论文标题
散装纳米结构的Alcocrfemnni化学复杂合金由激光杯床融合工艺合成
Bulk nanostructured AlCoCrFeMnNi chemically complex alloy synthesized by laser-powder bed fusion process
论文作者
论文摘要
我们报告使用激光式床融合工艺的散装纳米结构合金的合成。等值藻femni化学复杂的合金形成纳米级调节结构，该结构均匀地分布在质合的条件下。纳米结构由Al＆ni-rich有序（B2）和CR＆FE-FERIDE（A2）BCC阶段组成。这两个阶段与连贯的界面边界形成了相互联系的相结束。原子探针 - 探针学和模差校正的扫描透射电子显微镜分析调制结构的空间分布表明发生了纳米尺度的旋转分解。这些结果引入了具有有希望的几何柔韧性的散装纳米结构合金的直接合成。
We report the synthesis of a bulk nanostructured alloy using the laser-powder bed fusion process. The equiatomic AlCoCrFeMnNi chemically complex alloy forms a nanoscale modulated structure, which is homogeneously distributed in the as-built condition. The nanostructure consisted of Al & Ni-rich ordered (B2) and Cr & Fe-rich disordered (A2) BCC phases. The two phases form an interconnected phase-network with coherent interface boundaries. Atom-probe-tomography and aberration-corrected scanning transmission electron microscopy analysis of the spatial distribution of the modulated structure suggests the occurrence of nano-scale spinodal decomposition. These results introduce a direct synthesis of bulk nanostructured alloys with promising geometric flexibility.
