The B2 structure based MIL composites was fabricated by a two-step processing: the stacked Al and Fe foils were firstly hot pressed under eutectic reaction to form the Al-rich intermetallic phase(Fe₂Al₅) layer by consuming all the Al foils. And then, for forming the Fe-rich intermetallic phase (FeAl with B2 structure), three kinds of experiments were carried out to transfer the Al-rich phase layer to B2 structure: annealing at eutectic temperature for a long time; hot pressing or Spark plasma sintering (SPS) at higher temperature (1000 °C). The EDS, EBSD, XRD, micro-hardness tests and quasi-static compression are applied to study microstructure evolution, phase transformation and identification during fabricating the B2 structure based MIL composites. Mechanical properties of the B2 structure based MIL composites has proved the reduction of the stress concentration on the interface.

基于 B2 结构的 MIL 复合材料通过两步加工制造：首先在共晶反应下对堆叠的铝箔和铁箔进行热压以形成富铝金属间相（Fe ₂ Al ₅) 层通过消耗所有的铝箔。然后，为了形成富Fe金属间相（FeAl B2结构），进行了三种实验使富Al相层转变为B2结构：在共晶温度下长时间退火；在较高温度 (1000 °C) 下进行热压或放电等离子烧结 (SPS)。应用EDS、EBSD、XRD、显微硬度测试和准静态压缩来研究基于B2结构的MIL复合材料制造过程中的微观结构演变、相变和识别。基于 B2 结构的 MIL 复合材料的机械性能证明了界面上应力集中的减少。