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A new multi-component alloy with a nanostructured morphology and superior mechanical behavior

机译:具有纳米结构形态和优异机械性能的新型多组分合金

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摘要

Here, we develop a Al13Fe36Co24Ni24C3 nanostructured alloy prepared via the arc-melting method. The newly-developed NS alloy consists of face-centered-cubic (FCC) and ordered-FCC (L-12) dual-phase NS region and a small amount (similar to 2.5 vol%) of the ordered body-centered-cubic phase (B2). Significantly, the alloy exhibits outstanding harmony of the compressive yield strength (similar to 1.5 GPa) and strain (similar to 63%). The deformation substructure is mainly characterized by pronounced planar slip in the NS region. And the dynamic slip band refinement in the NS region coordinate with screw dislocations slip in the B2 grain enable the material shows excellent mechanical properties.
机译:在这里,我们开发了一种通过电弧熔化法制备的Al13Fe36Co24Ni24C3纳米结构合金。新开发的NS合金由面心立方(FCC)和有序FCC(L-12)双相NS区域和少量(约2.5%(体积))的有序体心立方相组成(B2)。显着地,该合金表现出出色的压缩屈服强度(约1.5 GPa)和应变(约63%)的协调性。变形子结构的主要特征是在NS区出现明显的平面滑移。并且,NS区域中的动态滑带细化与B2晶粒中的螺旋位错滑移相协调,使该材料具有出色的机械性能。

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