کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155881 | 1666366 | 2018 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanical behavior and microstructure evolution of a quenched and partitioned steel during drop weight impact and punch testing
ترجمه فارسی عنوان
رفتار مکانیکی و تحول ریزساختار یک فولاد خشک شده و پراکنده در اثر افت وزنی و آزمون پانچ
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
فولاد با استحکام بالا، خنک سازی و پارتیشن بندی، مقاومت ضربه، میکروساختار، حفظ آستنیت،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
In this work, a Fe-0.25C-3.0Mn-1.5Si-0.023Al-0.015Cr (wt%) steel was subjected to the quenching and partitioning (Q&P) treatment, and its mechanical behavior and microstructure evolution during drop weight impact testing and quasi-static punch testing were thoroughly analyzed. It is shown that the 1â¯mm thick Q&P steel sheet can withstand 110â¯J impact energy without any (micro) cracking, which is well above the impact resistance of DP 1180 steel. The local true plastic strain can reach 53.4% in biaxial stretching showing excellent formability of the material. The microstructure characterization shows that the volume fraction of retained austenite decreases exponentially with increasing plastic strain under dynamic biaxial stretching. Scanning electron microscopy analysis of cracks formed after drop weight impact testing with 120â¯J energy reveals a ductile fracture surface consisting of elongated dimples formed by MnS inclusions which are surrounded by fine chisel-point type dimples. The potential of Q&P treated steels for application in the automotive industry is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 737, 8 November 2018, Pages 18-26
Journal: Materials Science and Engineering: A - Volume 737, 8 November 2018, Pages 18-26
نویسندگان
Peikang Xia, Ilchat Sabirov, Jon Molina-Aldareguia, Patricia Verleysen, Roumen Petrov,