Alloys with Nickel

Белов, Н. А.; Eskin, Dmitry; Aksenov, A. A.

doi:10.1016/b978-008044537-3/50007-x

Cited by 36 publications

(57 citation statements)

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“…The TM:Si ratio is calculated as 1.5, 1.7 and 2.1 for the dispersoids formed in Mn-, Cr-and Fe-addition alloys, respectively. The ratio of TM:Si obtained in this work is similar to the dispersoids of Al 15 Mn 3 Si 2 [19] (or Al 12 Mn 3 Si 2 [20]), Al 8 Fe 2 Si [21] and Al 8.9 Cr 4 Si 2.1 [22] reported before. Only Al and TM peaks are detected for Co and Ni-addition alloys (Fig.…”

Section: Resultssupporting

confidence: 77%

Variation of age-hardening behavior of TM-addition Al–Mg–Si alloys

Wang

Matsuda

Kawabata

et al. 2011

Journal of Alloys and Compounds

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Section: Resultssupporting

confidence: 77%

Variation of age-hardening behavior of TM-addition Al–Mg–Si alloys

Wang

Matsuda

Kawabata

et al. 2011

Journal of Alloys and Compounds

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“…Decrease in temperature during solidification triggers the formation of intermetallic phases near the grain boundary regions and inside the grains. The intermetallic Al 3 Fe gets precipitated in the temperature range 655–629 ℃, the corresponding reaction can be represented as 43 …”

Section: Resultsmentioning

confidence: 99%

“…Another phase containing Mg and Si generally precipitates in the temperature range 595–449 ℃ as per the reaction 43 …”

Section: Resultsmentioning

confidence: 99%

“…Higher cooling rate favors the precipitation of the intermetallic phase α-Al 8 Fe 2 Si and suppresses the precipitation of the phase Al 3 Fe. 43 Higher cooling rate also affects the precipitation of the intermetallic phase Mg 2 Si significantly. It was reported that fast solidification of the molten Al–Zn–Mg alloy containing Fe and Si enhances the precipitation of Al 8 Fe 2 Si and suppresses early precipitation of Al 3 Fe 43 and Mg 2 Si.…”

Section: Resultsmentioning

confidence: 99%

“…43 Higher cooling rate also affects the precipitation of the intermetallic phase Mg 2 Si significantly. It was reported that fast solidification of the molten Al–Zn–Mg alloy containing Fe and Si enhances the precipitation of Al 8 Fe 2 Si and suppresses early precipitation of Al 3 Fe 43 and Mg 2 Si. 34 Slower cooling rate favors coarser grains and intermetallics, whereas higher cooling rates refines the grains as well as the precipitated intermetallic phases.…”

Section: Resultsmentioning

confidence: 99%

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Multi-physics simulation of in situ microwave casting of 7039 Al alloy inside different applicators and cast microstructure

Mishra

Sharma

2018

Proceedings of the Institution of Mechanical Engineers, Part E:

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In the present study, finite element models of three different applicators (A1, A2, and A3) having different power densities were developed to study melting of the charge and solidification of the melt during in situ microwave casting. Multi-physics simulations were carried out to understand the effect of applicator specific processing conditions on the distribution of electric field inside the cavities at 2.45 GHz for Al 7039 alloy as charge. The alloy was cast inside the selected applicators and the mold temperature was monitored. The experimental results showed reasonable agreement with the simulation data. Simulation results revealed that the distribution of electromagnetic field inside A3 offers the lowest melting time of the charge (141% less than A1); however, it also caused the highest preheating of the graphite mold with respect to A1 (30% higher) and A2 (25% higher). It was found that the applicator-specific solidification conditions affect grain structure, intermetallic precipitation, and their distribution inside the casts. Coarser intermetallic phases (57 µm) and grains (97 ± 54 µm) were present in the Cast 3 developed using A3 due to higher preheating of the mold and slower cooling rate of the melt as compared to that in A1 and A2.

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Microstructure, Hardening, and Mechanical Properties of Hypoeutectic Al–Ce–Ni Alloys with Zr and Zr + Sc Additions and the Effect of Ultrasonic Melt Processing

Chankitmunkong,

Wang,

Limmaneevichitr

et al. 2023

Adv Eng Mater

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Ternary Al‐Ce‐Ni alloys have a potential in the manufacture of automotive and airspace components, as well as in replacing traditional aluminum alloys in high‐temperature applications, which is determined by the formation of fine and thermally stable Al11Ce3 and Al3Ni eutectic. In this study we successfully improved the microstructure and mechanical properties of a hypoeutectic Al4Ce2Ni alloy by using Zr and Zr+Sc additions combined with ultrasonic melt processing and dispersion hardening. As a result, the grain structure of the as‐cast alloys was significantly refined and the annealing at 350 °C led to a considerable hardening effect, especially in the alloys with Zr+Sc additions (doubling the hardness). Al3Zr and Al3(Zr,Sc) coherent particles were identified as hardening nano‐precipitates. The compressive mechanical testing at room and elevated temperatures showed that the additions of Zr and Zr+Sc improved the strength with the additional increase caused by ultrasonic melt processing.This article is protected by copyright. All rights reserved.

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Alloys with Nickel

Cited by 36 publications

References 0 publications

Variation of age-hardening behavior of TM-addition Al–Mg–Si alloys

Variation of age-hardening behavior of TM-addition Al–Mg–Si alloys

Multi-physics simulation of in situ microwave casting of 7039 Al alloy inside different applicators and cast microstructure

Microstructure, Hardening, and Mechanical Properties of Hypoeutectic Al–Ce–Ni Alloys with Zr and Zr + Sc Additions and the Effect of Ultrasonic Melt Processing

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