PDF

Effect of microstructure on early oxidation of MCrAlY coatings

Ying Chen, Xiaofeng Zhao

2018enmcralyoxidationmicrostructurecoatings

Abstract

Language:

Two MCrAlY coatings with the same nominal composition but different microstructures are deposited onto Hastelloy® X superalloy substrates by low pressure plasma spraying (LPPS) and high velocity oxygen fuel (HVOF) spraying, respectively. The early oxidation behaviour of the coatings at 1150 °C is studied. For the LPPS coating with relatively coarse grains, the γ and β-phase show different oxidation behaviours: the oxide on the γ phase exhibits a multi-layer structure, consisting of outer (Ni,Co)(Cr,Al)2O4, intermediate (Cr,Al)2O3, and inner α-Al2O3. The oxidation of the β-phase reveals distinct characteristics, indicating the influence of microstructural differences on the oxidation performance of these coatings. This research provides valuable insights into the microstructural effects that govern the early oxidation mechanisms of MCrAlY coatings, which are critical for their application in high-temperature environments.

Download

Cite This Work

@article{e09d250f-af98-4a03-a7fd-b28c6a2962cd,
  title={Effect of microstructure on early oxidation of MCrAlY coatings},
  author={Ying Chen and Xiaofeng Zhao},
  year={2018},
  language={en}
}
TY  - JOUR
TI  - Effect of microstructure on early oxidation of MCrAlY coatings
AU  - Ying Chen
AU  - Xiaofeng Zhao
PY  - 2018
LA  - en
ER  -

Similar Items

Plant auditing: a powerful tool for improving metallurgical plant performance

Deepak Malhotra

This work discusses the essential components of a rigorous auditing process aimed at enhancing metallurgical plant performance. The objective is to id

2015enPDF

THE EFFECT OF COOLING RATE OF SLAG FROM PRIMARY COPPER PRODUCTION IN THE VALORIZATION OF COPPER IN THE FLOTATION PROCESS

Aleksandar Mihajlović, Željko Kamberović, Marija Korać, Milorad Gavrilovski, Nikola Jovanović

Technological procedure of slow cooling slag from primary copper production is applied in the purpose of copper recovery in the level of 98.5% to blis

2015enPDF

Process Simulation and Life Cycle Assessment of Ceramic Pigment Production: A Case Study of Green Cr2O3

Olympios Alifieris, Dimitrios Katsourinis

This study presents a combined process modeling—Life Cycle Assessment (LCA) approach for the evaluation of green Cr2O3 ceramic pigments production. Pi

2021enPDF

Removal of Potassium and Iron in Low Grade Bauxite by a Calcination-Acid Leaching Process

Yijun Cao, Zhuang Li

In order to explore the commercialized applications of the low-grade bauxite in the refractory industry, a calcination integrated with acid leaching m

2018enPDF

Development and Testing of Low-Energy-Intensive Technology of Receiving Sulphate-Resistant and Road Portlandcement

B.T. Taimasov, B.K. Sarsenbayev

The article presents the obtaining results of clinkers of sulfate resistant and road cement during the production tests process. The usage of man-made

2017enPDF

Industrial Application of Large Rotary Kiln for Recovery of Vanadium from Vanadium Slag Added MnVO4 in Calcium Roasting Process

Jin WANG, Shaodong WANG

Calcification roasting has emerged as an effective and environmentally friendly method for extracting vanadium from vanadium slag. This study aims to

2017enPDF