The sliding wear behavior of TiCp/AZ91 magnesium matrix composites

Xiu, K.; Wang, H. Y.; Sui, Hang; Wang, Y.; Xu, Chao; Wang, J. G.; Jiang, Qi‐Chuan

doi:10.1007/s10853-006-0946-2

Cited by 43 publications

(14 citation statements)

References 19 publications

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“…However, the mechanical properties, such as the hardness of the magnesium alloys, are not sufficient to enhance their applications. Though some processes to fabricate ceramics particle/ magnesium alloys composites have been studied to improve the mechanical properties (Ref [1][2][3][4][5][6][7][8][9][10][11]. Much attention has been paid to increase the mechanical properties of AZ31 magnesium alloy by friction stir processing (FSP), which is a similar process as friction stir welding (FSW) ( .…”

Section: Introductionmentioning

confidence: 99%

Effect of Process Parameters on Microstructure and Micro-hardness of AZ91/Al2O3 Surface Composite Produced by FSP

Faraji

Dastani

Mousavi

2011

J. of Materi Eng and Perform

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In this article, the effects of three different sizes of Al 2 O 3 particles in the friction stir processing on grain size, cluster size, microstructure, and micro-hardness of as-cast magnesium alloy AZ91 were investigated. Moreover, the effects of two types of tool geometries and number of passes on the mentioned parameters were considered. Effect of mentioned parameters on microstructure, grain refinement, and micro-hardness profile in the friction stirred zone of the specimens was compared by as-cast received form and also friction stir processed (FSPed) specimens without particles. Microstructural characterization of the materials revealed reasonably uniform distribution of Al 2 O 3 reinforcement and significant grain refinement. Hardness studies revealed that the incorporation of nano-and micro-size Al 2 O 3 particulates in magnesium matrix led to a simultaneous increase in hardness.

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Section: Introductionmentioning

confidence: 99%

Effect of Process Parameters on Microstructure and Micro-hardness of AZ91/Al2O3 Surface Composite Produced by FSP

Faraji

Dastani

Mousavi

2011

J. of Materi Eng and Perform

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“…However, debris of composite samples was noticed as finer than BM debris. Wear debris morphology of composite samples reveals that the hard B 4 C particles can act as hard barriers that moderate the intensity of plastic deformation and relieve delamination [23]. Figure 12 shows the wear morphology of counter bodies (AISI52100 steel ball) used for conducting the wear tests.…”

Section: Resultsmentioning

confidence: 99%

“…AZ91 Mg alloy possesses excellent castability, suitable mechanical properties, moderate corrosion resistance and commercial availability with reasonable price [21]. Previous studies have explored the sliding wear behavior of AZ91 Mg alloy and its composites [8,[14][15][16][22][23][24][25][26]. From these findings, it can be learned that the abrasion and adhesion were the common wear mechanisms in magnesium alloys during testing at lower sliding velocities and when testing at higher sliding velocities, more oxidation occurs due to increased frictional heating.…”

Section: Introductionmentioning

confidence: 99%

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Sliding wear behavior of AZ91/B₄C surface composites produced by friction stir processing

Patle

Sunil²,

Dumpala

2020

Mater. Res. Express

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In the present study, the surface of AZ91 Mg alloy was modified by incorporating boron carbide (B 4 C) particles using friction stir processing (FSP). Sliding wear behavior of these developed AZ91/B 4 C surface composites was investigated against AISI 52100 steel ball using linear reciprocating tribometer. Hardness tests reveal that the hardness of the fabricated surface composite (∼137.47 HV) is significantly increased compared to the base metal (∼95.5 HV) due to the presence of B 4 C particles.Wear tests were conducted on the samples at two different sliding velocities; 0.06 m s −1 and 0.12 m s −1 . It was observed that at higher sliding velocity of 0.12 m s −1 , AZ91/B 4 C surface composite exhibited lower friction coefficient value in comparison to that of the base metal, whereas it is vice versa at the low sliding velocity of 0.06 m s −1 . However, surface composites exhibited superior wear resistance at both the sliding velocities, in comparison to that of the base metal. Scanning electron microscopy and energy-dispersive spectroscopy analysis of the wear tracks were carried out to understand the wear mechanisms. From the observations, a combination of abrasive, adhesive, and oxidative wear mechanisms were found to be prominent.

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“…It can be seen that the grooves are deeper in the matrix alloy as compared to the composites tested under similar conditions (19.62 N, 2.61 m/s and 3 km) owing to the absence of hard TiC particles. The examination of the wear surface of the AA7075 matrix alloy tested under the above conditions was characterised by smearing and scratches, typical characteristics of sliding wear (Figure 5a) [35].However, the worn surfaces shown in Figures 5b-c reveal that the grooves are much shallower in the composites than those of the matrix alloy owing to the presence of TiC particles [36,37]. Furthermore, it is evident from Figure 5c exhibits a comparatively smooth worn surface and grooves are much finer and more closely spaced in the AA7075/8 wt.% TiC sample owing to the sliding action of a larger number of hard particles and debris.…”

Section: Sem Analysismentioning

confidence: 98%

Optimisation of process parameters for minimum volumetric wear rate on AA7075-TiC metal matrix composite

RamakoteswaraRao¹,

Ramanaiah²,

Rao³

et al. 2022

Int. J. Automot. Mech. Eng.

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Aluminium matrix material reinforced with particulates constitutes a material matrix composite with low wear rate and substantial hardness, owing to which it has marked its path in many engineering applications. The sub-sequential design and selection of new variants of composites can be done to improve its tribological performance. In the present work, the wear behaviour of aluminium metal matrix composites (AA7075 as matrix material and titanium carbide (TiC) particulates as reinforced material) fabricated through stir casting method was studied. The wear rate was investigated on a pin-on-disc machine and analysis of variance was used to identify the effect of control parameters such as sliding velocity, sliding distance and wt.% of reinforcement on the volumetric wear rate at a fixed load of 20 N. The hardness and wear resistance of the composites were found to be strengthened with the TiC particles reinforced into the AA7075 matrix material. Results show that volumetric wear rate decreases with increasing sliding velocity but increases with increasing sliding distance, irrespective of the wt.% of TiC particles added to composites. Confirmation tests were carried out to verify the experimental results and the worn-out surfaces of selected samples were analysed with scanning electron microscopy.

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The sliding wear behavior of TiCp/AZ91 magnesium matrix composites

Cited by 43 publications

References 19 publications

Effect of Process Parameters on Microstructure and Micro-hardness of AZ91/Al2O3 Surface Composite Produced by FSP

Effect of Process Parameters on Microstructure and Micro-hardness of AZ91/Al2O3 Surface Composite Produced by FSP

Sliding wear behavior of AZ91/B₄C surface composites produced by friction stir processing

Optimisation of process parameters for minimum volumetric wear rate on AA7075-TiC metal matrix composite

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The sliding wear behavior of TiCp/AZ91 magnesium matrix composites

Cited by 43 publications

References 19 publications

Effect of Process Parameters on Microstructure and Micro-hardness of AZ91/Al2O3 Surface Composite Produced by FSP

Effect of Process Parameters on Microstructure and Micro-hardness of AZ91/Al2O3 Surface Composite Produced by FSP

Sliding wear behavior of AZ91/B4C surface composites produced by friction stir processing

Optimisation of process parameters for minimum volumetric wear rate on AA7075-TiC metal matrix composite

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Sliding wear behavior of AZ91/B₄C surface composites produced by friction stir processing