Development of Heat-Resistant Composites Based on Al-Mg-Si Alloy Mechanically Alloyed with Aluminide Particles

Prosviryakov, A. S.; Bazlov, A. I.; Mikhaylovskaya, A. V.

doi:10.1007/s11837-023-06278-4

Cited by 2 publications

(3 citation statements)

References 37 publications

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“…Notably, the Zr-free Al-7.7Mn-3.1Cu (wt%) alloy processed by high-energy ball milling and hot-press sintering at 400 • C exhibits a yield strength of ~900 MPa at room temperature and ~220 MPa at 350 • C [109]. Similar strength are found for aluminum-based alloys mechanically alloyed with Al 3 Zr and Al 3 Ti particles [100]. The studied Al-4.2 at/7.7wt%Mn-1.5 at/3.2 wt%Cu-1.6 at/4.9 wt%Zr alloy demonstrated a yield strength of 1100 MPa, an ultimate compressive strength of 1200 MPa at room temperature, and a yield strength of 380 MPa and an ultimate compressive strength of 440 MPa at the elevated temperature of 350 • C. Therefore, Zr has a considerable influence on the strength properties of the alloy at both temperatures.…”

Section: Mechanical Properties Of the Alloy After Annealing And Hot-p...mentioning

confidence: 59%

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The Microstructure and Properties of Al–Mn–Cu–Zr Alloy after High-Energy Ball Milling and Hot-Press Sintering

Yakovtseva,

Mochugovskiy,

Prosviryakov

et al. 2024

Metals

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In the present research an Al–7.7%Mn–4.9%Zr–3.2%Cu (wt%) alloy was processed by mechanical alloying (MA) followed by hot press sintering. The microstructure, phase composition, and mechanical properties of the MA granules and sintered samples were investigated. The dissolution of Mn, Zr, and Cu with further precipitation of the Al6Mn phase were observed during high-energy ball milling. In the alloy processed without stearic acid after milling for ~10 h, an Al-based solid solution with ~4.9 wt%Zr, ~3.2 wt%Cu and a ~5 wt%Mn with a grain size of ~16 nm and a microhardness of ~530 HV were observed. The addition of stearic acid facilitated Mn dissolution and precipitation of the Al6Mn phase during milling but led to the formation of the ZrH2 phase that decreased the Zr solute and the microhardness. Precipitation of the Al6Mn, L12–Al3Zr, and Al2Cu phases during annealing and sintering of the MA granules in the temperate range of 350–375 °C was observed, and an additional Al20Cu2Mn3 phase was precipitated at 400–450 °C. Hot-press sintering at 450 °C provided a low fraction of cavities of ~1.5%, the yield strength of 1100 MPa, ultimate compressive strength of 1200 MPa, strain at fracture of 0.5% at room temperature, the yield strength of 380 MPa, ultimate compressive strength of 440 MPa, and strain at fracture of 3.5% at 350 °C. The microstructural evolution during high-temperature deformation on the sample surface was studied and the differences in deformation behavior for the alloys sintered at different temperatures were discussed.

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Section: Mechanical Properties Of the Alloy After Annealing And Hot-p...mentioning

confidence: 59%

“…It is notable that precipitation of Al 3 Zr does not occur in a milling time range of 8 to 20 h for binary Al-Zr alloys [71,73,99]. The L1 2 -Al 3 Zr phase is formed in Al-25at%Zr alloy after high energy ball milling of elemental Al and Zr powders [100].…”

Section: Effect Of Mechanical Alloyingmentioning

confidence: 96%

The Microstructure and Properties of Al–Mn–Cu–Zr Alloy after High-Energy Ball Milling and Hot-Press Sintering

Yakovtseva,

Mochugovskiy,

Prosviryakov

et al. 2024

Metals

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“…On this basis, in order to further improve the microstructure of the composites and enhance the mechanical properties of the composites, combined with the characteristics of 6061 aluminum matrix composites, the aging treatment process has an important influence on the microstructure and properties of quasicrystalline-reinforced 6061 aluminum matrix composites [16,18,19]. Reasonable control of aging treatment parameters (e.g., temperature, time, etc.)…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Al-Cu-Fe-Ce Quasicrystalline-Reinforced 6061 Aluminum Matrix Composites after Aging

Wang,

He,

Yang

2024

Coatings

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Al-Cu-Fe-Ce quasicrystalline-reinforced 6061 aluminum matrix composites were prepared through hot press sintering and treated with a solid solution and aging treatments. The influence of the solid solution and aging treatments on the microstructure and mechanical properties of the composites was investigated by XRD, EDS, SEM, and TEM. The results show that using Al-Cu-Fe-Ce quasicrystalline intermediate alloy as the reinforcing phase increases the interfacial areas of the composites and enhances the grain boundary strengthening effect, which is conducive to the improvement of the mechanical properties of the composites. And through the solid solution and aging treatment, the β phase and the Al2CuMg phase belonging to the orthorhombic crystal system, as well as the β″ phase and a small amount of the β′ precipitated phase, were formed in aluminum matrix composites, and these precipitated phases all existed in the composites in a fine and uniform distribution, which ensured the consistency of the mechanical properties of the materials and improved the mechanical properties of the composites. Meanwhile, the deficiency of quasicrystalline particle-reinforced 6061 aluminum matrix composites in age-hardening was solved and the age-hardening capability of the composites was further developed. This method provides a feasible process route for the preparation of high-performance aluminum matrix composites. The application of this process is expected to improve the mechanical properties and durability of this composite and offer a more reliable option for the application of aluminum matrix composites in aerospace, transportation, and other fields.

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Development of Heat-Resistant Composites Based on Al-Mg-Si Alloy Mechanically Alloyed with Aluminide Particles

Cited by 2 publications

References 37 publications

The Microstructure and Properties of Al–Mn–Cu–Zr Alloy after High-Energy Ball Milling and Hot-Press Sintering

The Microstructure and Properties of Al–Mn–Cu–Zr Alloy after High-Energy Ball Milling and Hot-Press Sintering

Microstructure and Properties of Al-Cu-Fe-Ce Quasicrystalline-Reinforced 6061 Aluminum Matrix Composites after Aging

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