期刊
SURFACE & COATINGS TECHNOLOGY
卷 206, 期 11-12, 页码 2851-2858出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2011.12.010
关键词
Silicon carbide; Anti-oxidation; Cold spray
Brittle SiC coatings have been successfully applied on Ni-Cr-based superalloy substrates to improve their oxidation resistance at high temperatures. The coating has been formed through the plastic deformation of the substrate with particle segmentation. The overlaid SiC layer shows the ability to slow down the outward chromium diffusion and hence sustaining the elemental content of the substrate. The formation of MoSi2 and SiO2 layers beneath SiC layer plays an important role in the oxidation rate reduction at elevated temperature environment. Scratch adhesion test result shows an excellent adhesion of SiC coating, as the coating delamination did not happen up to a 3.7 N load. Four-point bending tests also pointed out the strong adhesion of oxide scales, which is necessary for further oxidation prevention. (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据