندگان
Mingxing Guo, Kun Shen, Mingpu Wang,