کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1578948 | 1001217 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A numerical model based on internal-state-variable method for the microstructure evolution during hot-working process of TA15 titanium alloy
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A numerical model based on internal-state-variable method for the microstructure evolution during hot-working process of TA15 titanium alloy A numerical model based on internal-state-variable method for the microstructure evolution during hot-working process of TA15 titanium alloy](/preview/png/1578948.png)
چکیده انگلیسی
The microstructure and dynamic material properties of Ti-6Al-2Zr-1Mo-1V (TA15) titanium alloy are very sensitive to process parameters, which directly determine the service properties. To explore and understand the deformation behavior and the optimization of the deformation process, a microstructure-evolution model is needed not only to phenomenologically describe the hot deformation process, but also to reflect the interaction between deformation and microstructure evolution and to reveal the deformation mechanism. In this article, we present an experimental investigation of the microstructure-evolution law and the softening mechanism of TA15 deformation in the two-phase region. By using the internal-state-variable method, a set of mechanically based equations that model the evolution of the dislocation density, the recrystallization and the grain size are developed for the TA15 alloy. By integrating the microstructure-evolution model into the DEFORM-3D software package, we predict microstructure evolution during an isothermal, compressive-deformation process, and the model is verified by comparing the experimental results with the calculation. Using the model a simulation and grain-size prediction of the TA15 large-component isothermal forming are carried out, and the results are confirmed experimentally.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issue 15, 15 June 2010, Pages 3464-3471
Journal: Materials Science and Engineering: A - Volume 527, Issue 15, 15 June 2010, Pages 3464-3471
نویسندگان
Z.C. Sun, H. Yang, G.J. Han, X.G. Fan,