Enhancing compressive response of Mg-6Al alloy using Al2O3 nanoparticles

Mardi, K. Bimla; Mallick, Ashis; Dixit, Amit Rai; Gupta, Manoj

doi:10.4149/km_2018_3_183

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…The obtained results (Figure 5) indicate that the observed "dendrites-to-grains" microstructural modification (Figures 3 and 4) plays a crucial role in improving the nanoindentation characteristics of the studied materials. This observation is in good agreement with similar findings of other studies about magnesium and aluminum alloys with incorporated nanoparticles [32][33][34][35]. Such laser-induced hardening behavior is expected to also enhance the tribological properties of the materials studied in the present work.…”

Section: Nanoindentation Measurementssupporting

confidence: 93%

The Influence of Laser Surface Remelting on the Tribological Behavior of the ECAP-Processed AZ61 Mg Alloy and AZ61–Al2O3 Metal Matrix Composite

et al. 2020

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This paper deals with the tribological study of the laser remelted surfaces of the ECAP-processed AZ61 magnesium alloy and AZ61–Al2O3 metal matrix composite with 10 wt.% addition of Al2O3 nanoparticles. The study included the experimental optimization of the laser surface remelting conditions for the investigated materials by employing a 400 W continual wave fiber laser source. Tribological tests were performed in a conventional “ball-on-disc” configuration with a ceramic ZrO2 ball under a 5 N normal load and a sliding speed of 100 mm/s. The results showed that both the incorporation of Al2O3 nanoparticles and the applied laser treatments led to recognizable improvements in the tribological properties of the studied AZ61–Al2O3 composites in comparison with the reference AZ61 alloy. Thus, the best improvement has been obtained for the laser modified AZ61–10 wt.% Al2O3 nanocomposite showing about a 48% decrease in the specific wear rate compared to the laser untreated AZ61 base material.

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Section: Nanoindentation Measurementssupporting

confidence: 93%

The Influence of Laser Surface Remelting on the Tribological Behavior of the ECAP-Processed AZ61 Mg Alloy and AZ61–Al2O3 Metal Matrix Composite

et al. 2020

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“…Magnesium metal matrix nanocomposites (Mg-MMNCs) demonstrate excellent mechanical properties that can be used for various applications, so it is essential to develop appropriate machining techniques, especially at the micro-scale, to promote their industrial application such as in the biomedical, automotive, chemical and aerospace industries [ 39 , 40 ]. However, machining is one of the major challenges in Mg-based metal matrix composites.…”

Section: Introductionmentioning

confidence: 99%

Surface Topography Analysis of Mg-Based Composites with Different Nanoparticle Contents Disintegrated Using Abrasive Water Jet

et al. 2021

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This study investigated the effect of abrasive water jet kinematic parameters, such as jet traverse speed and water pressure, on the surface of magnesium-based metal matrix nanocomposites (Mg-MMNCs) reinforced with 50 nm (average particle size) Al2O3 particles at concentrations of 0.66 and 1.11 wt.%. The extent of grooving caused by abrasive particles and irregularities in the abrasive waterjet machined surface with respect to traverse speed (20, 40, 250 and 500 mm/min), abrasive flow rate (200 and 300 g/min) and water pressure (100 and 400 MPa) was investigated using surface topography measurements. The results helped to identify the mode of material disintegration during the process. The nanoindentation results show that material softening was decreased in nanocomposites with higher reinforcement content due to the presence of a sufficient amount of nanoparticles (1.11 wt.%), which protected the surface from damage. The values of selected surface roughness profile parameters—average roughness (Ra), maximum height of peak (Rp) and maximum depth of valleys (Rv)—reveal a comparatively smooth surface finish in composites reinforced with 1.11 wt.% at a traverse speed of 500 mm/min. Moreover, abrasive waterjet machining at high water pressure (400 MPa) produced better surface quality due to sufficient material removal and effective cleaning of debris from the machining zone as compared to a low water pressure (100 MPa), low traverse speed (5 mm/min) and low abrasive mass flow rate (200 g/min).

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Designing lightweight multicomponent magnesium alloys with exceptional strength and high stiffness

Gu¹,

Zhou²,

Qi-wu³

et al. 2022

Materials Science and Engineering: A

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Enhancing compressive response of Mg-6Al alloy using Al2O3 nanoparticles

Cited by 3 publications

References 18 publications

The Influence of Laser Surface Remelting on the Tribological Behavior of the ECAP-Processed AZ61 Mg Alloy and AZ61–Al2O3 Metal Matrix Composite

The Influence of Laser Surface Remelting on the Tribological Behavior of the ECAP-Processed AZ61 Mg Alloy and AZ61–Al2O3 Metal Matrix Composite

Surface Topography Analysis of Mg-Based Composites with Different Nanoparticle Contents Disintegrated Using Abrasive Water Jet

Designing lightweight multicomponent magnesium alloys with exceptional strength and high stiffness

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