Interplay Between Cooling Rate, Microstructure, and Mechanical Properties of an Al–Ce–Ni–Mn Alloy

Kozakevich, Jordan Roger; Stroh, Joshua; Mallouhi, Victor; Sediako, D.; Weiss, David

doi:10.1007/978-3-030-92529-1_11

Cited by 7 publications

(19 citation statements)

References 25 publications

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“…According to the Al-rich Ce partial phase diagram in Figure 1 [12], Al 11 Ce 3 is the most common intermetallic phase. It has been reported that this phase is the essential intermetallic phase that controls the high-temperature properties of Al-Ce alloys [11,13]. Several investigations worked on modifying the shape of the secondary Ce-intermetallic phases [12] through either chemical modification [14], rapid solidification [13,15], or applying mechanical/magnetic stirring [16], as well as, most recently, via solidification under ultrasonic vibrations [17].…”

Section: Microstructure Refinement Of Al-xce Alloysmentioning

confidence: 99%

“…Kozakevich et al [11] established the relationship between the cooling rate and microstructure refinement of the Al-11Ce-3 Ni-1.2Mn alloy using a wedge-shaped mold. The size of both Al23Ce4Ni6 and primary Al11Ce3 phases was decreased in the range of 0.18 °C/s to 0.32 °C/s, which increased the high-temperature strength of the alloy.…”

Section: Rapid Solidificationmentioning

confidence: 99%

“…Kozakevich et al [11] established the relationship between the cooling rate and microstructure refinement of the Al-11Ce-3 Ni-1.2Mn alloy using a wedge-shaped mold. Ye et al [20] prepared a cast hyper eutectic Al-14 wt% Ce using a wedge-shaped copper mold.…”

Section: Rapid Solidificationmentioning

confidence: 99%

“…The mechanical properties of the Al11.3Ce3.2Ni1.2Mn (wt%) alloy were investigated by Kozakevich et al [11]. Stable primary and eutectic (Al 11 Ce 3 and Al 23 Ce 4 Ni 6 ) phases were obtained, which resulted in 75-83% retention of the tensile strength at 250 • C, while a 14-61% greater modulus of elasticity compared to that of RT was achieved.…”

Section: Introductionmentioning

confidence: 99%

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Solidification Processing of Al-Ce Alloys for High-Temperature Applications

El-Hadad,

Moussa,

Riedel

et al. 2023

Inalco 2023

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Section: Microstructure Refinement Of Al-xce Alloysmentioning

confidence: 99%

Section: Rapid Solidificationmentioning

confidence: 99%

Section: Rapid Solidificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Solidification Processing of Al-Ce Alloys for High-Temperature Applications

El-Hadad,

Moussa,

Riedel

et al. 2023

Inalco 2023

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“…To better understand the solidification kinetics of the Al-Ce-Ni-Mn alloy, differential scanning calorimetry (DSC) was performed on four samples from critical areas of the wedge mold in [26] (these results are summarized further in Section 3.2 of this paper). The experiment concluded that further investigation into the solidification kinetics of this alloy is warranted; a better understanding would enable a broader utilization of the alloy for various elevated-temperature applications in the automotive industry.…”

Section: Introductionmentioning

confidence: 99%

Solidification Kinetics of an Al-Ce Alloy with Additions of Ni and Mn

Kozakevich

Stroh

Sediako

et al. 2023

Metals

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Heat-treated aluminum–silicon (Al-Si)-based alloys have dominated the cast lightweight alloy industry for several decades. However, in the last decade, Al-Ce-based alloys have shown promise in replacing Al-Si alloys as they remove the need for costly heat treatments. As the properties of Al-Ce alloys depend on the as-cast microstructure, it is important to characterize the solidification kinetics of these alloys. Therefore, this study focused on characterizing the solidification of an Al-Ce alloy with additions of Ni and Mn (nominal composition Al-12.37Ce-3.26Ni-0.94Mn-0.12Fe in weight percent). The alloy was cast in a wedge mold configuration, resulting in cooling rates between 0.18 and 14.27 °C/s. Scanning electron microscopy (SEM) coupled with the energy dispersive x-ray spectroscopy (EDS) and differential scanning calorimetry (DSC) techniques characterized the evolution rate of solid phases. The SEM/EDS data revealed that an Al10CeMn2 phase was present at higher cooling rates. At lower cooling rates, near the center of the casting, a primary Al23Ce4Ni6 phase was more present. It was observed that up to 2.6 atomic percent (at.%) of Mn was dissolved in this primary Al23Ce4Ni6 phase, thereby removing a large portion of the available Mn for forming the Al10CeMn2 phase. DSC analysis showed differences in the samples’ liquidus temperatures, which indicated compositional variations. Inductively coupled plasma–atomic emission spectroscopy (ICP-OES) and Scheil solidification simulations correlated the compositional differences with phase formation, which agreed with the SEM and DSC results. This experiment provides insight into novel Al-Ce-Ni-Mn alloys and where their potential lies in industrial applications.

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