کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1614266 | 1645420 | 2013 | 6 صفحه PDF | دانلود رایگان |

The limited glass forming ability (GFA) and deficient plasticity are two longstanding bottlenecks for the applications of bulk metallic glasses (BMGs) as structural materials. In this article, we report a TiZr-based BMG with nominal composition of Ti36.2Zr30.3Cu8.3Fe4Be21.2 (at.%) which possesses exceptional GFA and remarkable compressive plasticity simultaneously. The alloy ingot in weight of 150 g can be solidified into an amorphous state, indicating an exceptional GFA – the critical size for glass forming of the current BMG is estimated over 50 mm. The plasticity of about 8% was obtained from the as-cast 2-mm-diameter rod with an aspect ratio of 2, concomitant obvious work hardening effect. The present BMG possessing exceptional GFA and remarkable compressive plasticity simultaneously may have a scientific importance on developing BMGs for structural applications.
► A TiZr-based BMG was developed in Ti–Zr–Cu–Fe–Be system for the first time.
► This BMG possesses an exceptional GFA and remarkable plasticity simultaneously.
► The critical size is over 30 mm by copper mold pour casting method.
► The plastic strain is as large as 8% concomitant an obvious work hardening effect.
► The compressive plasticity is the largest among those of BMGs with dC over 20 mm.
Journal: Journal of Alloys and Compounds - Volume 562, 15 June 2013, Pages 205–210