کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8017812 1517227 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An AlNbTiVZr0.5 high-entropy alloy combining high specific strength and good ductility
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
An AlNbTiVZr0.5 high-entropy alloy combining high specific strength and good ductility
چکیده انگلیسی
The crystal structure, microstructure, density and compression properties of a novel AlNbTiVZr0.5 high entropy alloy are reported. After homogenization the alloy is composed of bcc matrix phase containing Laves and Zr2Al-type second phase particles. The alloy has low density of 5.64 g cm−3. The yield strength of the alloy gradually decreases from 1430 MPa at room temperature to 680 MPa at 800 °C and drops to 75 MPa at 1000 °C. The alloy can be compressed to 50% height reduction without fracture at temperatures from room to 1000 °C. Surface cracking is observed only at room temperature. The specific yield strength and ductility of the AlNbTiVZr0.5 alloy is compared with properties of other high entropy alloys intended for high-temperature usage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 161, 15 December 2015, Pages 136-139
نویسندگان
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