کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5456318 | 1514659 | 2017 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Micro-mechanical and tribological properties of aluminum-magnesium nanocomposites processed by high-pressure torsion
ترجمه فارسی عنوان
خواص میکرو مکانیکی و تریبولوژیکی نانوکامپوزیت های آلومینیوم و منیزیم که توسط چرخش فشار بالا پردازش می شوند
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کلمات کلیدی
چرخش فشار بالا، نانوکامپوزیت ماتریکس فلزی، نانو انداختن، انلینگ پس از تغییر شکل، تردید
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
High-pressure torsion (HPT) is one of the major severe plastic deformation (SPD) procedures where bulk metals, in the shape of a disk, achieve exceptional grain refinement at ambient temperatures. HPT has been applied for the consolidation of metallic powders and the bonding of machining chips whereas there are very limited reports examining the application of HPT for the production of new metal systems and the formation of nanocomposites. Accordingly, this investigation was initiated to evaluate the potential for the formation of a metal matrix nanocomposite (MMNC) by processing two commercial metal disks of an Al-1050 alloy and a ZK60 magnesium alloy through HPT under 6.0Â GPa for 20 turns at room temperature. Evolutions in microstructure, mechanical properties including hardness and plasticity and the tribological properties were examined in the MMNC region of the processed Al-Mg system. The significance of post-deformation annealing (PDA) at 573Â K for 1Â h was investigated by the change in microstructure and the enhancement in mechanical properties and wear resistance of the HPT-processed MMNC. This study demonstrates the promising feasibility of using HPT to fabricate a wide range of hybrid MMNCs from simple metals and for applying PDA for further improvement of the essential mechanical and tribological properties in the synthesized alloy systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 684, 27 January 2017, Pages 318-327
Journal: Materials Science and Engineering: A - Volume 684, 27 January 2017, Pages 318-327
نویسندگان
Jae-Kyung Han, Han-Joo Lee, Jae-il Jang, Megumi Kawasaki, Terence G. Langdon,