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首页> 外文期刊>Metals and Materials International >Nickel Aluminides Coating on Aluminum Substrate Using a Reaction Synthesis Process
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Nickel Aluminides Coating on Aluminum Substrate Using a Reaction Synthesis Process

机译：使用反应合成工艺在铝基底上镀镍铝化物

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Nickel aluminide coatings have been deposited onto an aluminum substrate using a reaction synthesis process at a reaction temperature of 928 K. In this research, the microstructural changes of the intermetallic coating layer were investigated according to the reaction time in a hot press. Afterward, sliding wear behaviors of the coating layer were evaluated in comparison with those of the coating layer deposited onto ferrous material at a similar conditions. As a result, the reaction synthesis of nickel aluminide coatings onto an aluminum substrate occurred slowly and incompletely through a diffusion reaction. A coating with a high hardness was formed on the aluminum substrate after a reaction time in excess of 30 minutes. Additionally, the wear properties of the coating were comparable with those of the coating on ferrous materials. Furthermore, a NiAl3 layer was formed at the interface between the coating layer and the aluminum substrate, thereby potentially contributing to the enhancement of the adhesion quality.
机译：已经通过反应合成工艺在928 K的反应温度下将铝化镍涂层沉积在铝基板上。在这项研究中，根据热压中的反应时间研究了金属间涂层的微观结构变化。然后，与在类似条件下沉积在含铁材料上的涂层的滑动磨损行为相比，评估了涂层的滑动磨损行为。结果，通过扩散反应，铝表面上的铝化镍涂层的反应合成缓慢且不完全地发生。在超过30分钟的反应时间之后，在铝基板上形成具有高硬度的涂层。另外，该涂层的磨损性能与铁类材料上的涂层相当。此外，在涂层和铝基板之间的界面处形成NiAl 3层，从而潜在地有助于提高粘合质量。

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