Prediction of hot deformation behavior of Al–5.9%Cu–0.5%Mg alloys with trace additions of Sn

Banerjee, Sanjib; Robi, P. S.; Srinivasan, A.

doi:10.1007/s10853-011-5873-1

Cited by 24 publications

(9 citation statements)

References 47 publications

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“…Since the most common strategy to enhance the mechanical strength of these kind of alloys is to add micro alloying elements that facilitate both precipitation and solution hardening phenomenon simultaneously [4]. Over recent decades, the artificially aged (T6) Al-Cu-based binary, ternary, and quaternary-based alloys containing small contents of Mg, Mn, Si, and Sn alloying elements have been the most pervasive when compared to traditional Al-based alloys [5][6][7][8][9][10]. Indeed, the coherency, size, interparticle spacing, and distribution of the precipitates plays a pivotal role in manipulating the strength of the Al-Cu-Mg-based alloys at elevated temperatures [11].…”

Section: Introductionmentioning

confidence: 99%

Effects of Mg Content on the Microstructural and Mechanical Properties of Al-4Cu-xMg-0.3Ag Alloys

et al. 2020

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The aim of the present research is to manipulate the amenability between composition-microstructure-property relationships in two kinds of Al-4Cu-xMg-0.3Ag alloys (where x = 0.4 and 1.4) having different Cu/Mg ratios (~9.54 and ~2.87). The effect of artificial ageing (T6) on the precipitation hardening behavior and resulting mechanical properties were also assessed and compared to two different scenarios of composition. Experimental results revealed that the modification in Magnesium concentration from 0.4 to 1.4 wt.% has a marked effect in increasing the micro hardness, ultimate tensile stress, and elongation of the alloy. Based on the microstructural analysis, the enhancement in mechanical properties was explained and addressed by considering the dual role of Mg content in the base alloy. On one hand, a large size of Mg atom produces a solid solution hardening effect, while on the other hand, a high content of Mg further promotes the formation of second phase S-type precipitate (Al2CuMg) with various mixed morphologies. This unraveling co-precipitation phases within the matrix provide an obstacle for the dislocation glide thereby increasing mechanical strength and strain hardenability.

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Section: Introductionmentioning

confidence: 99%

Effects of Mg Content on the Microstructural and Mechanical Properties of Al-4Cu-xMg-0.3Ag Alloys

et al. 2020

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“…However, there are always some limitations for the original constitutive model. In order to accurately describe and predict the flow behaviors for the different metals or alloys, considerable research has been carried out to modify this equation by considering the special effects of the forming processing parameters [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Constitutive modeling for hot deformation behavior of ZA27 alloy

Liu

et al. 2012

J Mater Sci

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The hot deformation behavior of ZA27 alloy was investigated in the temperature range of 473-523 K with the strain rates in the range of 0.01-5 s -1 and the height reduction of 60 % on Gleeble-1500 thermo mechanical simulator. Based on the experimental results, constitutive equations incorporating the effects of temperature, strain rate, and strain have been developed to model the hot deformation behavior of ZA27 alloy. Material constants, a, n, ln A, and activation energy Q in the constitutive equations were calculated as a function of strain. The results showed that the stress-strain curves of ZA27 alloy predicted by the constitutive equations are in good agreement with experimental results, which validates the efficiency of the constitutive equations in describing the hot deformation behavior of the material.

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“…The thermal processing maps of the Cu-1.7Ni-1.4Co-0.65Si alloy are constructed under Dynamic Material Modeling (DMM) [17][18][19][20], which is based on the mechanical principle, physical system modeling and irreversible thermodynamics principle of severe plastic deformation. According to the DMM model theory, the energy P consumed by plastic deformation per unit volume of material can be divided into two components, G and J, where G represents the energy consumed by the plastic deformation and J represents the energy consumed by the physical metallurgy mechanism, such as dynamic recovery, dynamic recrystallization and internal defects deformation induced by second phase transformation and precipitation [21,22]. Then, P can be expressed in Equation ( 12):…”

Section: The Construction and Analysis Of Hot Deformation Processing Mapsmentioning

confidence: 99%

Hot Deformation Behavior and Microstructure Evolution of Cu–Ni–Co–Si Alloys

Liu

Ma²,

Peng³

et al. 2020

Materials

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The Cu-1.7Ni-1.4Co-0.65Si (wt%) alloy is hot compressed by a Gleeble-1500D machine under a temperature range of 760 to 970 °C and a strain rate range of 0.01 to 10 s−1. The flow stress increases with the extension of strain rate and decreases with the rising of deformation temperature. The dynamic recrystallization behavior happens during the hot compression deformation process. The hot deformation activation energy of the alloy can be calculated as 468.5 kJ/mol, and the high temperature deformation constitutive equation is confirmed. The hot processing map of the alloy is established on the basis of hot deformation behavior and hot working characteristics. With the optimal thermal deformation conditions of 940 to 970 °C and 0.01 to 10 s−1, the fine equiaxed grain and no holes are found in the matrix, which can provide significant guidance for hot deformation processing technology of Cu–Ni–Co–Si alloy.

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Prediction of hot deformation behavior of Al–5.9%Cu–0.5%Mg alloys with trace additions of Sn

Cited by 24 publications

References 47 publications

Effects of Mg Content on the Microstructural and Mechanical Properties of Al-4Cu-xMg-0.3Ag Alloys

Effects of Mg Content on the Microstructural and Mechanical Properties of Al-4Cu-xMg-0.3Ag Alloys

Constitutive modeling for hot deformation behavior of ZA27 alloy

Hot Deformation Behavior and Microstructure Evolution of Cu–Ni–Co–Si Alloys

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