کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8004305 | 1516582 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High temperature deformation behavior and processing map of hot isostatically pressed Ti-47. 5Al-2Cr-2Nb-0. 2W-0. 2B alloy using gas atomization powders
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The hot compressive deformation behavior of hot isostatically pressed Ti-47. 5Al-2Cr-2Nb-0. 2W-0. 2B alloy using gas atomization powders was systematically investigated and the processing map was obtained in the temperature range of 1323â1473 K and strain rate range of 0.001â0.5 sâ1 . The calculated activation energy in the above variational ranges of temperature and strain rate possesses a low activation energy value of approximately 365.6 kJ/mol based on the constitutive relationship models developed with the Arrhenius-type constitutive model respectively considering the strain rate and deformation temperature. The hot working flow behavior during the deformation process was analyzed combined with the microstructural evolution. Meanwhile, the processing maps during the deformation process were established based on the dynamic material model and Prasad instability criterion under different deformation conditions. Finally, the optimal hot processing window of this alloy corresponding to the wide temperature range of 1353â1453 K and the low strain rate of 0.001â0.1 sâ1 was obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Iron and Steel Research, International - Volume 24, Issue 4, April 2017, Pages 435-441
Journal: Journal of Iron and Steel Research, International - Volume 24, Issue 4, April 2017, Pages 435-441
نویسندگان
Ying Bao, Dong-ye Yang, Na Liu, Guo-qing Zhang, Zhou Li, Fu-yang Cao, Jian-fei Sun,