Effect of Surface Mechanical Attrition Treatment on Tribological Behavior of the AZ31 Alloy

Xia, Shuangwu; Liu, Yong; Fu, Dong-ming; Jin, Bin; J, Lu

doi:10.1016/j.jmst.2016.05.018

Cited by 47 publications

(19 citation statements)

References 40 publications

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“…This last technique, consists by mean of a vibrating sole in propelling balls that hit the sample surface with different incident angles. With the goal of improving the mechanical properties of the surface, the later treatments have been applied on Cu [12], Mg [13,14], Al alloys [15],steels [16][17][18][19][20] and Ti [21,22] to introduce a deformation gradient at the top surface.…”

Section: Introductionmentioning

confidence: 99%

“…The deformation behavior of commercially pure titanium after SMAT has been described by Zhu et al [21]. Tribological properties of nanostructured alloys obtained by severe plastic deformation have been tested on steels [17], Ti [22,23], Al and Al 2 O 3 composites [24] as well as Mg [13,14]. However, no general trends could be worked out to explain the wear resistance reported for alloys treated by SMAT [13,14,17].…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, some results were apparently contradicting for both steels and Mg alloys. For example, though the SMAT and friction conditions were highly similar, some authors noted a reduction in wear loss for the AZ31 Mg alloy [13] whereas for the Mg-6Gd-3Y-0.5Zr authors observed an increase in wear loss [14]. On steels, Sun [17] has explained some incoherences by taking into account the high severity of unlubricated contact and the hardening already sustained by the samples treated by SMAT.…”

Section: Introductionmentioning

confidence: 99%

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Oxide dependent wear mechanisms of titanium against a steel counterface: Influence of SMAT nanostructured surface

Maurel

Weiss

Bocher

et al. 2019

Wear

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The analysis of the tribological behavior of a steel ball on pure titanium has been carried out under alternative motion on both, a coarse grained Ti surface and its nanostructured derivative obtained by surface mechanical attrition treatment (SMAT). Along the duration of the tribology test, variations in friction behavior were interpreted as a three stages sequence of different wear mechanisms that were controlled by the successive formation of Ti-rich and Fe-rich oxides. Surface nanostructures appeared to change the oxide formation kinetics and delay the formation of a protective Fe-rich third body oxide layer on Ti. The results indicate that apparently contradicting literature results can be explained by taking into account the contamination induced during the SMAT process.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Oxide dependent wear mechanisms of titanium against a steel counterface: Influence of SMAT nanostructured surface

Maurel

Weiss

Bocher

et al. 2019

Wear

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“…Many researchers have found that SPD can effectively produce nanostructure layers on the surfaces of Mg alloys and improve the wear resistance of Mg alloys. Xia et al [ 21 ] studied the wear behavior of AZ31 Mg alloy with a nanostructure layer generated by SMAT. The friction coefficient of the SMAT-treated sample was lower than that of the as-received sample under dry sliding conditions.…”

Section: Introductionmentioning

confidence: 99%

Effects of Ultrasonic Surface Rolling Processing and Subsequent Recovery Treatment on the Wear Resistance of AZ91D Mg Alloy

et al. 2020

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AZ91D Mg alloy was treated by ultrasonic surface rolling processing (USRP) and subsequent recovery treatment at different temperatures. The dry sliding friction test was performed to investigate the effects of USRP and subsequent recovery treatment on the wear resistance of AZ91D Mg alloy by a ball-on-plate tribometer. The microstructure, properties of plastic deformation layer and worn morphology were observed by optical microscope (OM), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) analysis and microhardness tester. Results illustrate that the grains of AZ91D Mg alloy surface layer are refined to nanocrystallines. The maximum microhardness of the top surface of the USRP sample reaches 102.3 HV. When USRP samples are treated by recovery treatment at 150 °C, 200 °C and 250 °C, the microhardness of the top surface decreases to 90.68 HV, 79.29 HV and 75.06 HV, respectively. The friction coefficient (FC) and wear volume loss of the USRP-R-150 sample are the lowest among all the samples. The worn surface morphology of the USRP-R-150 sample is smoother than that of other samples, indicating that the wear resistance of AZ91D Mg alloy treated by USRP and recovery treatment at 150 °C is improved significantly.

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“…The tribological properties of nanostructured alloys [7,8] and also of materials with microstructure gradients produced by severe surface plastic deformation [9][10][11][12] have already been investigated. For nanostructured titanium, some authors reported an impressive decrease in the coefficient of friction at the beginning of the tribology test [9].…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of oxide dependent tribological behavior in Ti / Steel sliding and influence of nanostructured surfaces

et al. 2020

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The tribological behavior of pure titanium having coarse-grained or nanostructured surfaces has been investigated against a steel ball moved with an alternative motion. The nanostructures were obtained by Surface Mechanical Attrition Treatment (SMAT) both at room and at cryogenic temperatures. An unexpected wear behavior was revealed: the hard steel ball was abraded for all cases even if it was several times harder compared to the Ti surface. This was due to the formation of a third body consisting of hard Ti oxides. Interestingly, important variations of the coefficient of friction were also revealed during the rubbing process. These variations could be separated into three successive stages, each with its specific wear mechanisms. The wear regimes were related to changes in the third body layer formed between the Ti and steel surfaces. SMAT changed the formation kinetics of the third body. The temperature at which the SMAT was conducted also introduced different third body formation kinetics. Important variations in the wear resistance were consequently observed between each surface condition.

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Effect of Surface Mechanical Attrition Treatment on Tribological Behavior of the AZ31 Alloy

Cited by 47 publications

References 40 publications

Oxide dependent wear mechanisms of titanium against a steel counterface: Influence of SMAT nanostructured surface

Oxide dependent wear mechanisms of titanium against a steel counterface: Influence of SMAT nanostructured surface

Effects of Ultrasonic Surface Rolling Processing and Subsequent Recovery Treatment on the Wear Resistance of AZ91D Mg Alloy

Mechanisms of oxide dependent tribological behavior in Ti / Steel sliding and influence of nanostructured surfaces

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