Investigating the effect of water cooling on hardness of 2xxx series aluminium alloy micro-alloyed with 0.02 and 0.04 wt% of Titanium

Bhuyan, Manash; Borah, Anil

doi:10.1016/j.matpr.2020.12.618

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…2xxx series aluminum alloys are widely used in spacecraft parts, engine pistons, aircraft structures, missile components, propellers, aircraft skeletons, etc. The 2xxx series aluminum alloys mainly include Al-Cu, Al-Cu-Mg, Al-Cu-Mg-Mn-Zr alloys, etc., which could be strengthened by heat treatment, and thereby the hardness and strength will be further improved after solutionizing treatment and the following artificial aging treatment [1][2][3]. The 2xxx series aluminum alloy, in particular, keeps good performance at high temperatures and is commonly used in weldable forgings and structural parts.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Prediction of Structural, Mechanical, and Thermophysical Properties of the Precipitates in 2xxx Series Aluminum Alloy

Fang¹,

Li²,

Zheng³

et al. 2022

Metals

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We presented a theoretical study for the structural, mechanical, and thermophysical properties of the precipitates in 2xxx series aluminum alloy by applying the widely used density functional theory of Perdew-Burke-Ernzerhof (PBE). The results indicated that the most thermodynamically stable structure refers to the Al3Zr phase in regardless of its different polymorphs, while the formation enthalpy of Al5Cu2Mg8Si6 is only −0.02 eV (close to zero) indicating its metastable nature. The universal anisotropy index of AU follows the trend of: Al2Cu > Al2CuMg ≈ Al3Zr_D022 ≈ Al20Cu2Mn3 > Al3Fe ≈ Al6Mn > Al3Zr_D023 ≈ Al3Zr_L12 > Al7Cu2Fe > Al3Fe2Si. The thermal expansion coefficients (TECs) were calculated based on Quasi harmonic approximation (QHA); Al2CuMg shows the highest linear thermal expansion coefficient (LTEC), followed by Al3Fe, Al2Cu, Al3Zr_L12 and others, while Al3Zr_D022 is the lowest one. The calculated data of three Al3Zr polymorphs follow the order of L12 > D023 > D022, all of them show much lower LTEC than Al substance. For multi-phase aluminum alloys, when the expansion coefficient of the precipitates is quite different from the matrix, it may cause a relatively large internal stress, or even produce cracks under actual service conditions. Therefore, it is necessary to discuss the heat misfit degree during the material design. The discrepancy between a-Al and Al2CuMg is the smallest, which may decrease the heat misfit degree between them and improve the thermal shock resistant behaviors.

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Section: Introductionmentioning

confidence: 99%

Theoretical Prediction of Structural, Mechanical, and Thermophysical Properties of the Precipitates in 2xxx Series Aluminum Alloy

Fang¹,

Li²,

Zheng³

et al. 2022

Metals

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Microstructural evolution and strengthening mechanisms of a novel Al–11Si–3Cu alloy microalloyed with minor contents of Sr and Sc

Shi

He²,

Chen³

et al. 2022

Materials Science and Engineering: A

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Evaluation of hardness and microstructural features in piston aluminum-silicon alloys after different ageing heat treatments

Farokhpour

Parast²,

Azadi³

2022

Results in Materials

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Investigating the effect of water cooling on hardness of 2xxx series aluminium alloy micro-alloyed with 0.02 and 0.04 wt% of Titanium

Cited by 3 publications

References 9 publications

Theoretical Prediction of Structural, Mechanical, and Thermophysical Properties of the Precipitates in 2xxx Series Aluminum Alloy

Theoretical Prediction of Structural, Mechanical, and Thermophysical Properties of the Precipitates in 2xxx Series Aluminum Alloy

Microstructural evolution and strengthening mechanisms of a novel Al–11Si–3Cu alloy microalloyed with minor contents of Sr and Sc

Evaluation of hardness and microstructural features in piston aluminum-silicon alloys after different ageing heat treatments

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Investigating the effect of water cooling on hardness of 2xxx series aluminium alloy micro-alloyed with 0.02 and 0.04 wt% of Titanium

Cited by 3 publications

References 9 publications

Theoretical Prediction of Structural, Mechanical, and Thermophysical Properties of the Precipitates in 2xxx Series Aluminum Alloy

Theoretical Prediction of Structural, Mechanical, and Thermophysical Properties of the Precipitates in 2xxx Series Aluminum Alloy

Microstructural evolution and strengthening mechanisms of a novel Al–11Si–3Cu alloy microalloyed with minor contents of Sr and Sc

Evaluation of hardness and microstructural features in piston aluminum-silicon alloys after different ageing heat treatments

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Investigating the effect of water cooling on hardness of 2xxx series aluminium alloy micro-alloyed with 0.02 and 0.04 wt% of Titanium