کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7210329 | 1469206 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fields-Backofen and a Modified Johnson-Cook Model for CP-Ti at Ambient and Intermediate Temperature
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک مواد
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fields-Backofen and a Modified Johnson-Cook Model for CP-Ti at Ambient and Intermediate Temperature Fields-Backofen and a Modified Johnson-Cook Model for CP-Ti at Ambient and Intermediate Temperature](/preview/png/7210329.png)
چکیده انگلیسی
The flow stress behavior of commercial pure titanium (CP-Ti) was studied by uniaxial tension tests at temperatures ranging from 283 to 573 K and strain rates from 0.000 05â¼0.005 sâ1. The tensile properties of CP-Ti was investigated to determine the quantitative variation of the strain rate sensitivity and the strain hardening with temperature. The results show that the strain rate sensitivity of CP-Ti at 283â¼423 K is not obvious and strain hardening index increases with temperature at 353â¼573 K. A mathematical model using an updated Fields-Backofen (FB) equation based on temperature changing was established to describe the plastic flow stress behavior of CP-Ti. Meanwhile by considering the coupled effects of strain, strain rate and temperature, a modified Johnson-Cook (JC) model were proposed to predict the flow behavior. Compared with the original JC model, the modified JC model shows better agreement with the experimental stress, which validates the accuracy of the modified model describing the plastic flow stress of CP-Ti.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metal Materials and Engineering - Volume 46, Issue 7, July 2017, Pages 1803-1809
Journal: Rare Metal Materials and Engineering - Volume 46, Issue 7, July 2017, Pages 1803-1809
نویسندگان
Chang Le, Zhou Changyu, Peng Jian, Li Jian, He Xiaohua,