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首页> 外文期刊>International Journal of Advancements in Technology >Improvement of Oxidation Resistance of Inconel 600 Alloy by Pack Cementation Process
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Improvement of Oxidation Resistance of Inconel 600 Alloy by Pack Cementation Process

机译：通过填充胶结工艺提高Inconel 600合金的抗氧化性

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摘要

The aim of this paper is to improve the oxidation resistance of Inconel 600 alloy by diffusion coating. In this study, (Si and Al) and (Al, Si and Y2O3) were simultaneously deposited by cementation process into Inconel 600 alloy at 1120°C for the different times (2,4,6,8)hours. The pack powder mixture consists of 18Al-8Si-2NH4Cl-72Al2O3 (wt.%) for silicon modified aluminide diffusion coating and replaced 1% from Al2O3 by Y2O3 for yttria doped silicon modified aluminide diffusion coating. Cyclic oxidation was carried out at 50 hours at 900°C, 5 hours for each cycle. The resultsshowed that the coatings microstructure consists of two layers: outer layer and inter-diffusion zone. The best oxidation resistance was found for the deposition by yttria-doped silicon modified aluminide diffusion coating from 6-8 hours of coating time. The phases formed after cyclic oxidation for both coated type and uncoated of Inconel 600 alloy are Ni, NiO, NiFe2O4, (Cr,Fe)2O3 , AlNi, CrO3, α-Al2O3, and Y4Al2O9.
机译：本文的目的是通过扩散涂层提高Inconel 600合金的抗氧化性。在这项研究中，（Si和Al）和（Al，Si和Y2O3）在1120°C的不同时间（2、4、6、8）小时通过胶结工艺同时沉积到Inconel 600合金中。填充粉末混合物由用于硅改性铝化物扩散涂层的18Al-8Si-2NH4Cl-72Al2O3（wt。％）组成，并用于掺杂氧化钇的氧化钇掺杂的硅改性铝化物扩散涂层，由Y2O3代替Al2O3中的1％。在900℃下50小时进行循环氧化，每个循环5小时。结果表明，涂​​层的微观结构由两层组成：外层和相互扩散区​​。对于涂覆氧化钇的硅改性铝化物扩散涂层，在涂覆时间6-8小时内发现了最佳的抗氧化性。对于涂覆型和未涂覆的Inconel 600合金，在循环氧化后形成的相分别为Ni，NiO，NiFe2O4，（Cr，Fe）2O3，AlNi，CrO3，α-Al2O3和Y4Al2O9。

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