Age-hardening behavior of powder metallurgy AA2014 alloy

Durmuş, Hülya; Merıç, Cevdet

doi:10.1016/j.matdes.2005.11.022

Cited by 30 publications

(9 citation statements)

References 11 publications

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“…The sintered Al4Cu-SiC composite samples subjected to heat treatment were solution treated at 495 and 530°C for 6 h, water quenched and then aged at 180°C for various aging periodic times: 4, 12 and 24 h. The main purpose of solution treatment is to dissolve the precipitates and obtain a homogeneous solution, and then preserve the solid solution by rapidly cooling to a lower temperature. The heat treatment parameters recommended for the peak hardening (T6 treatment) for alloys of similar compositions mentioned elsewhere ( Ref 3,8,10,11) consist of solution treatment in the temperature ranging from 495 to 530°C and aging treatment at 180°C. The selected conditions of solution treatment represent two extreme temperatures and thus expected different degrees of dissolution of solute in the matrix.…”

Section: Methodsmentioning

confidence: 99%

Effect of Heat Treatment on Microstructure of Al4Cu-SiC Composites Consolidated by Powder Metallurgy Technique

Wasik

Leszczyńska-Madej

Madej

et al. 2020

J. of Materi Eng and Perform

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Silicon carbide particles-reinforced Al4Cu composites containing 2.5, 5 and 7.5 wt.% of reinforcement were fabricated using powder metallurgy (PM) technique. The sintered Al4Cu-SiC composites were solution treated for 6 h at two different temperatures (495 and 530°C) and then aged at 180°C for various aging periods (4, 12 and 24 h). Effects of heat treatment on the microstructural changes and microhardness were investigated by scanning electron microscope, transmission electron microscope, x-ray diffraction and microhardness tests. The results indicate the ceramic particles-reinforced Al4Cu matrix requires different heat treatment parameters compared to the unreinforced alloy. The applied solution temperature did not allow for thorough dissolution of alloy phases in the matrix material produced by PM route. However, in Al4Cu-SiC composites the main strengthening phase (Al 2 Cu) was uniformly distributed in the matrix. The solid-solution temperature increase affects the reduction in time to reach peak hardness. The highest increment in microhardness by aging treatment was observed for composite with the addition of 5 wt.% of SiC solution treated at 530°C for 12 h (110 HV0.05).

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Section: Methodsmentioning

confidence: 99%

Effect of Heat Treatment on Microstructure of Al4Cu-SiC Composites Consolidated by Powder Metallurgy Technique

Wasik

Leszczyńska-Madej

Madej

et al. 2020

J. of Materi Eng and Perform

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“…Aluminium alloy is now currently using in the development of composite material. Aluminium based composite materials are using in various industrial application [5,6]. Usually, composite is the combination of two or more than two materials.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Behaviour of Al/SiC/Agro-Waste RHA Hybrid Metal Matrix Composite

Dwivedi¹,

Srivastava²,

Maurya³

et al. 2020

RCMA

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In the present investigation, an attempt was made to utilize RHA in the development of aluminium based composite material. AA6061 alloy was melted in muffle furnace. Preheated RHA and SiC were added in the aluminium alloy. Composite material was fabricated by stir casting technique. Microstructure image showed proper wettability of reinforcement material with aluminium alloy matrix. Uniform distribution was observed of reinforcement particles in aluminium alloy. It has been observed that by using the RHA and SiC simultaneously in aluminium alloy, mechanical properties were improved significantly. However; toughness and ductility were reduced. Heat treatment of composite material was also carried out to observe the enhancement of mechanical property. Results showed that after the heat treatment process, mechanical properties were further improved.

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“…To study hardness property, Dwivedi et al [4] produced metal matrix composites (MMCs) by using AA2014 and eggshells waste particulates as reinforcement material. Similarly, Durmus et al [5] used agehardening on AA2014, whereas Aksoz and Bostan [6] studied the effect of aging and cryo-aging treatment on microstructure and hardness of AA2014-SiC MMCs. Similarly for improving wear behavior, Canakci et al [7] used an artificial neural network to predict wear behavior of AA2014/B 4 C p MMCs, whereas Nagaral et al [8] investigated wear behavior of AA2014-ZrO 2 nano-composite by using a two-stage stir casting process.…”

Section: Introductionmentioning

confidence: 99%

Micro-hardness and wear behavior of AA2014/Al2O3 surface composite produced by friction stir processing

2020

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The present study aimed to improve the micro-hardness and wear properties of AA2014 aluminum alloy. Surface composite of AA2014 was produced using Al 2 O 3 as reinforcement by friction stir processing (FSP) technique. FSP was performed by using a constant traverse speed of 40 mm/min and two rotating speeds of 1000 and 1400 rpm. After FSP, the average grain size of AA2014 was reduced from 21.9 µm in base material to 9.2 µm in FSP with a rotating speed of 1000 rpm and 3.8 µm in FSP with rotating speed of 1400 rpm. Optical microscopy showed that the Al 2 O 3 reinforcement particles were distributed homogeneously in AA2014 after FSP. The micro-hardness test showed that the hardness property in AA2014/Al 2 O 3 surface composite was improved after FSP and was increased with an increase in rotating speed. The micro-hardness was improved by 30% after FSP. The wear test revealed that both the wear performance and coefficient of friction (COF) were improved after FSP. The COF was improved from 0.27461 in base material to 0.22570 in FSPed samples. Surface roughness test showed that the sample with more micro-hardness showed better surface roughness as compared to the other samples.

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Age-hardening behavior of powder metallurgy AA2014 alloy

Cited by 30 publications

References 11 publications

Effect of Heat Treatment on Microstructure of Al4Cu-SiC Composites Consolidated by Powder Metallurgy Technique

Effect of Heat Treatment on Microstructure of Al4Cu-SiC Composites Consolidated by Powder Metallurgy Technique

Microstructure and Mechanical Behaviour of Al/SiC/Agro-Waste RHA Hybrid Metal Matrix Composite

Micro-hardness and wear behavior of AA2014/Al2O3 surface composite produced by friction stir processing

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