Oxidation behavior of GTD111 Ni-based superalloy at 900 °C in air

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2015-11-01 DOI:10.1016/j.corsci.2015.07.031

J. Brenneman , J. Wei , Z. Sun , L. Liu , G. Zou , Y. Zhou

引用次数: 56

Abstract

The oxidation behavior of GTD111 Ni-based superalloy was investigated at 900 °C from 1 h to 452 h. The detailed oxide structure, from the top surface down to the base material, was clarified by modelling studies as Ni–Ti oxides, Cr–Ti oxides, Cr₂O₃ oxide band, Ni–W–Ta oxide and finally a blocky Al₂O₃ region. Internal oxide Al₂O₃ was discontinuous, Cr₂O₃ oxide dense band provided the most protection against further oxidation. Cracking and spalling of the outer oxides scale results in the nitrogen penetration into the inner oxides scale, and inner nitridation to form TiN occurs. Additionally, the oxidation mechanism was discussed by a model.

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GTD111镍基高温合金在900℃空气中的氧化行为

研究了GTD111镍基高温合金在900℃下1 ~ 452 h的氧化行为。通过模拟研究，从上表面到基材的详细氧化结构被明确为Ni-Ti氧化物、Cr-Ti氧化物、Cr2O3氧化带、Ni-W-Ta氧化物和块状Al2O3区域。内部氧化Al2O3是不连续的，Cr2O3的致密带对进一步氧化提供了最大的保护。外氧化垢开裂剥落，导致氮渗入内氧化垢，发生内氮化生成TiN。此外，通过模型对氧化机理进行了探讨。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.