کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5455159 | 1514637 | 2017 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructures and mechanical properties of Ti and Mo micro-alloyed medium Mn steel
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Microstructures and tensile properties of a Ti and Mo micro-alloyed ultrafine-grained medium Mn TWIP-TRIP steel were investigated. The steel exhibits a superior combination of strength and ductility, i.e. 46800Â MPaâ%, achieved by a high phase fraction of room temperature austenite with enhanced stability. Grain refinement is obtained from the formation of nano-sized (Ti, Mo)C precipitates by optimization of the intercritical annealing time and temperature after cold rolling. The intercritical annealing temperature dependence of the deformation mechanisms is investigated in detail. The localized deformation, pronounced when the TRIP effect is dominant, is related to the correlated strain-induced martensitic transformation of austenite islands.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 706, 26 October 2017, Pages 1-14
Journal: Materials Science and Engineering: A - Volume 706, 26 October 2017, Pages 1-14
نویسندگان
Dongyeol Lee, Jin-Kyung Kim, Seawoong Lee, Kyooyoung Lee, Bruno C. De Cooman,