Some aspects on plastic deformation of copper and copper–titanium carbide powder metallurgy composite preforms during cold upsetting

Narayanasamy, R.; Anandakrishnan, V.; Pandey, K.S.

doi:10.1007/s12289-008-0383-7

Cited by 9 publications

(6 citation statements)

References 28 publications

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“…Fe-C-Mn composites were synthesized through PM by Selvakumar et al and the higher workability was observed at the initial loading, and furthermore, it tends to be decreased [ 14 ]. Copper composites with 7.5% of titanium carbide in two aspect ratios were synthesized by Narayanasamy et al and found the increased plastic range at the first stage due to the incorporation of TiC [ 15 ]. Hybrid copper composites reinforced with titanium dioxide and graphite were synthesized by Ilayaraja et al and presented the results that the inclusion of reinforcements in matrix enhanced the hardness and strength coefficient of the composites [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Workability Behavior of Cu-X wt.% TiC (x = 0, 4, 8, and 12) Powder Metallurgy Composites

Mohanavel

Ravichandran

Ali

et al. 2022

Bioinorganic Chemistry and Applications

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In this work, copper (Cu) matrix composite reinforced with titanium carbide (TiC) was fabricated by powder metallurgy (PM) method with the varying TiC content from 0% to 12% by weight in the step of 4%. The required weight percentage of powders was milled in an indigenously developed ball milling setup. Green compacts were made using a computer-controlled hydraulic press (400 kN) and sintered in a muffle furnace at a temperature of 950°C. Scanning electron microscope (SEM) was used to analyze the distribution of TiC particles in Cu matrix in as-sintered conditions. X-ray diffraction (XRD) analysis resulted in the existence of respective phases in the produced composites. The structural characteristics such as stress, strain, dislocation density, and grain size of the milled composites were evaluated. Cold upsetting was conducted for the sintered composites at room temperature to evaluate the axial (σz), hoop (σө), hydrostatic (σm), and effective (σeff) true stresses. These stresses were analyzed against true axial strain (εz). Results showed that the increase in the inclusion of weight percentage of TiC into the Cu matrix increases density, hardness, (σz), (σө), (σm), (σeff), and stress ratio parameters such as (σz/σeff), (σθ/σeff), (σm/σeff), and (σz/σθ) of the composites.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Workability Behavior of Cu-X wt.% TiC (x = 0, 4, 8, and 12) Powder Metallurgy Composites

Mohanavel

Ravichandran

Ali

et al. 2022

Bioinorganic Chemistry and Applications

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“…For sintered preforms, the constitutive relationship as per the findings of Narayanasamy et al [29].…”

Section: Constitutive Relationshipmentioning

confidence: 99%

Experimental Investigations of Al-Cr3C2 Composite Preform Densification and Deformation

Borra¹,

Davuluri²

2022

ACSM

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This investigation on strain hardening, densification and workability of the Sintered aluminium- Chromium Carbide composition of (Al-Cr3C2 of 2, 4 and 6%) preforms subjected to upsetting were investigated in this research. Industrial practitioners needed the workability data and densification mechanisms to plan and envisage the failure strains. In the current study, under triaxial stress state conditions Al-Cr3C2 preform with primary preform densities and various aspect ratios were compressed. Strain hardening, densification behaviors of aluminium- Chromium Carbide be investigated by gradually increasing the load till the fracture occurs. The outcome of adding Cr3C2 to Al and the impact of aspect ratio on formability was also extensively investigated. We looked at the parameters of stress ratio, instant varying strain rate, work hardening exponent, instantaneous density coefficient and densification attained.

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“…15 Among them, PM technique is more popular due to its high production yield, cost effectiveness and ability to produce shapes with higher accuracy. 16 Schubert et al 17 developed Cu/ SiC composites through PM route and reported that the bonding strength and thermo-physical properties of the composites drastically improved by a vapor deposition molybdenum coating on SiC powders. Pan et al 18 investigated the mechanical and tribological properties of carbon nanotube (CNT) and Al 2 O 3 nanoparticles reinforced Cu matrix composites fabricated by PM technique.…”

Section: Introductionmentioning

confidence: 99%

Optimization of tribological process parameters of titanium carbide reinforced copper matrix composites

Ravichandran¹,

Alagarsamy²,

Dinakaran³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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Copper (Cu) matrix composites are developed by reinforcing Cu with Titanium Carbide (TiC) powder using the powder metallurgy (PM) method. Pin-on-disc tribo analysis is conducted to evaluate the tribological performance of the developed composites. Moreover, the influence of different parameters such as, concentration (wt.%) of TiC, applied load, sliding velocity and sliding distance on the wear rate and friction coefficient are studied using Taguchi L16 orthogonal array. The main effect plot reveals that the lowest wear rate is obtained at 12 wt.% of TiC, 10 N applied load, 4 m/s sliding velocity and 1750 m sliding distance. Similarly, the lowest friction coefficient is attained at 12 wt.% of TiC, 10 N applied load, 4 m/s sliding velocity and 750 m sliding distance. Analysis of variance (ANOVA) results shows that the wt.% of TiC powder is a more noteworthy parameter for obtaining the lowest wear rate and friction coefficient with a contribution of 94.54% and 94.17%, respectively. A regression model is also developed to predict the friction coefficient and wear rate for the developed composites.

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Some aspects on plastic deformation of copper and copper–titanium carbide powder metallurgy composite preforms during cold upsetting

Cited by 9 publications

References 28 publications

Synthesis and Workability Behavior of Cu-X wt.% TiC (x = 0, 4, 8, and 12) Powder Metallurgy Composites

Synthesis and Workability Behavior of Cu-X wt.% TiC (x = 0, 4, 8, and 12) Powder Metallurgy Composites

Experimental Investigations of Al-Cr3C2 Composite Preform Densification and Deformation

Optimization of tribological process parameters of titanium carbide reinforced copper matrix composites

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