Solid-state reaction behavior of Al–Ti–C powder mixture compacts

Jiang, Qi‐Chuan; Wang, H.Y.; Zhao, Yi; Li, X.L.

doi:10.1016/j.materresbull.2004.11.002

Cited by 18 publications

(7 citation statements)

References 13 publications

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“…However, since the TiC particles mechanically mixed into molten aluminium are not in thermodynamic equilibrium, there is a potential risk of interface reactions which yield undesirable products at processing temperatures and lead to a substantial degradation in properties [21]. Many of the problems encountered in solidification processing of particulate-reinforced aluminium composites are overcome by an alternative approach which relies upon the in situ formation of TiC particles in aluminium melts [5,6,[21][22][23][24][25][26][27][28]. Since TiC particles so generated are thermodynamically stable, the matrix-particle interfaces tend to be clean, free from adsorbed gases, oxide films and detrimental reaction products and are thus much stronger.…”

Section: Introductionmentioning

confidence: 99%

In situ synthesis of Al–TiCp composites by reacting K2TiF6 and particulate graphite in molten aluminium

Birol

2008

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

In situ synthesis of Al–TiCp composites by reacting K2TiF6 and particulate graphite in molten aluminium

Birol

2008

Journal of Alloys and Compounds

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“…Metal matrix composites (MMCs) play a major role in the industrial world for the past three decades because of their prominent physical and mechanical properties. They are considered as the desired material for the applications in the automobile and aerospace industries (Jiang et al , 2005). In reality, MMC has a combination of parental matrix mechanical properties, namely, less weight, high ductility and toughness, and properties of reinforcements, such as high hardness and stiffness (Kaczmar et al , 2000).…”

Section: Introductionmentioning

confidence: 99%

A study on tribological behaviour and analysis of ZnO reinforced AA6061 matrix composites fabricated by stir casting route

Ramanathan

Bhuvaneswari

et al. 2021

ILT

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Purpose The most promising replacements for the industrial applications are particle reinforced metal matrix composites because of their good and combined mechanical properties. Currently, the need of matrix materials for industrial applications is widely satisfied by aluminium alloys. The purpose of this paper is to evaluate the tribological behaviour of the zinc oxide (ZnO) particles reinforced AA6061 composites prepared by stir casting route. Design/methodology/approach In this study, AA6061 aluminium alloy matrix reinforced with varying weight percentages (3%, 4.5% and 6%) of ZnO particles, including monolithic AA6061 alloy samples, is cast by the most economical fabrication method, called stir casting. The prepared sample was subjected to X-ray photoelectron spectroscopy (XPS) analysis, experimental density measurement by Archimedian principle and theoretical density by rule of mixture and hardness test to investigate mechanical property. The dry sliding wear behaviour of the composites was investigated using pin-on-disc tribometer with various applied loads of 15 and 20 N, with constant sliding velocity and distance. The wear rate, coefficient of friction (COF) and worn surfaces of the composite specimens and their effects were also investigated in this work. Findings XPS results confirm the homogeneous distribution of ZnO microparticles in the Al matrix. The Vickers hardness result reveals that higher ZnO reinforced (6%) sample have 34.4% higher values of HV than the monolithic aluminium sample. The sliding wear tests similarly show that increasing the weight percentage of ZnO particles leads to a reduced wear rate and COF of 30.01% and 26.32% lower than unreinforced alloy for 15 N and 36.35% and 25% for 20 N applied load. From the worn surface morphological studies, it was evidently noticed that ZnO particles dispersed throughout the matrix and it had strong bonding between the reinforcement and the matrix, which significantly reduced the plastic deformation of the surfaces. Originality/value The uniqueness of this work is to use the reinforcement of ZnO particles with AA6061 matrix and preparing by stir casting route and to study and analyse the physical, hardness and tribological behaviour of the composite materials.

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“…For Al-based MMNCs, TiC is an ideal reinforced particle because it possesses high melting point, high hardness and chemical stability, especially for its low lattice mismatch with Al matrix [22,23]. Moreover, we have successfully fabricated the TiC/Al nanocomposites from Al, Ti and carbon nanotubes (CNTs) system [24].…”

Section: Introductionmentioning

confidence: 99%

Microstructure evolution and mechanical properties of friction stir processed TiC/7085Al nanocomposites

Zhou

Wang

Lü

et al. 2020

Mater. Res. Express

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In this paper, homogeneously dispersed TiC nanoparticles and fine-grained composite was successfully achieved by friction stir processing (FSP) of in situ 0.5 wt.% TiC/7085Al nanocomposites with different rotational speed. The effects of the rotational speed on the microstructures and tensile properties were investigated. Experimental results showed that the stir zone (SZ) exhibited equiaxed recrystallized grains with fine size and a high fraction of high-angle grain boundaries (HAGBs) caused by dynamic recrystallization (DRX). Moreover, the tensile strength and elongation of the friction stir processed (FSPed) composite were significantly improved compared with the base composite. With the rotational speed of 1000 rpm, the composite has the smallest grain size and the optimum mechanical properties. The average grain size decreased to 1.61 μm, the yield strength (YS), ultimate tensile strength (UTS) and elongation reached to 345 MPa, 429 MPa and 17.8%, respectively.

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Solid-state reaction behavior of Al–Ti–C powder mixture compacts

Cited by 18 publications

References 13 publications

In situ synthesis of Al–TiCp composites by reacting K2TiF6 and particulate graphite in molten aluminium

In situ synthesis of Al–TiCp composites by reacting K2TiF6 and particulate graphite in molten aluminium

A study on tribological behaviour and analysis of ZnO reinforced AA6061 matrix composites fabricated by stir casting route

Microstructure evolution and mechanical properties of friction stir processed TiC/7085Al nanocomposites

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