Wear Properties Of Aluminum Research Articles

Investigation of Stress and Wear Analysis for Aluminum-based Metal Matrix Composite Reinforced Silicon Carbide using ANSYS Software Package

Introduction: This research paper examines the mechanical and wear properties of aluminium- based cast composites, an exciting category of materials with many different uses. The study aspires to understand more about the effectiveness of these composites under various conditions and weights. Method: This investigation aims to identify the microstructural constituents that influence resistance to wear and mechanical strength. The outcomes will provide fascinating knowledge regarding possible applications of these composites in the field, notably manufacturing, aeroplanes, and shipping, whereby lightweight materials with superior strength and resistance to wear are extensively demanded. Whenever utilized, these reinforcements act like bearing structures that prevent cracks. Aluminium lacks the characteristics needed for a wide range of engineering applications. Results: As a result, it is critical to produce aluminium-based alloys with all of the combinational circuitry properties required to meet our relevant requirements.SEM (scanning electron microscopy) anatomical assessments of aluminium, silicon carbide, and iron. The current inquiry examines the implications of the particle stages on the microhardness, elastic modulus, and mechanical and wear features of aluminium as the base material and silicon carbide as a reinforcement material for composites. The sample’s microhardness and modulus of elasticity improve from 64 to 70 and 688 MPa to 719 MPa, correspondingly, when the weight percentage of silicon carbide (micro %15 and nano%1, 2, 3, 4). Conclusion: The various test results are examined in this investigation and made available for correlation with one another. The mechanical features and resistance to wear of aluminium matrix composites manufactured using several methods have been explored.

Results of Sn/Pb solder affected aluminum under wear study

Nanostructured Al-Sn and Al-Pb alloys are effectively used to improve their wear characteristics. Taking this into consideration, the wear properties of aluminum have been studied while affected by both elements Sn-Pb solder at a lower level to explore its reusing potentials. In this purpose a common pin-on-disk device is used in which different dry, wet and corrosive sliding environments are applied. Additionally, pure Al, Al-Sn and Al-Pb alloys are also considered for recovering the clarification and to separate elemental effects on wear properties. The worn surfaces of the samples are examined using optical and scanning electron microscopy, both before and after wear. Surface roughness also is a measure to assess the wear properties under different environments. The findings revealed that minor solder has a great impact on the wear properties of Al with Sn playing a better role than Pb. Solid solution strengthening is the main reason for improved wear behavior in terms of the low wear rate and coefficient of friction. Both Sn and Pb do not form any intermetallic with Al but with impurities it can easily occur particularly with Sn resulting in better wear properties. This phenomenon is more prominent in corrosive environment than wet due to the protective oxide layer on the surfaces. In dry sliding conditions, numerous large wear particles, oxide debris and grooves can be seen on the worn surface, but smoother wear tracks are seen in wet and corrosive environments as form oxide film and thumbs down somewhat direct contact on the moveable surfaces. SEM analysis also reveals higher abrasive wear and plastic deformation on the worn surface produced under dry sliding conditions where minor added alloys indicating that reinforcing particles effectively influence the properties.

Wear characteristics of aluminium matrix nanocomposites (AMNCs) – A review

Aluminium matrix nanocomposites (AMNCs) have the ability to meet the needs of innovative applications of engineering materials. These materials are on expanding utilization in industries like ground transportation, aeronautical, sports, and foundation due to the enhanced properties, for example, high strength to weight ratio, corrosion, fatigue, and wear resistance. A few applications including dynamic contact stresses require incredible wear and frictional execution for an improved life. In any case, the integration of these nanoparticles can diminish the wear execution of AMNCs under serious conditions. In several laboratory studies carried out so far in the most recent decade, it has been identified that the wear properties of Aluminium (Al) based nanocomposites are much better than micro composites and its alloys. Within this paper, the publication findings from the year 2016 to 2020 are focussed on the nano-sized reinforcements to analyse the wear performance which is affected by extrinsic variables such as loads, sliding speeds, sliding distance along with intrinsic aspects as microstructure and production method of AMNCs. The reviewed literature found that nano-particle reinforcements substantially enhanced the wear of Al and its alloy nanocomposites.

