Dry Sliding Behavior of a TiZr-Based Alloy under Air and Vacuum Conditions

Liu, Yang; Zhong, Hua; Guo-liang, LV; Yue, Yunlong; Guo, Bo; Z., M.; Liu, R. P.

doi:10.1007/s11665-019-04100-4

Cited by 13 publications

(3 citation statements)

References 30 publications

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“…These changes, in turn, impact the friction and wear properties of the material during its operational service, thereby imposing serious constraints on spacecraft lifespan. Consequently, a comprehensive investigation into the friction properties of the TC4 alloy under extreme conditions becomes imperative to ensure its reliability and durability in aerospace mission (Asl et al , 2023; Ghahramanzadeh Asl, 2020; Yang et al , 2019). In a study conducted by Yazdanian et al (2007) thermal oxidation treatment of the TC4 alloy at 873 K for 60 h was carried out, accompanied by testing the sliding wear properties of the alloy in a vacuum.…”

Section: Introductionmentioning

confidence: 99%

Multi-scale wear mechanism of material surface and hinge interface based on TC4 alloy in space environment

Wang,

Huang,

et al. 2024

ILT

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Purpose The purpose of this paper is to clarify the influence of low earth orbit space environment on the wear mechanism of TC4 alloy material and crank rocker mechanism. Design/methodology/approach In this study, friction experiments were carried out on TC4 alloy friction discs and crank rocker mechanisms, both before and after exposure to atomic oxygen and proton irradiation. Nanoindentation, grazing incidence X-ray diffraction (GIXRD), and X-ray photoelectron spectroscopy were employed to systematically characterize alterations in mechanical properties, surface phase, and chemical composition. Findings The results show that the wear mechanism of TC4 alloy friction disc is mainly adhesive wear in vacuum environment, while the wear mechanism of crank rocker mechanism includes not only adhesive wear but also abrasive wear. Atomic oxygen exposure leads to the formation of more oxides on the surface of TC4 alloy, which form abrasive particles during the friction process. Proton irradiation will lead to a decrease in fatigue performance and an increase in hardness on the surface of TC4 alloy, thus causing fatigue wear on the surface of TC4 alloy, and more furrows appear on the crank rocker mechanism after proton irradiation. In the three environments, the characteristics of abrasive wear of the crank rocker mechanism are more obvious than those of the TC4 alloy friction disc. Originality/value These results highlight the importance of understanding the subtle effects of atomic oxygen and proton irradiation on the wear behavior of TC4 alloy and provide some insights for optimizing its performance in space applications. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2024-0051/

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Section: Introductionmentioning

confidence: 99%

Multi-scale wear mechanism of material surface and hinge interface based on TC4 alloy in space environment

Wang,

Huang,

et al. 2024

ILT

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“…[7][8][9][10] Materials currently used in the manufacture of components for aircraft and the transportation industry must have the ability to resist wear not only in normal atmospheric conditions but also under varying environmental conditions. [11][12][13] Details on the tribological behavior of Mg-based composites under different environmental conditions are insufficient in the literature and need to be investigated thoroughly.…”

Section: Introductionmentioning

confidence: 99%

Effects of inert gas environment on the sliding wear behavior of AZ91/B₄C surface composites

Patle

Sunil²,

Kumar

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Tribological characteristics of AZ91/B4C surface composites were studied under air and argon gas environments. Tests were conducted under a constant normal load of 10 N, with a sliding velocity of 0.06 m/s using a linear reciprocating tribometer. Wear tracks and debris were analyzed using scanning electron microscopy, three-dimensional contour topography, and energy-dispersive X-ray spectroscopy in order to understand the wear mechanisms. The wear rate of the specimen tested under the argon environment was found to be lower (∼60%) in comparison with that of the specimen tested under the open-air environment. The value of the friction coefficient was found to be minimum under the argon environment compared with the air environment. In the air environment, the major material loss from the test specimen was attributed to oxidation wear; whereas under the argon environment, strain-hardening effect was dominant, and the material was found to be removed by delamination wear. In addition, the worn surface morphology of the wear tracks and counter surfaces showed the involvement of abrasion and adhesion wear mechanisms. The results of the study pave the pathway for the design of lightweight surface composite material systems such as AZ91/B4C toward an efficient and robust tribo-pair applicability for a controlled environment.

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“…Improving the existing technologies and developing new effective ones for processing agricultural raw materials has always been one of the urgent tasks of the food industry [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the cheese components’ influence on the dehydration process under reduced pressure

Ermolaev¹,

Kechkin²,

Makhacheva³

et al. 2020

BIO Web Conf.

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This work is aimed at studying the influence of various components’ content on the process of vacuum dehydration. It was found that with an increase in the proportion of fat in dry matter from 10 to 20 %, the duration of disinfection increases by 4 %. The further grows of the fat proportion from 20 to 50 increases the process duration by 54 %. It was revealed, when cheeses, with the fat proportion equal from 10 to 50 %, a change their fat proportion by 1 %, the duration of dehydration decreases by 4.25 minutes, and the drying rate grows by 0.0065 %/min. It has been discovered that with an increase in the table salt concentration with the same mass fraction of cheese moisture 53–55 %, a decrease in the rate of dehydration is observed as well. In the period with a constant drying rate at a concentration of sodium chloride of 1 %, the drying speed is 0.98 %/min; 2 % – 0.8 %/min; 3 % – 0.72 %/min; 4 % – 0.54 %/min. The amount of water activity in cheeses was investigated. It was established that with an increase in the concentration of table salt from 1 to 4 %, the water activity of cheese before drying changes by 0.131; after drying – by 0.174.

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Dry Sliding Behavior of a TiZr-Based Alloy under Air and Vacuum Conditions

Cited by 13 publications

References 30 publications

Multi-scale wear mechanism of material surface and hinge interface based on TC4 alloy in space environment

Multi-scale wear mechanism of material surface and hinge interface based on TC4 alloy in space environment

Effects of inert gas environment on the sliding wear behavior of AZ91/B₄C surface composites

Analysis of the cheese components’ influence on the dehydration process under reduced pressure

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Dry Sliding Behavior of a TiZr-Based Alloy under Air and Vacuum Conditions

Cited by 13 publications

References 30 publications

Multi-scale wear mechanism of material surface and hinge interface based on TC4 alloy in space environment

Multi-scale wear mechanism of material surface and hinge interface based on TC4 alloy in space environment

Effects of inert gas environment on the sliding wear behavior of AZ91/B4C surface composites

Analysis of the cheese components’ influence on the dehydration process under reduced pressure

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Effects of inert gas environment on the sliding wear behavior of AZ91/B₄C surface composites