Mechanisms and models of oxygen-assisted fatigue crack propagation at high temperature: A review

IF 5 2区工程技术 Q1 ENGINEERING, MECHANICAL Theoretical and Applied Fracture Mechanics Pub Date : 2024-12-28 DOI:10.1016/j.tafmec.2024.104841

Yibo Zhang , Hetong Liu , Mingda Han , Weixu Zhang

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引用次数: 0

Abstract

In high-temperature environments, oxygen may accelerates the initiation and propagation of fatigue cracks. It significantly affects the performance of structures and restricts their service life. Therefore, it is necessary to study the mechanisms by which oxygen diffusion and oxidation affect fatigue crack propagation at high temperatures. To date, although various mechanisms and models for the influence of oxygen on crack propagation have been proposed, a comprehensive review of the subject is still not available. This paper aims to provide an overview of the topic to help readers understand the field. At first, the paper discusses the influencing factors and mechanisms of oxygen-accelerated crack propagation. Secondly, the relevant models are discussed, including mechanism model, the oxygen-assisted fracture model, the crack growth rate model, and the life prediction model. Thirdly, the paper suggests the limitations and the improvement direction of the models.

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来源期刊

Theoretical and Applied Fracture Mechanics 工程技术-工程：机械

CiteScore

8.40

自引率

18.90%

发文量

435

审稿时长

37 days

期刊介绍： Theoretical and Applied Fracture Mechanics'' aims & scopes have been re-designed to cover both the theoretical, applied, and numerical aspects associated with those cracking related phenomena taking place, at a micro-, meso-, and macroscopic level, in materials/components/structures of any kind. The journal aims to cover the cracking/mechanical behaviour of materials/components/structures in those situations involving both time-independent and time-dependent system of external forces/moments (such as, for instance, quasi-static, impulsive, impact, blasting, creep, contact, and fatigue loading). Since, under the above circumstances, the mechanical behaviour of cracked materials/components/structures is also affected by the environmental conditions, the journal would consider also those theoretical/experimental research works investigating the effect of external variables such as, for instance, the effect of corrosive environments as well as of high/low-temperature.