Thermodynamic assessment of the Al–Cu–Gd system

Zhang, L.G.; Liu, L.B.; Huang, Guanghui; Qi, Haiying; Jia, Baoping; Jin, Zhanpeng

doi:10.1016/j.calphad.2009.08.003

Cited by 15 publications

(8 citation statements)

References 34 publications

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“…Bright inclusions in Al-Cu-Yb are present at the boundaries between the eutectic and the aluminum dendrites of either Al3Yb or (Al,Cu)17Yb2 phase. Into the ternary Al-Cu-Gd phase diagram in the equilibrium with aluminum solid-solution presented Al8Cu4Gd (τ1), Al3.2Cu7.8Gd (τ2), Al2Cu and Al3Gd phases [17]. The dispersed eutectic in Al-Cu-Gd alloy consists of aluminum solid solution and Al8Cu4Gd phases.…”

Section: Resultsmentioning

confidence: 96%

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Microstructure and Mechanical Properties of Novel Quasibinary Al-Cu-Yb and Al-Cu-Gd Alloys

Амер

Barkov

Поздняков

2021

Metals

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Microstructure of Al–Cu–Yb and Al-Cu-Gd alloys at casting, hot-rolled -cold-rolled and annealed state were observed; the effect of annealing on the microstructure was studied, as were the mechanical properties and forming properties of the alloys, and the mechanism of action was explored. Analysis of the solidification process showed that the primary Al solidification is followed by the eutectic reaction. The second Al8Cu4Yb and Al8Cu4Gd phases play an important role as recrystallization inhibitor. The Al3Yb or (Al, Cu)17Yb2 phase inclusions are present in the Al-Cu-Yb alloy at the boundary between the eutectic and aluminum dendrites. The recrystallization starting temperature of the alloys is in the range of 250–350 °C after rolling with previous quenching at 590 and 605 °C for Al-Cu-Yb and Al-Cu-Gd, respectively. The hardness and tensile properties of Al-Cu-Yb and Al-Cu-Gd as-rolled alloys are reduced by increasing the annealing temperature and time. The as-rolled alloys have high mechanical properties: YS = 303 MPa, UTS = 327 MPa and El. = 3.2% for Al-Cu-Yb alloy, while YS = 290 MPa, UTS = 315 MPa and El. = 2.1% for Al-Cu-Gd alloy.

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Section: Resultsmentioning

confidence: 96%

“…It was found that after partial replacement of Sc with either Yb or Gd, the mechanical properties, such as incubation time and peak hardness of the Al alloy were improved [16]. The recrystallization process of the Al-Cu-Mn alloy can be greatly slowed by the addition of Gd [17].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Novel Quasibinary Al-Cu-Yb and Al-Cu-Gd Alloys

Амер

Barkov

Поздняков

2021

Metals

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“…This difference is much higher than the experimental errors and the distinction between various elements in the Al-Ln series. In addition, there are new papers [34][35][36][37][38][39][40] for Al-Ln systems focusing on the simulation of their thermodynamic properties, differing largely from [10] as well.…”

Section: Comparison Of the Thermodynamic Properties Of Al-ln Meltsmentioning

confidence: 99%

Thermodynamic Properties of Binary Al–Pr Alloys

Shevchenko

Березуцкий

Иванов

et al. 2016

Powder Metall Met Ceram

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The mixing enthalpies of Al-Pr binary liquid alloys are measured in the ranges 0 < x Pr < 0.15 at 1560 K and 0.46 < x Pr < 1 at 1410-1670 K by isoperibol calorimetry. The Al-Pr binary melts are characterized by significant negative mixing enthalpies: min Pr Al H   = -43.1 kJ/mol at x Pr = 0.33 (at 1500 K, extrapolation onto the range of supercooled melts). The activities of components, entropies, Gibbs energies, and liquidus curve of the Al-Pr phase diagram are evaluated using the model of ideal associated solutions.

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“…정량 분석된 Cu와 Gd의 상분율을 확인하였을 때, Table 2에 나타난 Cu 9 Gd 2 상으로 분석할 수 있다. [15][16][17][18]. 한준희의 말을 따르 면 나노 인덴테이션의 경도 값을 이용하여 비커스 경도 값으 로 환산할 수 있다 [19].…”

Section: 임재한·정현도·안지호·문병문unclassified

Microstructure and Fracture Property of 1A Grade Duplex Stainless Steel with the Addition of Gadolinium

Lim¹,

Jung²,

Ahn³

et al. 2016

Journal of Korea Foundry Society

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CD4MCU duplex stainless steel with gadolinium was fabricated as a neutron absorbing material by the air induction melting method. The gadolinium formed intermetallic compounds of Cu-Gd-Fe. There were no significant differences in hardness or ultimate tensile strength between experimental alloys. With the addition of gadolinium the yield strength of the cast alloy significantly increased, from 478.8 ± 11.6 to 514.2 ± 29.9 MPa, whereas elongation of the cast alloy decreased with the addition of gadolinium, from 26.0 ± 7.1 to 7.0 ± 2.5% due to the formation of gadolinium based intermetallic compounds.

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Thermodynamic assessment of the Al–Cu–Gd system

Cited by 15 publications

References 34 publications

Microstructure and Mechanical Properties of Novel Quasibinary Al-Cu-Yb and Al-Cu-Gd Alloys

Microstructure and Mechanical Properties of Novel Quasibinary Al-Cu-Yb and Al-Cu-Gd Alloys

Thermodynamic Properties of Binary Al–Pr Alloys

Microstructure and Fracture Property of 1A Grade Duplex Stainless Steel with the Addition of Gadolinium

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