Tribological Behavior of Mg97Zn1Y2 Alloy at Elevated Temperatures of 50-200 °C

An, Jian; Feng, J. H.; Yan, Xudong; Li, R. G.

doi:10.1007/s11665-017-2926-x

Cited by 7 publications

(3 citation statements)

References 26 publications

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“…The WR was the highest at 100°C, but the lowest at 20°C. Apparently, the first stages of the WR curves correspond to the mild wear behavior, judging by the notation of wear behavior of magnesium alloys proposed by Chen and Alpas [24], because the WR increases with load in a low slope, and the WR values are within the similar ranges in mild wear regime for AZ31, AZ51, AZ91, AS31 and Mg97Zn1Y2 alloys [24][25][26][27][28]. Therefore, when wear enters the second stage, it means that Mg-10Gd-1.4Y-0.4Zr alloy enters a severe wear regime.…”

Section: Friction and Wear Behavior At Temperatures Of 20°c100°cmentioning

confidence: 71%

“…Since 2000, exploring the physical nature of M-S wear transition has long been a great concern for studying wear behavior of Mg alloys. An et al [24,[26][27][28] conducted a series of experimental investigations on several types of Mg alloys for clarifying M-S wear transition mechanism, and they finally generalized a criterion for M-S wear transition. They used the critical surface DRX temperature as a basis.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of temperature-induced wear transition of an Mg-10Gd-1.4Y-0.4Zr alloy under non-lubricated sliding conditions

Wang

Sun

Liu

et al. 2020

Mater. Res. Express

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The friction and wear behavior of an Mg-10Gd-1.4Y-0.4Zr alloy were investigated in detail within a temperature range of 20°C-200°C in order to clarify temperature-induced mild-severe (M-S) wear transition mechanism and verify if contact surface dynamic recrystallization (DRX) temperature criterion can be applicable to elevated temperature M-S wear transition. Coefficient of friction (COF) and wear rate (WR) were plotted against applied load at each test temperature, from which M-S wear transition loads were identified. A wear mechanism transition map was created on test temperatureapplied load coordinate system, in which the mild wear region i.e. a safe working region in engineering application was indicated. The M-S wear transition mechanism was proved to be DRX softening by microstructural examination and hardness measurement in subsurfaces. The effects of precipitation and static recrystallization (SRX) occurred at temperatures of 150°C-200°C on M-S wear transition were also assessed. According to surface DRX temperature criterion, the transition loads were calculated at temperatures of 20°C-200°C, and the results identified applicability of the criterion to wear tests at elevated temperatures.

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Section: Friction and Wear Behavior At Temperatures Of 20°c100°cmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Investigation of temperature-induced wear transition of an Mg-10Gd-1.4Y-0.4Zr alloy under non-lubricated sliding conditions

Wang

Sun

Liu

et al. 2020

Mater. Res. Express

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“…By changing its composition of alloying elements, Pai et al 24 improved the high-temperature strength of AZ91D alloy. An et al 25 reported a decreasing trend in COF and an increasing trend in wear rate for the Mg97Zn1Y2 alloy up to a wear temperature of 200 °C due to softening of the subsurface. Zafari et al 26 estimated that the AZ91D alloy's surface temperature would reach ∼500 °C at a wear temperature of 250 °C and a sliding speed of 1 m/s, causing material failure.…”

Section: Introductionmentioning

confidence: 99%

Tribological behaviour of AZ91D/ultra-high-temperature ceramic composites at room and elevated temperatures

Surendran

Gnanavelbabu

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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In this research work, the tribological behaviour of an AZ91D alloy and its composites reinforced with different titanium-based ultra-high-temperature ceramic particulates was investigated. Titanium-based ultra-high-temperature ceramic materials (5 wt%) such as titanium carbide, titanium boride and titanium nitride was used for the fabrication of three different composites, namely ATC, ATB and ATN, respectively. The proposed composites were prepared using a novel ultrasonic treatment-assisted stir-squeeze casting technique. Material characterization was performed using scanning electron microscopy and X-ray diffraction techniques. The porosity and hardness of the composites were determined prior to the wear test. In the pin-on-disc tribometer, the wear test was carried out at room temperature by varying the normal load (12.5–50 N) and the sliding speed (0.25–1 m/s). In addition, at a temperature of up to 200 °C, the tribological behaviour of the composites was assessed. The homogeneous distribution of ultra-high-temperature ceramic particles in the matrix was confirmed by the analysis of the microstructure using scanning electron microscopy images. The X-ray diffraction results showed that the reinforcement materials in the matrix were thermally stable. The hardness of the ATC, ATB and ATN was improved by approximately 31%, 33.8% and 29.6%, respectively. In comparison, at all wear testing conditions, ATB demonstrated superior tribological performance, while the performance of ATN was poor and ATC was moderate. Abrasion, oxidation and delamination were the wear mechanisms at room temperature. At elevated temperatures, oxidation, delamination, thermal softening and plastic deformation wear mechanisms were significant..

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Correlation between test temperature, applied load and wear transition of Mg97Zn1Y2 alloy

Tian

Feng

2021

Journal of Magnesium and Alloys

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Tribological Behavior of Mg97Zn1Y2 Alloy at Elevated Temperatures of 50-200 °C

Cited by 7 publications

References 26 publications

Investigation of temperature-induced wear transition of an Mg-10Gd-1.4Y-0.4Zr alloy under non-lubricated sliding conditions

Investigation of temperature-induced wear transition of an Mg-10Gd-1.4Y-0.4Zr alloy under non-lubricated sliding conditions

Tribological behaviour of AZ91D/ultra-high-temperature ceramic composites at room and elevated temperatures

Correlation between test temperature, applied load and wear transition of Mg97Zn1Y2 alloy

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