Effect of salt bath temperature on microstructure and fretting wear of nitrided 2.25Cr–1Mo steel in liquid sodium

Chen, Xudong; Feng, Songlin; Wang, Liwen; Zhang, Fan; Shi, Zhiyuan; Ming, Shi-lin; Li, Yan; Liu, Biao; Cai, Zhen-bing

doi:10.1016/j.apsusc.2022.154988

Cited by 9 publications

(2 citation statements)

References 44 publications

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“…Peng et al (2023) indicated that the degree of fretting wear initially decreased and then increased with an increase in the pre-corrosion time. Chen et al (2022) found that salt bath temperature and time significantly affected the surface structure and hardness of 2.25Cr-Mo nuclear alloy steel, thereby influencing its fretting wear mechanism and degree (Yu et al , 2021). The surface states of nuclear steam generator tubes are diverse and complex, and several detrimental factors or behaviors can either initiate or passively influence their surface states.…”

Section: Introductionmentioning

confidence: 99%

Effects of salt spray duration on the fretting corrosion behavior of the Inconel 690 alloy tubes

Yin,

Zhang,

Huang

2024

ACMM

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Purpose The purpose of this paper is to study the effect of surface salt spray duration on the fretting wear and electrochemical corrosion behaviors of Inconel 690 alloy. Design/methodology/approach A high-temperature steam generator was applied to salt spray test samples, a fretting wear rig was used to realize the damage behavior tests, an electrochemical workstation was applied to analysis the changes of each sample’s corrosion dynamic response before and after fretting wear. Findings The thickness of the oxide film that formed on sample surface was increased with the salt spray duration, and somewhat it could act as lubrication during the fretting wear process; however, the corrosive chloride would accelerate the fretting mechanical damage behavior. Originality/value In a salt steam spray condition, the fretting tribo-corrosion behaviors of Inconel 690 alloy surface was studied.

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Section: Introductionmentioning

confidence: 99%

Effects of salt spray duration on the fretting corrosion behavior of the Inconel 690 alloy tubes

Yin,

Zhang,

Huang

2024

ACMM

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“…In many industrial applications, the nitriding processes have proven their effectiveness in improving component performance [16][17][18][19][20][21]. Nevertheless, while nitrided steels demonstrate excellent performance in air environments, there are relatively few studies regarding their behavior and performance evaluation in sodium at high temperatures [22][23][24][25][26]. Therefore, it is essential to investigate the aging characteristics of nitrided W18Cr4V steel in hightemperature-sodium environments to ensure the reliable operation of guide rail friction pairs.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Aging Behavior of Nitrided W18Cr4V Steel in High-Temperature Sodium

Fu,

Liang,

Zhang

et al. 2024

Metals

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The loading and unloading elevators are the primary equipment in the refueling system, used for transferring fuel assemblies in the sodium-cooled fast reactors. The guideway friction pairs are the critical components of these elevators in the refueling system. With the excellent hardness and wear resistance in air, nitrided W18Cr4V steel is a promising material for the guideway friction pairs. In order to assess the feasibility of using nitrided W18Cr4V steel, it is essential to understand the aging behavior of nitrided W18Cr4V steel in high-temperature sodium. Aging tests were conducted on nitrided W18Cr4V steel in sodium and in argon environments at various temperatures for different exposure times. The results showed that the nitrogen atoms in the nitrided layer exhibited bidirectional diffusion behavior in the sodium or argon environment at 540 °C. Compared to the argon environment, cracks formed within the nitrided layer and the diffusion of nitrogen into the sodium was accelerated in the nitrided layer. As a significant number of nitrogen atoms had diffused into the sodium, there was little difference in the hardness between nitrided W18Cr4V steel and non-nitrided W18Cr4V steel after long-term exposure to 540 °C sodium.

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Comprehensive Overview of Nano, Micro, and Macro Tribometers in Practice

Muralidharan,

Vignesh,

Vignesh

et al. 2024

J Bio Tribo Corros

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Effect of salt bath temperature on microstructure and fretting wear of nitrided 2.25Cr–1Mo steel in liquid sodium

Cited by 9 publications

References 44 publications

Effects of salt spray duration on the fretting corrosion behavior of the Inconel 690 alloy tubes

Effects of salt spray duration on the fretting corrosion behavior of the Inconel 690 alloy tubes

A Study on the Aging Behavior of Nitrided W18Cr4V Steel in High-Temperature Sodium

Comprehensive Overview of Nano, Micro, and Macro Tribometers in Practice

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