کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7153725 1462488 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influences of pre-torsion deformation on microstructure and mechanical properties of pure titanium subjected to subsequent tension deformation
ترجمه فارسی عنوان
تأثیر تغییر شکل پیش چرخشی بر ریزساختار و خواص مکانیکی تیتانیوم خالص تحت تغییر شکل تنش بعدی
کلمات کلیدی
پیچ خوردگی و تنش ترکیبی، شکستگی، ویژگی های مکانیکی، ریز ساختار، پیش تقطیر، تیتانیوم،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی
A series of experimental studies was carried out to investigate the influences of pre-torsion on microstructure evolution, mechanical properties, and fracture appearance of pure titanium subjected to subsequent tension deformation. An introduction of pre-torsion strain can improve the materials' mechanical properties through micro hardness evaluation. That is, the micro hardness of tensile samples with pre-torsion deformation is much higher than that of samples processed by single torsion or tension. It can be seen from the microstructure that pre-torsion deformation can be used to refine grains better and control grains' morphology by combining subsequent tension. The results indicate that the grains are refined most evidently for tensile samples with 2 turn pre-torsion deformation. Moreover, fracture analysis indicates that tensile samples with pre-torsion strain can present good comprehensive performance. In conclusion, pre-torsion deformation plays an important role in improving comprehensive performance and controlling microstructure evolution on pure titanium subjected to later tension deformation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Aeronautics - Volume 31, Issue 4, April 2018, Pages 837-844
نویسندگان
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