Effect of Er Addition on the High Temperature Strength of Al-Si-Cu-Ni-Mg-Fe Piston Alloys

Li, Xianfeng; Xia, Cunjuan; Wu, Yi; Chen, Dong; Wang, Mingliang; Ma, Naiheng; Wang, Haowei

doi:10.5755/j01.ms.25.4.19453

Cited by 6 publications

(4 citation statements)

References 38 publications

(51 reference statements)

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“…The properties of aluminum alloys are associated with the microstructural evolution. Rare earth Er can modify their microstructures and affect their properties [2]. In the Al-20wt%Si alloy, appropriate Er addition can refine the primary Si and modify the structure of eutectic Si, resulting in improved ultimate tensile strength and elongation [3].…”

Section: Introductionmentioning

confidence: 99%

Effects of Al8Cu4Er Phase on Corrosion Behavior of Al–Cu–Mg alloy with Er addition

Shi

Zhou

Zhang

2020

Acta Metall. Sin. (Engl. Lett.)

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The effect of Al 8 Cu 4 Er phase on the corrosion behavior of Al-Cu-Mg alloy with rare earth Er addition in an under-aging state was studied. The results revealed that the addition Er into the Al-Cu-Mg alloy induced the formation of Al 8 Cu 4 Er phase. The Al 8 Cu 4 Er phase can significantly refine the grains during recrystallization, thereby suppressing the continuous precipitation of S-phase at grain boundaries and improving the resistance to intergranular corrosion. Conversely, the corrosion susceptibility of local regions around the Al 8 Cu 4 Er phase with large dimension was higher than that of the AlCuFeMnSi phase, but weaker than that of θ phase, resulting in decreased pitting corrosion resistance.

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Section: Introductionmentioning

confidence: 99%

Effects of Al8Cu4Er Phase on Corrosion Behavior of Al–Cu–Mg alloy with Er addition

Shi

Zhou

Zhang

2020

Acta Metall. Sin. (Engl. Lett.)

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“…solute atoms, grain boundaries and dislocation interactions at room temperature). Dislocations are not only easy to slip but also easy to climb [33], and eutectic silicon particles in WAAM alloys cannot grow up and agglomerate under short-term high temperature, which reduces the chance of the second generation of crack sources within the grain boundaries. The diffusion controlled grain boundary slip gradually replaces dislocation transport, and starting to dominate the deformation process of the alloy.…”

Section: Discussionmentioning

confidence: 99%

Investigation on high-temperature mechanical properties of Al–7Si–0.6Mg alloy by wire + arc additive manufacturing

Wang

et al. 2020

Materials Science and Technology

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The room temperature and high temperature tensile properties of Al–7Si–0.6Mg alloy prepared by wire arc additive manufacturing have been investigated. The results show that the strengthening phase gradually coarsens and the eutectic silicon phase does not grow and agglomerate, meanwhile, the tensile strength and yield strength of the alloy gradually decrease with the increase of temperature. The high-temperature properties of the alloy are better than that of cast alloy. With the increase of temperature, the fracture of the alloy changes from ductile transgranular fracture to intergranular fracture.

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“…Therefore, many researchers are working to modify the morphology of β-Al 5 FeSi phases, such as by adding the alloying elements Mn, Nb, Co, Sc, Er, etc. [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Cooling Rate on the Microstructure Evolution and Mechanical Properties of Iron-Rich Al–Si Alloy

et al. 2022

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The mechanical properties of iron-rich Al–Si alloy is limited by the existence of plenty of the iron-rich phase (β-Al5FeSi), whose unfavorable morphology not only splits the matrix but also causes both stress concentration and interface mismatch with the Al matrix. The effect of the cooling rate on the tensile properties of Fe-rich Al–Si alloy was studied by the melt spinning method at different rotating speeds. At the traditional casting cooling rate of ~10 K/s, the size of the needle-like β-Al5FeSi phase is about 80 μm. In contrast, the size of the β-Al5FeSi phase is reduced to 500 nm and the morphology changes to a granular morphology with the high cooling rate of ~104 K/s. With the increase of the cooling rate, the morphology of the β-Al5FeSi phase is optimized, meanwhile the tensile properties of Fe-rich Al–Si alloy are greatly improved. The improved tensile properties of the Fe-rich Al-Si alloy is attributed to the combination of Fe-rich reinforced particles and the granular silicon phase provided by the high cooling rate of the melt spinning method.

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Effect of Er Addition on the High Temperature Strength of Al-Si-Cu-Ni-Mg-Fe Piston Alloys

Cited by 6 publications

References 38 publications

Effects of Al8Cu4Er Phase on Corrosion Behavior of Al–Cu–Mg alloy with Er addition

Effects of Al8Cu4Er Phase on Corrosion Behavior of Al–Cu–Mg alloy with Er addition

Investigation on high-temperature mechanical properties of Al–7Si–0.6Mg alloy by wire + arc additive manufacturing

Effect of Cooling Rate on the Microstructure Evolution and Mechanical Properties of Iron-Rich Al–Si Alloy

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