Microstructure characterization and thermal properties of Al-TiC sintered nano composites

Selvakumar, N.; Sivaraj, M.; Muthuraman, S

doi:10.1016/j.applthermaleng.2016.07.005

Cited by 16 publications

(10 citation statements)

References 31 publications

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“…Among them, mass loss of Al-TiC nanocomposite occurred during the decomposition of nanoparticles and the conversion of enthalpy affects the particle size of TiC. DSC analysis shows the weight gain at 825°C with micron size particle as revealed by Selvakumar and Sivaraj [11]. Moreover, nanosized aluminum powder produces high thermal energy and the thermal behavior of nanoparticles was superior as compared to the micron-sized particles as described by Azhagurajan et al [12].…”

Section: Introductionmentioning

confidence: 93%

Surface structural features and wear analysis of a multilayer Ti6Al4V-B₄C thin film coated AISI 1040 steel

Prince

Selvakumar²,

Arulkirubakaran

et al. 2020

Mater. Res. Express

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The deprived wear resistance of AISI 1040 steel often results in higher wear rates. The best ways to upgrade their wear resistance are to introduce hard particle reinforcement to produce a metal matrix composite which can be used as a coating. In the present study Ti-6Al-4V-4B 4 C metal matrix composite coatings were coated on AISI 1040 steel using the magnetron sputtering process and their dry sliding wear behavior was studied at room temperature. The coating morphology was explored by SEM, XRD, FT-IR, and AFM. The constant coating thicknesses of 80 nm and 115 nm were achieved for 0.5 h and 1 h coating duration, respectively. The effects of introducing B 4 C on the hardness, thermal behavior, wear, and friction characteristics were studied. The nano hardness and elastic modulus were attained by AFM nanoindentation technique which showed a maximum of 21.7 GPa and 218.4 GPa, respectively. It was proven that the adding of B 4 C increases the thermal stability of Ti-6Al-4V-4B 4 C coatings as well as modifies the oxidation mechanism. It is expected that the addition of B 4 C will improve the thermal behavior of thin film coatings for their practical application. Wear tests were executed by ball-on-disc wear tester with E-52100 sphere as the counterface at a sliding velocity of 2 m s −1 with 3 N load. Wear rate and coefficient of friction (CoF) reduced with an increase in load and sliding distances also composite coatings exhibited higher wear resistance within entire loading conditions, hereafter suggesting that it could be a favorable substitute to other hard coatings.

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Section: Introductionmentioning

confidence: 93%

Surface structural features and wear analysis of a multilayer Ti6Al4V-B₄C thin film coated AISI 1040 steel

Prince

Selvakumar²,

Arulkirubakaran

et al. 2020

Mater. Res. Express

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“…The demands for energy saving and low fuel consumption in the structural fields and heat sink applications have inspired the developments of the lightweight Al alloys and corresponding Al matrix composites [ 1 , 2 , 3 , 4 , 5 , 6 ]. The Al matrix composites with ceramic particles reinforcements show more excellent thermal stability, mechanical performance and wear resistance than the Al alloys [ 7 , 8 , 9 , 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Carbon Source on TiC Particles’ Distribution, Tensile, and Abrasive Wear Properties of In Situ TiC/Al-Cu Nanocomposites Prepared in the Al-Ti-C System

et al. 2018

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The in situ TiC/Al-Cu nanocomposites were fabricated in the Al-Ti-C reaction systems with various carbon sources by the combined method of combustion synthesis, hot pressing, and hot extrusion. The carbon sources used in this paper were the pure C black, hybrid carbon source (50 wt.% C black + 50 wt.% CNTs) and pure CNTs. The average sizes of nano-TiC particles range from 67 nm to 239 nm. The TiC/Al-Cu nanocomposites fabricated by the hybrid carbon source showed more homogenously distributed nano-TiC particles, higher tensile strength and hardness, and better abrasive wear resistance than those of the nanocomposites fabricated by pure C black and pure CNTs. As the nano-TiC particles content increased, the tensile strength, hardness, and the abrasive wear resistance of the nanocomposites increased. The 30 vol.% TiC/Al-Cu nanocomposite fabricated by the hybrid carbon source showed the highest yield strength (531 MPa), tensile strength (656 MPa), hardness (331.2 HV), and the best abrasive wear resistance.

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“…On the other hand, the researchers showed that the composites reinforced by nano-sized particles have better properties than those reinforced by micro-sized particles. 11 Recently, the high-temperature mechanical properties and wear resistance of the 7xxx aluminum alloy have been improved by adding nano TiC particles in-situ. For example, Xu et al 13 investigated the effects of in-situ nano TiC particles on the microstructure and tribological properties of a 7075 aluminum alloy.…”

Section: Introductionmentioning

confidence: 99%

Aluminum matrix composites reinforced with nano TiC particles: microstructure and wear behavior

Lu¹,

Zhou²,

Li³

et al. 2018

Mater. Tehnol.

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TiC/7085 aluminum matrix composites (AMCs) were prepared by the in-situ reaction casting technique. The effects of the nano TiC particles on the microstructure were investigated by light microscopy, X-ray diffractometer, SEM and TEM. The in-situ nano TiC particles showed an obvious effect on the grain refinement of the as-cast microstructure of 7085 aluminum alloy matrix, leading to a microstructural transformation from the coarse dendritic grains to the fine equiaxed grains. The wear resistance of the AMC was further characterized using a NANOVEA micro tribometer. It was found that the wear rate of the AMC decreased and the wear resistance was enhanced due to the additions of the nano TiC particles. The wear mechanism of the TiC/7085 composites was mainly composed of abrasive and adhesive wear.

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Microstructure characterization and thermal properties of Al-TiC sintered nano composites

Cited by 16 publications

References 31 publications

Surface structural features and wear analysis of a multilayer Ti6Al4V-B₄C thin film coated AISI 1040 steel

Surface structural features and wear analysis of a multilayer Ti6Al4V-B₄C thin film coated AISI 1040 steel

Effects of Carbon Source on TiC Particles’ Distribution, Tensile, and Abrasive Wear Properties of In Situ TiC/Al-Cu Nanocomposites Prepared in the Al-Ti-C System

Aluminum matrix composites reinforced with nano TiC particles: microstructure and wear behavior

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Microstructure characterization and thermal properties of Al-TiC sintered nano composites

Cited by 16 publications

References 31 publications

Surface structural features and wear analysis of a multilayer Ti6Al4V-B4C thin film coated AISI 1040 steel

Surface structural features and wear analysis of a multilayer Ti6Al4V-B4C thin film coated AISI 1040 steel

Effects of Carbon Source on TiC Particles’ Distribution, Tensile, and Abrasive Wear Properties of In Situ TiC/Al-Cu Nanocomposites Prepared in the Al-Ti-C System

Aluminum matrix composites reinforced with nano TiC particles: microstructure and wear behavior

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Surface structural features and wear analysis of a multilayer Ti6Al4V-B₄C thin film coated AISI 1040 steel

Surface structural features and wear analysis of a multilayer Ti6Al4V-B₄C thin film coated AISI 1040 steel