Influence of TiO2 particles on recrystallization kinetics of Al–2Mg–TiO2 composites

Chaudhury, S. K.; Panigrahi, S.C.

doi:10.1016/j.jmatprotec.2006.09.014

Cited by 13 publications

(4 citation statements)

References 20 publications

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“…Chaudhury et al studied the effect of processing parameters on physical properties of spray formed and stir cast Al-2Mg-TiO 2 composites [9]. The effect of TiO 2 (rutile) particles on recrystallization kinetics of Al-2Mg-TiO 2 composites prepared using modified spray forming and conventional stir casting techniques has been studied by Chaudhury et al and cast composites were cold rolled to increase density [10]. Zhu et al fabricated Al-TiO 2 -C powder mixtures using exothermic dispersion method.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Hot Extruded Al-TiO<sub>2</sub> Powder Metallurgic Composites

Ravichandran¹,

Meignanamoorthy

Dineshkumar³

2016

AMM

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Aluminium metal matrix composites reinforced with TiO2 were synthesized using powder metallurgy route. The compositions such as Al-2.5%TiO2, Al-5%TiO2, Al-7.5%TiO2 and Al-10%TiO2 were milled using ball mill for 1 hour. The green compacts were prepared using 400 kN hydraulic press. The sintering was done by using electric muffle furnace at a temperature of 550°C for 1 hour. Hot extrusion was carried out for the sintered composite samples with suitable punch and die. The mechanical properties such as ultimate tensile strength, yield strength, percentage elongation and hardness have been studied for the hot extruded samples. The microstructures of the extruded composites were analyzed using optical microscope and reported. The high compressive strength was obtained for the Al-5%TiO2 composite.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Hot Extruded Al-TiO<sub>2</sub> Powder Metallurgic Composites

Ravichandran¹,

Meignanamoorthy

Dineshkumar³

2016

AMM

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“…The orthogonal experimental design helps to isolate the effect of each variable on the grey relational grade at various levels. For instance, the Ws at three different levels were calculated by taking the mean of GRG for the trials [1, 4, 7, [2, 5, 8], and [3,6,9]. The impact of other parameters at different levels was computed and listed in table 5.…”

Section: Grey Relational Coefficient (Grc) and Grey Relational Grade ...mentioning

confidence: 99%

“…Nowadays, minerals have emerged as potential reinforcement materials as they are amply available, inexpensive, and environment-friendly materials. Rutile is one of the inexpensive, amply available minerals, mainly consists of Titanium dioxide (TiO 2 ), and was successfully used as reinforcement in the fabrication of PAMCs [5,6]. Rutile exhibits superior mechanical properties both at the room as well as elevated temperatures, has very good wear and corrosion resistance [7].…”

Section: Introductionmentioning

confidence: 99%

Experimental assessment of FSW process to join AA6061/Rutile composite and parametric optimization using TGRA

et al. 2021

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Present study is focused on investigating the effect of various friction stir welding (FSW) process variables on AA6061/Rutile composites welding quality. FSW of composites was performed considering tool geometry (Tg), welding speed (Ws) and rotational speed (Ns) as ideal parameters for multi-response optimization. Experiments were designed based on the L9 orthogonal array. Analysis of variance (ANOVA) was utilized to evaluate the effects of these welding process variables on output responses namely hardness and ultimate tensile strength (UTS). Main effects plots were drawn to found out the optimal levels of these process parameters. Multi-response optimization of the welding process has been performed using Taguchi's grey relational analysis (TGRA). Analysis revealed that welding speed of 90 mm min −1 , a tool with a square pin, and rotational speed of 1000 rpm produced an FSW joint with excellent mechanical properties. Microstructure analysis revealed that refinement in the grain structure and redistribution of reinforced particles helped in improved joint strength.

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“…Material manufactured by powder metallurgy, however, shows reduced mechanical properties because of residual porosity 16, 17 and therefore has a slightly different softening kinetics during hot forming. The addition of hard/brittle particles to the metal matrix has a significant effect on the microstructure development during forming, and this in turn affects recrystallization behaviour 18–20. Recrystallization kinetics is highly dependent on the size of the brittle particles and their distribution.…”

Section: Introductionmentioning

confidence: 99%

Dynamic and Static Softening of Sintered MgO‐PSZ / TRIP‐matrix Composites with up to 10 vol.‐% ZrO₂

Yanina

Guk

Müller

et al. 2011

steel research int.

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A metal matrix composite (MMC) consisting of AISI 304 austenitic stainless steel with up to 10 vol.‐% MgO‐PSZ was produced by a powder metallurgic process through sintering at 1300 °C and 1390 °C. The hot working of sintered samples was conducted between 900 °C and 1100 °C. The behaviour of softening kinetics was investigated using flow curve recording methods (dynamic softening) and the double‐hit method (static softening). The influence of the deformation parameters such as temperature, strain rate, inter‐pass time and relative density of the samples was determined. The microstructure development of the sintered composite after hot forming was determined by optical microscopy and SEM and was interpreted with the help of qualitative microstructure analysis. The results show a general acceleration of softening processes with increasing temperature and strain rate, with the addition of ZrO2 particles and a decrease in the density of composite materials. A mathematical‐physical model was developed to predict the softening behaviour and optimize the forming processes of the composite in the light of these results.

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Influence of TiO2 particles on recrystallization kinetics of Al–2Mg–TiO2 composites

Cited by 13 publications

References 20 publications

Microstructure and Properties of Hot Extruded Al-TiO<sub>2</sub> Powder Metallurgic Composites

Microstructure and Properties of Hot Extruded Al-TiO<sub>2</sub> Powder Metallurgic Composites

Experimental assessment of FSW process to join AA6061/Rutile composite and parametric optimization using TGRA

Dynamic and Static Softening of Sintered MgO‐PSZ / TRIP‐matrix Composites with up to 10 vol.‐% ZrO₂

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Influence of TiO2 particles on recrystallization kinetics of Al–2Mg–TiO2 composites

Cited by 13 publications

References 20 publications

Microstructure and Properties of Hot Extruded Al-TiO<sub>2</sub> Powder Metallurgic Composites

Microstructure and Properties of Hot Extruded Al-TiO<sub>2</sub> Powder Metallurgic Composites

Experimental assessment of FSW process to join AA6061/Rutile composite and parametric optimization using TGRA

Dynamic and Static Softening of Sintered MgO‐PSZ / TRIP‐matrix Composites with up to 10 vol.‐% ZrO2

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Product

Resources

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Dynamic and Static Softening of Sintered MgO‐PSZ / TRIP‐matrix Composites with up to 10 vol.‐% ZrO₂