Effects of T4 and T6 Heat Treatments on the Wear Behaviour of WC-Reinforced Mg Alloy Matrix Composite

Karuppusamy, P.; Lingadurai, K.; Sivananth, V.

doi:10.1007/s12666-020-01860-9

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…It was found that the wear resistance of the AZ91-1.0%Pr alloy under the T6 condition was much better compared with that under the as-cast and T4-treated conditions, which was mainly due to large amounts of fine precipitates in the grains and grain boundaries [21]. The wear resistance of the alloy T6-treated AZ91/3.0WC increased by about 63% due to the presence of Mg17Al12 precipitates [22]. However, T6 treatment on as-cast Mg-10Gd-3Y-0.4Zr increased the wear rate because the eutectic compound, which could resist wear, almost disappeared after the T6 treatment [23].…”

Section: Introductionmentioning

confidence: 97%

“…The effects of RE elements on the friction and wear properties of Mg alloys have not been fully studied, and most reports show that the addition of RE elements is beneficial to wear resistance due to the refined structure and the formation of a stable second phase [18][19][20]. In addition, heat treatment has an important effect on the tribological properties of Mg alloys [21][22][23]. It was found that the wear resistance of the AZ91-1.0%Pr alloy under the T6 condition was much better compared with that under the as-cast and T4-treated conditions, which was mainly due to large amounts of fine precipitates in the grains and grain boundaries [21].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Gd/Nd Ratio and Aging Treatment on Wear Behavior of Mg-Nd-Gd-Sr-Zn-Zr Alloys

Wang,

Jia

2023

Coatings

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The Mg-(4-x)Nd-xGd-0.3Sr-0.2Zn-0.4Zr (x = 0, 1, 2, and 3 wt%, Gd/Nd = 0, 1/3, 1, and 3) alloys were hot extruded and then aged (T5). The friction and wear properties of the as-extruded and as-aged alloys were studied using a ball-on-disk wear testing machine and a scanning electron microscope to reveal the impacts of the Gd/Nd ratio and aging treatment. The results show that the friction coefficient of the as-extruded alloys increases first and then decreases with increasing Gd/Nd ratio. After aging, the friction coefficient of the alloys decreases slightly. The Gd/Nd ratio has no significant effect on the wear rate of the as-extruded alloys, and the wear rate decreases first and then increases with the increase in the Gd/Nd ratio for the as-aged alloys. The T5 alloy with a Gd/Nd ratio of 1/3 has the best wear resistance. The wear mechanisms of alloys mainly include abrasive wear, oxidation wear, and delamination wear.

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Section: Introductionmentioning

confidence: 97%