Prediction of the Distortions for a 6061 Aluminium Alloy Plate during Quenching Process by Using Mathematical Modelling

In recent decades, due to the increase in computing power, mathematical modelling has experienced a fulminant development in almost all areas. The aluminium industry is one of these areas. One of the main processes for improving the properties of certain aluminium alloys is the solution heat treatment and quenching process. The most common quenchant used for aluminium alloys is water. The main advantage of using a water quenchant is that water can provide the rapid quenching. By considering the temperature dependence of the thermo-physical properties, the non-linear thermo-mechanical direct coupled analysis of the quenching process for a 6061 aluminium alloy plate was achieved. The structural stress due to solid thermal eﬀects were studied by using ANSYS ﬁnite element software. The quenching rate, which determines the plate deformation after quenching, was estimated and validated on independent equipment for the research of aluminium alloy quenching process. The developed mathematical model serves as a tool by simulation of various scenarios that may occur in the industrial process.

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Prediction of the residual stress after quenching of 6061 aluminium alloy plates by using mathematical modelling

ITM Web of Conferences ◽

10.1051/itmconf/20203402007 ◽

2020 ◽

Vol 34 ◽

pp. 02007

Author(s):

Marin Petre ◽

Cristian Dinu ◽

Nicuşor Constantin Drăghici ◽

Valeriu Andrei

Keyword(s):

Residual Stresses ◽

Mathematical Modelling ◽

Aluminium Alloy ◽

Thermal Effects ◽

Coupled Analysis ◽

Principal Stresses ◽

Alloy Plate ◽

Finite Element Software ◽

Quenching Process ◽

6061 Aluminium Alloy

The purpose of this article is to better understand the behavior of the residual stresses in aluminium alloy plates by using mathematical modelling. Quenching of aluminium alloy plates causes an uneven temperature variation in aluminum alloy plates, and elastic and elasto-plastic deformations occur inside the material. The latter causing the formation of deformations and residual stresses. The non-linear thermo-mechanical direct coupled analysis of the quenching process for a 6061 aluminium alloy plate was achieved by using ANSYS ﬁnite element software. The residual stresses due to solid thermal effects were determined by calculation of the Third principal stresses, the most negative or compressive. The developed mathematical model oﬀers a support in the understanding the behavior of the residual stresses in aluminium alloy plates and a better control of them.

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The Influence of the Distance Between the Plate and the Top Nozzles During the Soft Quenching Process of the 6061 Aluminium Alloy Plates

Light Metals 2019 - The Minerals, Metals & Materials Series ◽

10.1007/978-3-030-05864-7_37 ◽

2019 ◽

pp. 285-293

Author(s):

Gheorghe Dobra ◽

Ioan Sava ◽

Carmen Nicoleta Stănică ◽

Marin Petre ◽

Cătălin Ducu ◽

...

Keyword(s):

Aluminium Alloy ◽

Quenching Process ◽

6061 Aluminium Alloy

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Surface Hardening of Aluminium Alloy with Addition of Zinc Particles by Friction Stir Processing

Open Engineering ◽

10.1515/eng-2020-0050 ◽

2020 ◽

Vol 10 (1) ◽

pp. 408-414

Author(s):

Nurul Muhayat ◽

Alvian Restu Putra Utama ◽

Keyword(s):

Mechanical Alloying ◽

Physical Properties ◽

Aluminium Alloy ◽

Friction Stir Processing ◽

Surface Hardening ◽

Alloy Plate ◽

Friction Stir ◽

Material Hardness ◽

Mechanical And Physical Properties ◽

Uppermost Layer

AbstractMechanical alloying can be carried out by a method known as friction stir processing, whereby solid Zn particles in a solution are distributed onto an aluminium alloy plate. The aim of this study was to determine the effects of a volume of Zn particles on the mechanical and physical properties of aluminium 1xxx alloy that had been subjected to friction stir processing. The specimens were plates composed of 1xxx series aluminium. A groove, measuring 12 mm in diameter, was pierced to various depths, and the Zn particles in these containers were then subjected to friction stir processing using a pin-less tool with a diameter of 15 mm. The results showed that the highest hardness was found in the uppermost layer of the workpiece, and this gradually decreased with thickness. An increase in the amount of Zn particles caused an increase in material hardness. The highest hardness of 87.1 HV in the friction stir-processed AA1100 was obtained at the highest volume of Zn compared to the hardness of 44.5 HV, which was obtained for the specimen without the addition of Zn.

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Kinetics of precipitation hardening in SiC whisker-reinforced 6061 aluminium alloy

Journal of Materials Science ◽

10.1007/bf02387805 ◽

1991 ◽

Vol 26 (23) ◽

pp. 6279-6287 ◽

Cited By ~ 21

Author(s):

C. Badini ◽

F. Marino ◽

A. Tomasi

Keyword(s):

Aluminium Alloy ◽

Precipitation Hardening ◽

Kinetics Of Precipitation ◽

6061 Aluminium Alloy ◽

Kinetics Of

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Influence of Aging on Corrosion Behaviour of the 6061 Cast Aluminium Alloy

Materials ◽

10.3390/ma14081821 ◽

2021 ◽

Vol 14 (8) ◽

pp. 1821

Author(s):

Ting He ◽

Wei Shi ◽

Song Xiang ◽

Chaowen Huang ◽

Ronald G. Ballinger

Keyword(s):

Aluminium Alloy ◽

Laser Scanning ◽

Corrosion Behaviour ◽

Laser Scanning Microscopy ◽

Confocal Laser ◽

Kelvin Probe ◽

Force Microscopy ◽

The Matrix ◽

6061 Aluminium Alloy

The influence of AlFeSi and Mg2Si phases on corrosion behaviour of the cast 6061 aluminium alloy was investigated. Scanning Kelvin probe force microscopy (SKPFM), electron probe microanalysis (EPMA), and in situ observations by confocal laser scanning microscopy (CLSM) were used. It was found that Mg2Si phases were anodic relative to the matrix and dissolved preferentially without significantly affecting corrosion propagation. The AlFeSi phases’ influence on 6061 aluminium alloy local corrosion was greater than that of the Mg2Si phases. The corroded region width reached five times that of the AlFeSi phase, and the accelerating effect was terminated as the AlFeSi dissolved.

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