کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1282695 1497593 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of hydrogen on hot deformation behaviors of TiAl alloys
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Effect of hydrogen on hot deformation behaviors of TiAl alloys
چکیده انگلیسی

The effect of hydrogen on hot deformation behaviors of Ti–47Al alloys was studied using a hot simulator. The optimized deformation temperature for Ti–47Al alloys was 1150 °C. Flow stress and peak stress were reduced with increasing addition of hydrogen. Peak stress can be reduced by about 33.3% with 1% hydrogen addition at 1150 °C and strain rate of 1 × 10−2 s−1. There were less dislocation tangles and more twinning and stacking faults in the hydrogenated alloys compared with the unhydrogenated alloys. The hydrogen-induced decrease of flow stress was attributed to hydrogen-induced dislocation mobility and hydrogen-promoted dynamic recrystallization and twinning.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 24, December 2010, Pages 13322–13328
نویسندگان
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