Effect of sand blasting and glass matrix composite coating on oxidation resistance of a nickel-based superalloy at 1000 °C

被引：44

作者：

Chen, Minghui ^{[1
]}

Shen, Mingli ^{[1
]}

Zhu, Shenglong ^{[1
]}

Wang, Fuhui ^{[1
]}

Wang, Xiaolan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China

来源：

CORROSION SCIENCE | 2013年 / 73卷

基金：

中国国家自然科学基金;

关键词：

Superalloys; Glass; High temperature corrosion; Interfaces; TITANIUM-PORCELAIN SYSTEM; CERAMIC-TO-METAL; INTERFACIAL REACTION; ALUMINIDE COATINGS; CORROSION BEHAVIOR; K38G SUPERALLOY; SURFACE; KINETICS; MECHANISM; DIFFUSION;

D O I：

10.1016/j.corsci.2013.04.022

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

The oxidation behavior of K38G superalloy, which is mechanically polished or sand blasted and then coated with glass matrix composite coatings, is investigated at 1000 degrees C. Results indicate that sand blasting pre-treatment enhances the resistance to oxidation and spallation of the glass coatings on superalloys by promoting formation of an alumina interlayer. The most important factors favoring formation of this alumina interlayer are discussed in terms of that sand blasting not only changes the microstructure of alloy, it also modifies the alloy composition at surface by affecting the progressing of interfacial reactions between the superalloy substrates and glass coatings. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：331 / 341

页数：11

共 51 条

[1]

Influence of grit blasting pre-treatment on the adhesion strength of plasma sprayed coatings: fractal analysis of roughness [J].