کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1576374 | 1514776 | 2013 | 7 صفحه PDF | دانلود رایگان |
The crystal structures, microstructural evolution and mechanical properties of as-cast and heat-treated/quenched Al0.5CoCrFeCuNi high-entropy alloy are investigated. The as-cast alloy exhibits a structure of (Co, Cr, Fe)-rich FCC1 dendrite and Cu-rich FCC2 interdendrite without the formation of ordered intermetallic compounds. The parameters representing simple solid-solution formation ability in multi-component alloy systems are estimated. The AlNi-rich BCC phase and AlCu-rich nanophases precipitate during annealing up to 800 °C. Age hardening and improved compressive properties are achieved after the alloy is heat-treated/quenched at 600 °C for 24 h. However, age softening and strength drop occur in case of annealing at 1000 °C as the BCC phase and nanoprecipitates are dissolved into the coarsening matrix.
Journal: Materials Science and Engineering: A - Volume 567, 1 April 2013, Pages 14–20