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研究了由前过渡族金属和后过渡族金属按照等原子比替代的(Ti0.33Zr0.33Hf0.33)50(Ni0.33Cu0.33Ag0.33)40Al10多组元合金在机械研磨作用下的非晶化转变,并与由熔体急冷制备的同一成分玻璃态合金进行了对比.两种途径获得的玻璃态相似.在机械研磨的稳态产物中,仍残留有少量尺寸小于30 nm的晶体相颗粒,即非晶化转变未能完全实现.机械研磨形成的非晶相表现有明确的玻璃转变和约80 K宽的过冷液态温度区间,晶化过程分两步进行,第一步晶化转变完成后,剩余的非晶相亦具有玻璃态行为,呈现另一玻璃转变及约100 K宽的过冷液态温度区间.
The effects of mechanical grinding on the mechanical properties of (Ti0.33Zr0.33Hf0.33) 50 (Ni0.33Cu0.33Ag0.33) 40Al10 multi-component alloys, which are replaced by the same atomic ratio, And compared with the glassy alloy of the same composition prepared by melt quenching.The glassy state obtained by the two ways is similar.While a small amount of crystalline phase particles with size less than 30 nm still remain in the mechanically ground products , That is, amorphous transformation can not be fully realized.The mechanical grinding of the amorphous phase showed a clear glass transition and about 80 K wide supercooled liquidus temperature range, the crystallization process is divided into two steps, the first crystallization transition is complete The remaining amorphous phase also has a glassy behavior, exhibiting another glass transition and a supercooled liquid temperature range of about 100 K wide.