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Published in:
Effects of Internal Oxidation Methods on Microstructures and Properties of Al2O3 Dispersion-Strengthened Copper Alloys Read chapter Read first chapter

2018 | OriginalPaper | Chapter

Oxidation and Hot Corrosion Behavior of Inconel 740H Alloy at High Temperature

Authors : Kunjie Luo, Chengtao Li, Fei Xue, Yan Liu, Lu Zhang, Guodong Zhang

Published in: High Performance Structural Materials

Publisher: Springer Singapore

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Abstract

The high temperature oxidation and high temperature sulfuration behavior of Inconel 740H alloy were studied by field emission scanning electron microscope (FESEM) and other equipments. The results show that the surface film formed by high temperature sulfuration of 740H alloy was looser and easier to fall off compared to surface film formed by high temperature oxidation. The oxide film obtained by high temperature oxidation contained two layers. The outer one was mainly composed of Cr2O3 and Ti2O3 phase, while the inner one was mainly composed of Al2O3 phase. The surface film obtained by high temperature sulfuration contained three layers. The outer one was mainly composed of Cr2O3 and Ti2O3 phase, the inner one was mainly composed of S and Cr compounds, and the middle one was mainly composed of inner oxide Al2O3. The depth of internal sulfuration zone increases as sulfuration temperature rises.

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Metadata
Title
Oxidation and Hot Corrosion Behavior of Inconel 740H Alloy at High Temperature
Authors
Kunjie Luo
Chengtao Li
Fei Xue
Yan Liu
Lu Zhang
Guodong Zhang
Copyright Year
2018
Publisher
Springer Singapore
Book
High Performance Structural Materials

Print ISBN: 978-981-13-0103-2

Electronic ISBN: 978-981-13-0104-9

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-981-13-0104-9_59

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