Microstructure morphology and aging characteristics of 9% Cr martensitic heat-resistant steel after service

Zhang Kun; Cai Wenhe; Wang Zhichun; Xin Chen; Fengyuan Shu; Shi Yang; Jianwei Wang; Li Weili; Zhang Xin

doi:10.2478/msp-2024-0044

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Microstructure morphology and aging characteristics of 9% Cr martensitic heat-resistant steel after service

Materials Science-Poland

Volume 42 (2024): Issue 4 (December 2024)

By: Zhang Kun, Cai Wenhe, Wang Zhichun, Xin Chen, Fengyuan Shu, Shi Yang, Jianwei Wang, Li Weili and Zhang Xin

Open Access

|Dec 2024

Abstract

Herein, based on the strengthening mechanism and aging mechanism of 9% Cr steel, changes in the microstructure and mechanical properties during long-term high-temperature service are analyzed. The limitations of current microstructure observation in the aging rating process and the defects of the aging evaluation system are expounded. It is proposed that the aging evaluation of 9% Cr martensitic heat-resistant steel can distinguish between the abnormal microstructure and the aging phenomenon occurring during long-term operation, and the combination of higher resolution microscopy observation such as laser confocal scanning microscopy with mechanical property tests could provide a comprehensive judgement.

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Articles in this issue

DOI: https://doi.org/10.2478/msp-2024-0044 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331

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Language: English

Page range: 50 - 65

Submitted on: Apr 2, 2024

Accepted on: Oct 26, 2024

Published on: Dec 24, 2024

Published by: Wroclaw University of Science and Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

9% Cr martensitic heat-resistant steel,

Aging characteristics,

Microstructure,

Evaluation method

Related subjects:

Materials sciences,

Materials sciences, other,

Nanomaterials,

Functional and smart materials,

Materials characterization and properties

© 2024 Zhang Kun, Cai Wenhe, Wang Zhichun, Xin Chen, Fengyuan Shu, Shi Yang, Jianwei Wang, Li Weili, Zhang Xin, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 42 (2024): Issue 4 (December 2024)