Effect of ECAP on microstructure, mechanical and tribological properties of aluminum and brass alloys: A review

Strengthening of materials with advanced techniques became very necessary to face the great developments taking place in various engineering applications. In recent years, materials with grain refinement, by severe plastic deformation (SPD) using different methods and techniques, have taken great interest. Equal channel angular pressing (ECAP) process is one of the most effective SPD techniques for producing materials with highly decreased grain size and outstanding properties. The present article discusses the effect of ECAP process on the microstructure, mechanical and wear properties of aluminum (Al) and cupper (Cu) alloys, the most common materials used for many industrial applications.

Effect of Graphene on Wear Properties of Aluminum and Alumina Matrix Nanocomposites

Effect of Graphene on Wear Properties of Aluminum and Alumina Matrix Nanocomposites

Influence of ZrB2 hard ceramic reinforcement on mechanical and wear properties of aluminum

In this work, the effect of ZrB2 (0, 5, 10 and 20 vol%) ceramic reinforcement on densification, structure, and properties of mechanically alloyed Al was investigated. The milling of Al-ZrB2 powder compositions resulted in formation of agglomerates with varied size. In particular, the size of agglomerates was reduced considerably with increased addition of ZrB2 to Al. Interestingly, the densification of hot pressed Al increased from 96.06% to 99.22% with ZrB2 addition. The reduction of agglomerates size was attributed to the enhanced densification of Al-ZrB2 composites. Pure Al showed relatively low hardness (0.94 GPa) and it was improved to 1.78 GPa with the addition of 20 vol% ZrB2. The mechanical properties have significantly been improved for Al-ZrB2 composites. Especially Al - 20 vol% ZrB2 possessed a very high yield strength (529 MPa), compressive strength (630 MPa) and compressive strain of 19.25%. Realization of such a good combination of mechanical properties is the highest ever reported for Al composites so far in the literature. The coefficient of friction (COF) of Al-ZrB2 varied narrowly between 0.33 and 0.40 after dry sliding wear against steel disc. The wear rate of Al-ZrB2 composites was within mild wear regime and varied between 98.88 × 10−6 and 34.66 × 10−6 mm3/Nm. Among all the compositions, Al - 20 vol% ZrB2 composite exhibited the lowest wear rate and high wear rate was noted for pure Al. Mild abrasion, tribo-oxidation, third body wear (wear debris) and delamination were the major material removal mechanisms for Al-ZrB2 composites. Overall the hardness, strength and wear resistance of Al - 20 vol% ZrB2 composite was improved by 84.3%, 84.3% and 64.2%, respectively when compared to pure Al.

Wear Properties of Metal Matrix Composite Al-Cu and Al-Cu-TiB<sub>2</sub>

Tensile and wear properties of aluminium (Al) based metal matrix composites (MMCs) was prepared by added titanium diboride (TiB2) with in-situ technique by salt route. The salts used in this research were potassium hexafluorotitanate (K2TiF6) and potassium tetrafluoroborate (KBF4). Nanocomposite samples were prepared by casting technique associated with incorporating 3 and 6 wt.% of TiB2 into matrix of Al-6wt.%Cu. Instron and wear tests machine were used to characterize the tensile and wear Al-Cu alloys properties. Results showed that increase in TiB2 content gave the high properties of tensile and wear behavior. The study indicates that TiB2 particles have giving improvement the wear performance of the Al–6wt.%Cu alloy. For a constant load and sliding speed, the wear rate decreases as a function of amount of TiB2 in the composite. The wear rate decrease with increasing in wt.% TiB2 particles for the all loads applied. However, addition of TiB2 particle to the Al–6 wt%.Cu matrix has show the coefficient value of wear decreases regardless of applied load. Study of the wear surfaces both alloy and composites by optical microscope suggests that the improvement in wear resistance is mainly due to the formation of finer groove or debris by content of TiB2.