Influences of Quench Cooling Rate on Microstructure and Corrosion Resistance of Al-Cu-Mg Alloy Based on the End-Quenching Test

Yin, Yuan; Luo, Binghui; Jing, Hui-bo; Bai, Zongqing; Gao, Yang

doi:10.1007/s11663-018-1329-1

Cited by 8 publications

(2 citation statements)

References 33 publications

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“…Furthermore, small needle-like particles have been detected (Figure 2(b)) that correspond mainly to the S (Al 2 CuMg) phase in accordance with the Cu/Mg (3.4) ratio reported by García-Hernández et al [38]. Its appearance in the microstructure of the metallic mould casting could be related to the fast cooling rate that retains solute atoms in the matrix which caused the formation of more uniform dispersed fine precipitates [39].…”

Section: Microstructure Characterisationsupporting

confidence: 83%

Influence of the casting process on corrosion behaviour of 2024-T6 aluminium alloy in different conditions of pH and NaCl concentration

Mardaras

Imaz

González-Martínez

et al. 2023

Corrosion Engineering, Science and Technology

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Corrosion behaviour of 2024-T6 castings produced by sand mould and metallic mould has been studied in media with different sodium chloride concentrations and pH values, using electrochemical techniques and scanning electron microscope. Corrosion rates and anodic and cathodic reaction kinetics are detailed to provide a fundamental understanding of the electrochemical behaviour of 2024-T6 at different conditions. The study shows a different corrosion mechanism depending on the pH. At pH 12, the more negative values of E corr confirmed that the alkalinisation of aluminium incites the dissolution of the Al substrate. The effect of chloride concentration is reflected in shifts of E corr towards more negative values. The research on the effect of the used mould demonstrates that the impact of the casting process in the cooling rate affects the pitting corrosion resistance.

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Section: Microstructure Characterisationsupporting

confidence: 83%

Influence of the casting process on corrosion behaviour of 2024-T6 aluminium alloy in different conditions of pH and NaCl concentration

Mardaras

Imaz

González-Martínez

et al. 2023

Corrosion Engineering, Science and Technology

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“…In Ref. [211], indications of quench-induced precipitation of the T-Al 20 Cu 2 Mn 3 phase were found in a Jominy end quench sample of another AlCuMg alloy. Continuous cooling SAXS measurements in Ref.…”

Section: XXX Alcu(mg) Wrought Alloysmentioning

confidence: 96%

Review of the Quench Sensitivity of Aluminium Alloys: Analysis of the Kinetics and Nature of Quench-Induced Precipitation

et al. 2019

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For aluminium alloys, precipitation strengthening is controlled by age-hardening heat treatments, including solution treatment, quenching, and ageing. In terms of technological applications, quenching is considered a critical step, because detrimental quench-induced precipitation must be avoided to exploit the full age-hardening potential of the alloy. The alloy therefore needs to be quenched faster than a critical cooling rate, but slow enough to avoid undesired distortion and residual stresses. These contrary requirements for quenching can only be aligned based on detailed knowledge of the kinetics of quench-induced precipitation. Until the beginning of the 21st century, the kinetics of relevant solid-solid phase transformations in aluminium alloys could only be estimated by ex-situ testing of different properties. Over the past ten years, significant progress has been achieved in this field of materials science, enabled by the development of highly sensitive differential scanning calorimetry (DSC) techniques. This review presents a comprehensive report on the solid-solid phase transformation kinetics in Al alloys covering precipitation and dissolution reactions during heating from different initial states, dissolution during solution annealing and to a vast extent quench-induced precipitation during continuous cooling over a dynamic cooling rate range of ten orders of magnitude. The kinetic analyses are complemented by sophisticated micro- and nano-structural analyses and continuous cooling precipitation (CCP) diagrams are derived. The measurement of enthalpies released by quench-induced precipitation as a function of the cooling rate also enables predictions of the quench sensitivities of Al alloys using physically-based models. Various alloys are compared, and general aspects of quench-induced precipitation in Al alloys are derived.

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Correlation of Cooling Rate, Microstructure and Hardness of S34MnV Steel

Chen

Nash

Zhang

2019

Metall Mater Trans B

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Influences of Quench Cooling Rate on Microstructure and Corrosion Resistance of Al-Cu-Mg Alloy Based on the End-Quenching Test

Cited by 8 publications

References 33 publications

Influence of the casting process on corrosion behaviour of 2024-T6 aluminium alloy in different conditions of pH and NaCl concentration

Influence of the casting process on corrosion behaviour of 2024-T6 aluminium alloy in different conditions of pH and NaCl concentration

Review of the Quench Sensitivity of Aluminium Alloys: Analysis of the Kinetics and Nature of Quench-Induced Precipitation

Correlation of Cooling Rate, Microstructure and Hardness of S34MnV Steel

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