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首页> 外文期刊>Journal of Materials Engineering and Performance >In Situ Characterization of NiTi/Ti6Al4V Joints During Reaction-Assisted Diffusion Bonding Using Ni/Ti Multilayers
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In Situ Characterization of NiTi/Ti6Al4V Joints During Reaction-Assisted Diffusion Bonding Using Ni/Ti Multilayers

机译：Ni / Ti多层反应辅助扩散键合过程中NiTi / Ti6Al4V接头的原位表征

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摘要

Reaction-assisted diffusion bonding process of NiTi and Ti6Al4V was studied in situ. For this purpose, experiments were carried out at the High Energy Materials Science beamline (P-07) at PETRA-III (DESY). Ni/Ti multilayer thin films 2.5 μm thick with 12 and 25 nm modulation periods were directly deposited by magnetron sputtering onto the materials being joined. The NiTi and Ti6Al4V coated parts were placed with the films facing each other in a dilatometer equipped with Kapton windows for the x-ray beams. Micro-joining was promoted by applying a 10 MPa pressure and inductively heating the materials, while simultaneously acquiring x-ray diffraction scans across the bond interface. Sound joints were produced at 750℃. The formation of the NiTi_2 phase could not be avoided.
机译：对NiTi和Ti6Al4V的反应辅助扩散键合过程进行了原位研究。为此，在PETRA-III（DESY）的高能材料科学射线线（P-07）上进行了实验。通过磁控管溅射将2.5μm厚的具有12和25 nm调制周期的Ni / Ti多层薄膜直接沉积到待连接的材料上。将NiTi和Ti6Al4V涂层的零件放置在一起，使薄膜彼此相对，放在配备有用于X射线束的Kapton窗口的膨胀计中。通过施加10 MPa的压力并感应加热材料来促进微连接，同时在整个键合界面上获得X射线衍射扫描。在750℃产生了良好的接头。无法避免形成NiTi_2相。

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