材料科学
高温合金
金属间化合物
尼亚尔
烧结
微观结构
冶金
合金
扩散
扩散焊
相(物质)
复合数
扩散焊
箔法
复合材料
热力学
物理
化学
有机化学
焊接
作者
Hanwei Ning,Dongjun Wang,Shaohua Qin,Jie Zhao,Wenqing Wei,Ze Liu,Gang Liu
标识
DOI:10.1002/adem.202301254
摘要
Herein, a novel method is proposed to prepare the multimaterial composite component for aerospace applications using the current sintering. Two representative high‐temperature structural materials, the new potential intermetallic NiAl and the widely used Ni‐based superalloy K4202, have been employed to achieve the target. As shown by the results, a clean interface with almost no defects is successfully obtained in NiAl/K4202 alloy. Nevertheless, the existence of a continuous Cr(Mo) phase along the region leads to an insufficient bonding ability. To optimize the interfacial microstructure, a Ni foil is employed as the interlayer. The results indicate that the interlayer can hinder the intense diffusion of elements and prevent the abnormal growth of Cr(Mo) phases, which result in a considerable improvement of interfacial properties.
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